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The #DIY-Thermocam is a #do-it-yourself #infrared #camera, based on the popular FLIR Lepton long-wave-infrared array sensor. Everything, from #software to #hardware, is completely #open-source! This allows everyone to modify or extend the functionalities of the device to their own needs!

Features:
- Fast #ARM #Cortex M4 processor (240MHz), based on the popular, #Arduino compatible #Teensy 3.6
- 160 x 120 pixel FLIR Lepton3 long-wave infrared array sensor for live thermographic #images
- Frame rate of up to 9 FPS (US export compliance) over the serial connection, 5 FPS on the device itself
- 2 MP visual camera to capture optical images, that can be used in a combined image
- MLX90614 single point-infrared sensor for high-precision spot temperatures (10° FOV)
- HDMI or analog #video output capabilities (640x480 pixel) over external video output module
- 3 operating modes: thermal only, thermal + visual, video recording
- 18 different color schemes including rainbow, ironblack, grayscale, hot & cold
- 3.2 inch LCD touch #display with bright colors, wide angle and resistive touch
- Save thermal and visual images with a resolution of 640x480 pixels on the device
- Save real-time videos and interval images with different time-lapse settings
- 8GB internal storage, accessible as an exchangeable SD / microSD slot
- 2500 mAh lithium polymer battery for long operation time (4-6 hours)
- Open-source firmware written in Arduino compatible C/C++ code
- Regular #firmware #updates with new features, flashable over a standalone firmware updater
- Standalone thermal viewer application to save high-quality thermal images & videos on the computer
- Fully compatible to the comprehensive thermal analysis software #ThermoVision by Joe-C
- Use simple commands to receive all thermal & configuration data over the #USB serial port with high speed

http://www.diy-thermocam.net
https://github.com/maxritter/DIY-Thermocam



#FOSS #FLOSS #OpenSource #SoftwareLibre #OpenHardware #HardwareLibre #Libre #Free #Freedom
 
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The #DIY-Thermocam is a #do-it-yourself #infrared #camera, based on the popular FLIR Lepton long-wave-infrared array sensor. Everything, from #software to #hardware, is completely #open-source! This allows everyone to modify or extend the functionalities of the device to their own needs!

Features:
- Fast #ARM #Cortex M4 processor (240MHz), based on the popular, #Arduino compatible #Teensy 3.6
- 160 x 120 pixel FLIR Lepton3 long-wave infrared array sensor for live thermographic #images
- Frame rate of up to 9 FPS (US export compliance) over the serial connection, 5 FPS on the device itself
- 2 MP visual camera to capture optical images, that can be used in a combined image
- MLX90614 single point-infrared sensor for high-precision spot temperatures (10° FOV)
- HDMI or analog #video output capabilities (640x480 pixel) over external video output module
- 3 operating modes: thermal only, thermal + visual, video recording
- 18 different color schemes including rainbow, ironblack, grayscale, hot & cold
- 3.2 inch LCD touch #display with bright colors, wide angle and resistive touch
- Save thermal and visual images with a resolution of 640x480 pixels on the device
- Save real-time videos and interval images with different time-lapse settings
- 8GB internal storage, accessible as an exchangeable SD / microSD slot
- 2500 mAh lithium polymer battery for long operation time (4-6 hours)
- Open-source firmware written in Arduino compatible C/C++ code
- Regular #firmware #updates with new features, flashable over a standalone firmware updater
- Standalone thermal viewer application to save high-quality thermal images & videos on the computer
- Fully compatible to the comprehensive thermal analysis software #ThermoVision by Joe-C
- Use simple commands to receive all thermal & configuration data over the #USB serial port with high speed

http://www.diy-thermocam.net
https://github.com/maxritter/DIY-Thermocam



#FOSS #FLOSS #OpenSource #SoftwareLibre #OpenHardware #HardwareLibre #Libre #Free #Freedom
 
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****#Pastilda: Open-source hardware password manager****
Pastilda is an open-source hardware #password #manager, designed to manage your credentials in a handy and secure way.
Pastilda works as a #middleman between your #computer and keyboard. It provides easy and safe auto-login to your #OS, bank accounts, mailboxes, corporate #network or social media. Pastilda stores #encrypted passwords in its memory. You can request a particular password at any time by pressing a special key combination on your keyboard.
Pastilda has two USB ports: one for your keyboard, one to connect to your #PC. Your OS will recognize Pastilda as a USB keyboard and a USB flash drive.
The flash drive component stores the encrypted #KeePass 2.x database (.kdbx file) and the KeePass 2.x portable #app as needed. Your real keyboard is now visible only to Pastilda, your PC won’t see it at all.
In normal working mode, all keystrokes from your keyboard are passed through Pastilda to your PC unchanged.
When you need to sign into an account, you switch to “Pastilda mode”. That’s done by placing your cursor inside the login text box and pressing the “Ctrl + ~” key combination. Pastilda will then ask you to enter the master password for your KeePass database, right in the current text box. If the password is entered correctly, Pastilda will decrypt and display your database. You can navigate through it with left, right, up, and down arrows or you can just start to input the name of the entry in your database and Pastilda will display matching variants. Once you find the entry you’re looking for, press Enter and Pastilda will automatically enter the corresponding login and password. If the password is incorrect, Pastilda gives you the option to try again or go back to regular mode by pressing the Esc key on your keyboard.

-----
Features & Specifications
- #Security:
- #Open-source #hardware and #software - you can trust Pastilda
- Never reveals the master key to the host
- Decrypted data stays on board, unreachable by malware
- Usability:
- List text heresummon Pastilda’s menu to any text field
- Compatibility:
- List text heresimulates a common keyboard, so it works with most systems by default, requiring no drivers or client software.
- List text hereworks with command line interfaces, BIOS, etc.
- MCU: STM32F415
- Connectivity: 2 x USB 2.0
- Memory: microSD card slot up to 32 GB
- Dimensions: 20 mm x 60 mm x 12 mm
- Weight: 50 g

https://www.crowdsupply.com/third-pin/pastilda



#FOSS #FLOSS #OpenHardware #HardwareLibre #Crowdsupply #Crowdfunding #Security #Privacy #Libre #Free #Freedom
 
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****#Pastilda: Open-source hardware password manager****
Pastilda is an open-source hardware #password #manager, designed to manage your credentials in a handy and secure way.
Pastilda works as a #middleman between your #computer and keyboard. It provides easy and safe auto-login to your #OS, bank accounts, mailboxes, corporate #network or social media. Pastilda stores #encrypted passwords in its memory. You can request a particular password at any time by pressing a special key combination on your keyboard.
Pastilda has two USB ports: one for your keyboard, one to connect to your #PC. Your OS will recognize Pastilda as a USB keyboard and a USB flash drive.
The flash drive component stores the encrypted #KeePass 2.x database (.kdbx file) and the KeePass 2.x portable #app as needed. Your real keyboard is now visible only to Pastilda, your PC won’t see it at all.
In normal working mode, all keystrokes from your keyboard are passed through Pastilda to your PC unchanged.
When you need to sign into an account, you switch to “Pastilda mode”. That’s done by placing your cursor inside the login text box and pressing the “Ctrl + ~” key combination. Pastilda will then ask you to enter the master password for your KeePass database, right in the current text box. If the password is entered correctly, Pastilda will decrypt and display your database. You can navigate through it with left, right, up, and down arrows or you can just start to input the name of the entry in your database and Pastilda will display matching variants. Once you find the entry you’re looking for, press Enter and Pastilda will automatically enter the corresponding login and password. If the password is incorrect, Pastilda gives you the option to try again or go back to regular mode by pressing the Esc key on your keyboard.

-----
Features & Specifications
- #Security:
- #Open-source #hardware and #software - you can trust Pastilda
- Never reveals the master key to the host
- Decrypted data stays on board, unreachable by malware
- Usability:
- List text heresummon Pastilda’s menu to any text field
- Compatibility:
- List text heresimulates a common keyboard, so it works with most systems by default, requiring no drivers or client software.
- List text hereworks with command line interfaces, BIOS, etc.
- MCU: STM32F415
- Connectivity: 2 x USB 2.0
- Memory: microSD card slot up to 32 GB
- Dimensions: 20 mm x 60 mm x 12 mm
- Weight: 50 g

https://www.crowdsupply.com/third-pin/pastilda



#FOSS #FLOSS #OpenHardware #HardwareLibre #Crowdsupply #Crowdfunding #Security #Privacy #Libre #Free #Freedom
 
OffGrid Solar Powered Workstation (Open Source Hardware)

This article is about finding out: What low-power PC with decent performance is best suitable for solar-powered (12v would be nice) Off-Grid-computing while respecting your privacy in an FSF-kind?



i have to admit… i am still in the progress… no finished dito-results, sorry.

But very interesting boards were found, Open Source Hardware is kickstarting!!!

Recommendations:



„Given the current situation, there is no ideal device available that would satisfy all the requirements to fully respect users‘ freedom: hardware freedom is missing and most firmwares, modem operating systems and bootroms are non-free. However, it is possible to choose a device that runs with free bootloaders and a free mobile operating system: Replicant, as well as free applications.

Privacy/security cannot be reliably achieved, but it is possible to get close to it by choosing a device that is not proven to have bad modem isolation, provides a reliable way of deactivating the modem or doesn’t feature any modem at all, in addition to running software that is as free as possible and following some general good advice.“

src: http://www.replicant.us/freedom-privacy-security-issues.php

Can the Raspberry be a „full PC with EXTEME Powersavings“?



maybe yes. but it needs a large binary GPU blop to boot – not OpenSource, not transparent possibly endangering your privacy.




I hope so… i would like to operate it with solar-panels and a 12V Battery! Off-Grid computing! That is why this matters!

DargonBox Pyra






Also interesting:



https://pyra-handheld.com/

Debian?



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not directly. shittt 😀

Why Richard Stallman would never buy: „The Raspberry Pi boots from its GPU and only non-free software is currently available for the GPU, even starting the machine requires a large (2MB) blob of non-free, unsupportable software“

„Generally, your best bet is to use Raspbian – which is (mostly) Debian armhf rebuilt by members of Debian for the RPi’s ARMv6+VFP2 ARM variant. Raspbian releases usually follow the corresponding Debian release but do deviate in a handful of cases for various reasons.

Be aware that the Raspbian images distributed by the Raspberry Pi Foundation contain additional packages supplied by them including updated versions of some software and the addition of non-free software including Oracle Java and Wolfram Mathematica.“

src: https://wiki.debian.org/RaspberryPi

https://perens.com/blog/2016/04/07/installing-the-native-debian-armhf-architecture-on-raspberry-pi-3-instead-of-raspbian/

The Power – where from?



„The built-in Wireless LAN and Bluetooth and the more powerful processor mean that the Raspberry Pi 3 draws about twice the current of its predecessor when under heavy CPU load (750mA vs 360mA).

Official Powersupply: 5v \* 2A = 10Watts „it’ll keep feeding your Pi the steady 2A it needs for proper performance.“

Unfortunately – it seems like – the Raspberry Pi can not be powered by simply plugin it’s power to a PC’s USB-Port.

„The Raspberry Pi can function on lower current power supplies e.g. 5V @ 1A. However, any excessive use of the USB ports or even heavy CPU/GPU loading can cause the voltage to drop, and instability during use. The latest versions of the Raspberry Pi B+/A+/2 have a “low voltage indicator icon” to notify the user if there is a problem with the power.



If you apply power to the USB port when you Pi is off, it will not boot. However, if you apply power to your Pi via one of the standard methods (e.g. the micro USB port), then apply power to USB ports and remove the original supply, it will stay on and functional.

It should be noted that USB ports have a current limit of 500mA, so we would not recommend you attempt to supply more than this via the USB!“

https://www.modmypi.com/blog/how-do-i-power-my-raspberry-pi

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src: https://raspberrypi.stackexchange.com/questions/43285/raspberry-pi-3-vs-pi-2-power-consumption-and-heat-dissipation

https://www.raspberrypi.org/magpi/raspberry-pi-3-specs-benchmarks/

„Updated following the release of the model B+, A+, Pi 2 Model B, and Pi Zero. According to measurements by Alex Eames [1][2][3][4]“

``` B with keyboard = 1.89 W -> daily 45 Wh
B+ with keyboard = 1.21 W -> daily 29 Wh
B+ with LAN/USB chip off (no i/o except GPIO) = 0.76 W -> daily 18.2 Wh
B+ shut down = 0.26 W -> daily 6.2 Wh
A idle = 0.7 W -> daily 17 Wh
A+ idle = 0.52 W -> daily 12.5 Wh
Pi2 B at idle = 1.15 W -> daily 28 Wh
Pi Zero at idle = 0.51 W -> daily 12.2 Wh

```„The Zero, A+ and B+ really offer huge improvements in the power circuitry. Wow!“

src: https://raspberrypi.stackexchange.com/questions/5033/how-much-energy-does-the-raspberry-pi-consume-in-a-day

Yeah u guys gonna hate me:

What i really like about JavaScript: It is ALWAYS OpenSource 🙂



and you can produce nice web-based (hardware independent) graphical outputs right on the screen…

but JavaScript is TOO SLOW!



We need more a C-kind of thing, lightweight, client-browser-sandboxed and secure scripting capabilities.

really!

some people like to load a lot of JavaScript on their sites. Combine that with massive not-downscaled pictures of 8MByte and you get a website that crashes every modern IPhone.

so it is really no wonder that a 64Bit-QuadCore, 1GByte embedded System like the Raspberry Pi has it’s problems with: JavaScript

„One of my biggest gripes was how slowly JavaScript-heavy websites loaded, when using both the Epiphany and Iceweasel web browsers. Given JS is so common in modern web sites and services this proved to be problematic.“

src: http://www.techrepublic.com/article/five-tips-for-getting-the-most-out-of-a-raspberry-pi-3-as-a-pc/

So you definitely want to use some light-weight linux like TinyCore Linux (12MByte) and https://noscript.net/

Youtube works! Firefox works! Opera works! 🙂





https://noscript.net/

Next thing: What about Startup of Applications?



„LibreOffice works extremely well taking only 9 seconds to boot with the Raspberry Pi 2.“

src: http://www.techrepublic.com/article/five-tips-for-getting-the-most-out-of-a-raspberry-pi-3-as-a-pc/

Raspi Pros and Cons from an Open Source FSF perspective:



Pros:
  • Large and active community
  • Low price for the capabilities offered
Cons:
  • The Raspberry Pi 1’s processor falls uncomfortably between the processor families that Debian has chosen to target. While Raspbian solves this to some degree an unofficial port will always give less certainty than an official one. (This doesn‘ stand anymore for the Raspberry Pi 2)
  • 3D acceleration is not integrated with X or other standard mechanisms and the Raspberry Pi Foundation don’t seem to show any interest in doing so. Therefore 3D applications will require Pi specific builds.
  • A binary blob used by the GPU must be present on the SD card for the system to boot.
  • While some hardware documentation has been released the documentation is sorely lacking.
  • While schematics are available the board design is closed and the main processor is not available for purchase by the general public.

EOMA68 – crowd funded OpenHardware project:



„The project is being developed by Luke Kenneth Casson Leighton of Rhombus-Tech and is sponsored by Christopher Waid of ThinkPenguin, a company that sells multiple RYF-certified hardware products. It is exciting to see passionate free software advocates in our community working with OEMs to produce a computer hardware product capable of achieving RYF certification. We hope that this is the first of many computing systems they are able to design and build that respect your freedom.

The Libre Tea Computer Card is built with an Allwinner A20 dual core processor configured to use the main CPU for graphics; it has 2 GB of RAM and 8 GB of NAND Flash; and it will come pre-installed with Parabola GNU/Linux-libre, an FSF-endorsed fully-free operating system.“NEWS and PROGRESS

https://archive.fosdem.org/2016/schedule/event/why_libre_hardware/

https://liliputing.com/2016/01/interview-with-eoma68-libre-laptop-developer-luke-kenneth-casson-leighton.html

http://elinux.org/images/9/9e/Eoma68.pdf





https://wiki.debian.org/OpenSourceHardware

https://www.facebook.com/luke.k.leighton A number of similar boards are available, generally at slightly higher prices but also usually with more powerful processors. Some examples are given below, more can be found in the FreedomBox targetted hardware list.

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also check out: http://www.hardkernel.com/main/
  • ODROID-C1 Amlogic S805 (4× Cortex-A5 @ 1.5 GHz, Mali-450), $35 (most directly Pi-alike)
    • The ODROID-C2 is a 64-bit quad-core single board computer(SBC) that is one of the most cost-effective 64bit development boards available in the ARM world. It can function as a home theater set-top box, a general purpose computer for web browsing, gaming and socializing, a compact tool for college or office work, a prototyping device for hardware tinkering, a controller for home automation, a workstation for software development, and much more.Some of the modern operating systems that run on the ODROID-C2 are Ubuntu, Android, ARCHLinux, Debian, with thousands of free open-source software packages available. The ODROID-C2 is an ARM device — the most advanced architecture for mobile devices and embedded 64-bit computing. The ARM processor’s small size, reduced complexity and low power consumption makes it very suitable for miniaturized devices such as wearables and embedded controllers.
    • \* Amlogic ARM® Cortex®-A53(ARMv8) 1.5Ghz quad core CPUs
      \* Mali™-450 GPU (3 Pixel-processors + 2 Vertex shader processors)
      * 2Gbyte DDR3 SDRAM
      \* Gigabit Ethernet
      \* HDMI 2.0 4K/60Hz display
      \* H.265 4K/60FPS and H.264 4K/30FPS capable VPU
      \* 40pin GPIOs + 7pin I2S
      \* eMMC5.0 HS400 Flash Storage slot / UHS-1 SDR50 MicroSD Card slot
      \* USB 2.0 Host x 4, USB OTG x 1 (power + data capable)
      \* Infrared(IR) Receiver
      \* Ubuntu 16.04 or Android 5.1 Lollipop based on Kernel 3.14LTS
    • Getting started: [url=http://odroid.com/dokuwiki/doku.php]http://odroid.com/dokuwiki/doku.php[/url]
    • STORE in Local : check it HERE
  • Cubieboard Allwinner A10 (Cortex A8, Mali400), $49
  • Banana Pi Allwinner A20 1GHz ARM Cortex-A7 Dual-Core, Pi-like improved, $45
  • Olimex OLinuxIno WIFI Cortex A8, €55
  • EOMA68 modules (Sampling March 2013, so not in full production yet), Allwinner A10 (Cortex A8, Mali400)
  • Beaglebone black omap3, $45
  • OlinuxIno Mini imx233 (ARM926, i.e Debian armel), €35
src: https://wiki.debian.org/RaspberryPi

Promising



Upcoming devices looking promising, but not yet available for general sale. \#raspberry #hardware #linux #raspberrypi #pi #embedded #energy #lowpower #computing #offgrid #solar #12v #alternatives #javascript #fsf #OpenHardware #privacy #openhardware
Originally posted at: http://dwaves.de/2016/11/05/offgrid-solar-powered-workstation-open-source-hardware/http://dwaves.de/2016/11/05/offgrid-solar-powered-workstation-open-source-hardware/
 

Some pictures of the latest #Pyra #ptototype revision



Here are some pictures of the latest prototype revision posted by Evil Dragon on the Pyra-Forum















#handheld #hardware #linux #debian #opensource #pyra-handheld

With full steam into the new year!

What traits does it improve?
 

Some pictures of the latest #Pyra #ptototype revision



Here are some pictures of the latest prototype revision posted by Evil Dragon on the Pyra-Forum















#handheld #hardware #linux #debian #opensource #pyra-handheld

With full steam into the new year!

What traits does it improve?
 

With full steam into the new year!



The original news post and discussion can be found here.

Whew, a LOT has happened during the last 10 days!
Mostly good news... so let's start right away!

1. CPU Board Redesign



As you know, Nikolaus worked on improving the vias and decoupling of the CPU Board to finally fix the 1,5GHz issue.

Well, and thanks to a community member, we were able to simulate the outcome so we wouldn't need to produce a new batch just for testing that (which would cost 9000 EUR and take 6 weeks of time).

The community member offered us to do the simulations... and in case you're asking why we couldn't do that ourselves:
The software used does cost about 90k USD... so... yeah :)
So we're really lucky. Where would we be without the community?

He simulated and compared the old revision and the new one with Nikolaus changes and checked that it fulfills everything that's needed according to the datasheets.

Here are some nice pictures that demonstrate the improvement:







Before someone cries in panic: RED does not mean BAD here.
The target voltage is 1,05V and the color shows how much voltage would be where.
So RED is great, green is okay and the more blue we have, the higher the voltage drop is (which is bad).

Here's a nice summary:




As you can see, while we're not reaching TIs ideal specifications 100%, the boards have been improved A LOT!

Here you can see the changed impedance of the old and new revision:








Quite a bit of improvement here!

The software can also simulate what happens when you add more capacitors.

We know it's not possible to achieve ideal conditions with that little space we have on our PCB, but that's not needed.
Ideal conditions are just the conditions under which the manufacturer guarantees that the SoC will work for sure.
This is rarely being achieved with such tight PCB designs, but they still work.

Heck, our current CPU Boards work with up to 1,2GHz, and they're MUCH worse than our improved layout.
This improved layout should easily enough to reach the 1,5GHz, but we can probably still squeeze one more capacitor to improve it even further.

So yes, our redesign worked, the possibility to simulate the behaviour was the best that could've happened to us!
Time to produce a few more CPU boards with that new layout - which should definitely be the final one!

2. The keymat



This monday I also received 30 samples of the tweaked keymat.
So, are we there yet?

YES - and no! But that no is not really an issue.

YES: The action buttons and keyboard feels GREAT! They are really nice to press, have a good pressure point.
So yes, the keymat is fine. No need to change it anymore, I really like it.

So what's the no?
You might remember that I decided that the plastic part of the DPad should also be produced by the keymat manufacturer and be glued on top by them.
Well, that plastic part is the first version and is feels great, it has just one minor issue:
The pivot goes down a bit too much. Which means: When you place the keymat onto the table, the pivot already touches the table without you even touching the DPad.
This, of course, makes it feel awkward.
Just using a bit of sandpaper fixed that issue, and for the mass production, it's a minor fix as well.

The most important thing is that the keymat is FINALLY finished! That was a pretty complex part, with all the layers, transparency, etc.
And now it's done - I'm really relieved. One thing less to worry about.

The DPad is a VERY simple part that can easily be changed and even printed with a 3D printer.

3. The mainboards



GC has populated the new prototype mainboards and display boards this Tuesday.
The last thing needed to assemble them to final units are some more cases (I've only got five here) - everything else is here.

So we can assemble multiple units now - and once I receive the next batch of cases, we can assemble 28 prototype units!

Now, some parts are lying around at Nikolaus' place, some at GC, some here... so we need to meet up to assemble everything, I hope we'll find the time for that next week!

4. The displays



800 displays have arrived at Global Components - 230 have been killed by the delivery service (by crushing a box against a wall...)
These will be replaced, of course - and I've asked them whether I could order 500 more... so maybe it's good that this happens ;)

The will be here in time, no worries. We'll need quite a bit of time to assemble the units (a new mass production will always take some time to speed up), and until then, the displays will be here.

5. Quick summary



Pheeww. So, CPU Board should be fixed now. Motherboard and Display board are done as well.
Keymat is finished, just the DPad needs a tiny fix.
Cases are finished except for the wiggling stylus and the too-hard-to-open battery cover.
Displays are finished, touchscreens are perfect.

All electronic parts needed for the mass production are already lying around at Global Components.

We've gotten a LOT closer to the finished Pyra now.
Now I'm hoping for the next case revision and the prototypes... yay!

#pyra #pyra-handheld #handheld #computer #gaming #hardware #linux

With full steam into the new year!

Whew, a LOT has happened during the last 10 days!
Mostly good news... so let's start right away!

1. CPU Board Redesign

As you know, Nikolaus worked...
 

With full steam into the new year!



The original news post and discussion can be found here.

Whew, a LOT has happened during the last 10 days!
Mostly good news... so let's start right away!

1. CPU Board Redesign



As you know, Nikolaus worked on improving the vias and decoupling of the CPU Board to finally fix the 1,5GHz issue.

Well, and thanks to a community member, we were able to simulate the outcome so we wouldn't need to produce a new batch just for testing that (which would cost 9000 EUR and take 6 weeks of time).

The community member offered us to do the simulations... and in case you're asking why we couldn't do that ourselves:
The software used does cost about 90k USD... so... yeah :)
So we're really lucky. Where would we be without the community?

He simulated and compared the old revision and the new one with Nikolaus changes and checked that it fulfills everything that's needed according to the datasheets.

Here are some nice pictures that demonstrate the improvement:







Before someone cries in panic: RED does not mean BAD here.
The target voltage is 1,05V and the color shows how much voltage would be where.
So RED is great, green is okay and the more blue we have, the higher the voltage drop is (which is bad).

Here's a nice summary:




As you can see, while we're not reaching TIs ideal specifications 100%, the boards have been improved A LOT!

Here you can see the changed impedance of the old and new revision:








Quite a bit of improvement here!

The software can also simulate what happens when you add more capacitors.

We know it's not possible to achieve ideal conditions with that little space we have on our PCB, but that's not needed.
Ideal conditions are just the conditions under which the manufacturer guarantees that the SoC will work for sure.
This is rarely being achieved with such tight PCB designs, but they still work.

Heck, our current CPU Boards work with up to 1,2GHz, and they're MUCH worse than our improved layout.
This improved layout should easily enough to reach the 1,5GHz, but we can probably still squeeze one more capacitor to improve it even further.

So yes, our redesign worked, the possibility to simulate the behaviour was the best that could've happened to us!
Time to produce a few more CPU boards with that new layout - which should definitely be the final one!

2. The keymat



This monday I also received 30 samples of the tweaked keymat.
So, are we there yet?

YES - and no! But that no is not really an issue.

YES: The action buttons and keyboard feels GREAT! They are really nice to press, have a good pressure point.
So yes, the keymat is fine. No need to change it anymore, I really like it.

So what's the no?
You might remember that I decided that the plastic part of the DPad should also be produced by the keymat manufacturer and be glued on top by them.
Well, that plastic part is the first version and is feels great, it has just one minor issue:
The pivot goes down a bit too much. Which means: When you place the keymat onto the table, the pivot already touches the table without you even touching the DPad.
This, of course, makes it feel awkward.
Just using a bit of sandpaper fixed that issue, and for the mass production, it's a minor fix as well.

The most important thing is that the keymat is FINALLY finished! That was a pretty complex part, with all the layers, transparency, etc.
And now it's done - I'm really relieved. One thing less to worry about.

The DPad is a VERY simple part that can easily be changed and even printed with a 3D printer.

3. The mainboards



GC has populated the new prototype mainboards and display boards this Tuesday.
The last thing needed to assemble them to final units are some more cases (I've only got five here) - everything else is here.

So we can assemble multiple units now - and once I receive the next batch of cases, we can assemble 28 prototype units!

Now, some parts are lying around at Nikolaus' place, some at GC, some here... so we need to meet up to assemble everything, I hope we'll find the time for that next week!

4. The displays



800 displays have arrived at Global Components - 230 have been killed by the delivery service (by crushing a box against a wall...)
These will be replaced, of course - and I've asked them whether I could order 500 more... so maybe it's good that this happens ;)

The will be here in time, no worries. We'll need quite a bit of time to assemble the units (a new mass production will always take some time to speed up), and until then, the displays will be here.

5. Quick summary



Pheeww. So, CPU Board should be fixed now. Motherboard and Display board are done as well.
Keymat is finished, just the DPad needs a tiny fix.
Cases are finished except for the wiggling stylus and the too-hard-to-open battery cover.
Displays are finished, touchscreens are perfect.

All electronic parts needed for the mass production are already lying around at Global Components.

We've gotten a LOT closer to the finished Pyra now.
Now I'm hoping for the next case revision and the prototypes... yay!

#pyra #pyra-handheld #handheld #computer #gaming #hardware #linux

With full steam into the new year!

Whew, a LOT has happened during the last 10 days!
Mostly good news... so let's start right away!

1. CPU Board Redesign

As you know, Nikolaus worked...
 
OffGrid Solar Powered Workstation (Open Source Hardware)

This article is about finding out: What low-power PC with decent performance is best suitable for solar-powered (12v would be nice) Off-Grid-computing while respecting your privacy in an FSF-kind?



i have to admit… i am still in the progress… no finished dito-results, sorry.

But very interesting boards were found, Open Source Hardware is kickstarting!!!

Recommendations:



„Given the current situation, there is no ideal device available that would satisfy all the requirements to fully respect users‘ freedom: hardware freedom is missing and most firmwares, modem operating systems and bootroms are non-free. However, it is possible to choose a device that runs with free bootloaders and a free mobile operating system: Replicant, as well as free applications.

Privacy/security cannot be reliably achieved, but it is possible to get close to it by choosing a device that is not proven to have bad modem isolation, provides a reliable way of deactivating the modem or doesn’t feature any modem at all, in addition to running software that is as free as possible and following some general good advice.“

src: http://www.replicant.us/freedom-privacy-security-issues.php

Can the Raspberry be a „full PC with EXTEME Powersavings“?



maybe yes. but it needs a large binary GPU blop to boot – not OpenSource, not transparent possibly endangering your privacy.




I hope so… i would like to operate it with solar-panels and a 12V Battery! Off-Grid computing! That is why this matters!

DargonBox Pyra






Also interesting:



https://pyra-handheld.com/

Debian?



Immagine/foto

not directly. shittt 😀

Why Richard Stallman would never buy: „The Raspberry Pi boots from its GPU and only non-free software is currently available for the GPU, even starting the machine requires a large (2MB) blob of non-free, unsupportable software“

„Generally, your best bet is to use Raspbian – which is (mostly) Debian armhf rebuilt by members of Debian for the RPi’s ARMv6+VFP2 ARM variant. Raspbian releases usually follow the corresponding Debian release but do deviate in a handful of cases for various reasons.

Be aware that the Raspbian images distributed by the Raspberry Pi Foundation contain additional packages supplied by them including updated versions of some software and the addition of non-free software including Oracle Java and Wolfram Mathematica.“

src: https://wiki.debian.org/RaspberryPi

https://perens.com/blog/2016/04/07/installing-the-native-debian-armhf-architecture-on-raspberry-pi-3-instead-of-raspbian/

The Power – where from?



„The built-in Wireless LAN and Bluetooth and the more powerful processor mean that the Raspberry Pi 3 draws about twice the current of its predecessor when under heavy CPU load (750mA vs 360mA).

Official Powersupply: 5v \* 2A = 10Watts „it’ll keep feeding your Pi the steady 2A it needs for proper performance.“

Unfortunately – it seems like – the Raspberry Pi can not be powered by simply plugin it’s power to a PC’s USB-Port.

„The Raspberry Pi can function on lower current power supplies e.g. 5V @ 1A. However, any excessive use of the USB ports or even heavy CPU/GPU loading can cause the voltage to drop, and instability during use. The latest versions of the Raspberry Pi B+/A+/2 have a “low voltage indicator icon” to notify the user if there is a problem with the power.



If you apply power to the USB port when you Pi is off, it will not boot. However, if you apply power to your Pi via one of the standard methods (e.g. the micro USB port), then apply power to USB ports and remove the original supply, it will stay on and functional.

It should be noted that USB ports have a current limit of 500mA, so we would not recommend you attempt to supply more than this via the USB!“

https://www.modmypi.com/blog/how-do-i-power-my-raspberry-pi

Immagine/foto Immagine/foto

src: https://raspberrypi.stackexchange.com/questions/43285/raspberry-pi-3-vs-pi-2-power-consumption-and-heat-dissipation

https://www.raspberrypi.org/magpi/raspberry-pi-3-specs-benchmarks/

„Updated following the release of the model B+, A+, Pi 2 Model B, and Pi Zero. According to measurements by Alex Eames [1][2][3][4]“

``` B with keyboard = 1.89 W -> daily 45 Wh
B+ with keyboard = 1.21 W -> daily 29 Wh
B+ with LAN/USB chip off (no i/o except GPIO) = 0.76 W -> daily 18.2 Wh
B+ shut down = 0.26 W -> daily 6.2 Wh
A idle = 0.7 W -> daily 17 Wh
A+ idle = 0.52 W -> daily 12.5 Wh
Pi2 B at idle = 1.15 W -> daily 28 Wh
Pi Zero at idle = 0.51 W -> daily 12.2 Wh

```„The Zero, A+ and B+ really offer huge improvements in the power circuitry. Wow!“

src: https://raspberrypi.stackexchange.com/questions/5033/how-much-energy-does-the-raspberry-pi-consume-in-a-day

Yeah u guys gonna hate me:

What i really like about JavaScript: It is ALWAYS OpenSource 🙂



and you can produce nice web-based (hardware independent) graphical outputs right on the screen…

but JavaScript is TOO SLOW!



We need more a C-kind of thing, lightweight, client-browser-sandboxed and secure scripting capabilities.

really!

some people like to load a lot of JavaScript on their sites. Combine that with massive not-downscaled pictures of 8MByte and you get a website that crashes every modern IPhone.

so it is really no wonder that a 64Bit-QuadCore, 1GByte embedded System like the Raspberry Pi has it’s problems with: JavaScript

„One of my biggest gripes was how slowly JavaScript-heavy websites loaded, when using both the Epiphany and Iceweasel web browsers. Given JS is so common in modern web sites and services this proved to be problematic.“

src: http://www.techrepublic.com/article/five-tips-for-getting-the-most-out-of-a-raspberry-pi-3-as-a-pc/

So you definitely want to use some light-weight linux like TinyCore Linux (12MByte) and https://noscript.net/

Youtube works! Firefox works! Opera works! 🙂





https://noscript.net/

Next thing: What about Startup of Applications?



„LibreOffice works extremely well taking only 9 seconds to boot with the Raspberry Pi 2.“

src: http://www.techrepublic.com/article/five-tips-for-getting-the-most-out-of-a-raspberry-pi-3-as-a-pc/

Raspi Pros and Cons from an Open Source FSF perspective:



Pros:
  • Large and active community
  • Low price for the capabilities offered
Cons:
  • The Raspberry Pi 1’s processor falls uncomfortably between the processor families that Debian has chosen to target. While Raspbian solves this to some degree an unofficial port will always give less certainty than an official one. (This doesn‘ stand anymore for the Raspberry Pi 2)
  • 3D acceleration is not integrated with X or other standard mechanisms and the Raspberry Pi Foundation don’t seem to show any interest in doing so. Therefore 3D applications will require Pi specific builds.
  • A binary blob used by the GPU must be present on the SD card for the system to boot.
  • While some hardware documentation has been released the documentation is sorely lacking.
  • While schematics are available the board design is closed and the main processor is not available for purchase by the general public.

EOMA68 – crowd funded OpenHardware project:



„The project is being developed by Luke Kenneth Casson Leighton of Rhombus-Tech and is sponsored by Christopher Waid of ThinkPenguin, a company that sells multiple RYF-certified hardware products. It is exciting to see passionate free software advocates in our community working with OEMs to produce a computer hardware product capable of achieving RYF certification. We hope that this is the first of many computing systems they are able to design and build that respect your freedom.

The Libre Tea Computer Card is built with an Allwinner A20 dual core processor configured to use the main CPU for graphics; it has 2 GB of RAM and 8 GB of NAND Flash; and it will come pre-installed with Parabola GNU/Linux-libre, an FSF-endorsed fully-free operating system.“NEWS and PROGRESS

https://archive.fosdem.org/2016/schedule/event/why_libre_hardware/

https://liliputing.com/2016/01/interview-with-eoma68-libre-laptop-developer-luke-kenneth-casson-leighton.html

http://elinux.org/images/9/9e/Eoma68.pdf





https://wiki.debian.org/OpenSourceHardware

https://www.facebook.com/luke.k.leighton A number of similar boards are available, generally at slightly higher prices but also usually with more powerful processors. Some examples are given below, more can be found in the FreedomBox targetted hardware list.

Immagine/foto

also check out: http://www.hardkernel.com/main/
  • ODROID-C1 Amlogic S805 (4× Cortex-A5 @ 1.5 GHz, Mali-450), $35 (most directly Pi-alike)
    • The ODROID-C2 is a 64-bit quad-core single board computer(SBC) that is one of the most cost-effective 64bit development boards available in the ARM world. It can function as a home theater set-top box, a general purpose computer for web browsing, gaming and socializing, a compact tool for college or office work, a prototyping device for hardware tinkering, a controller for home automation, a workstation for software development, and much more.Some of the modern operating systems that run on the ODROID-C2 are Ubuntu, Android, ARCHLinux, Debian, with thousands of free open-source software packages available. The ODROID-C2 is an ARM device — the most advanced architecture for mobile devices and embedded 64-bit computing. The ARM processor’s small size, reduced complexity and low power consumption makes it very suitable for miniaturized devices such as wearables and embedded controllers.
    • \* Amlogic ARM® Cortex®-A53(ARMv8) 1.5Ghz quad core CPUs
      \* Mali™-450 GPU (3 Pixel-processors + 2 Vertex shader processors)
      * 2Gbyte DDR3 SDRAM
      \* Gigabit Ethernet
      \* HDMI 2.0 4K/60Hz display
      \* H.265 4K/60FPS and H.264 4K/30FPS capable VPU
      \* 40pin GPIOs + 7pin I2S
      \* eMMC5.0 HS400 Flash Storage slot / UHS-1 SDR50 MicroSD Card slot
      \* USB 2.0 Host x 4, USB OTG x 1 (power + data capable)
      \* Infrared(IR) Receiver
      \* Ubuntu 16.04 or Android 5.1 Lollipop based on Kernel 3.14LTS
    • Getting started: [url=http://odroid.com/dokuwiki/doku.php]http://odroid.com/dokuwiki/doku.php[/url]
    • STORE in Local : check it HERE
  • Cubieboard Allwinner A10 (Cortex A8, Mali400), $49
  • Banana Pi Allwinner A20 1GHz ARM Cortex-A7 Dual-Core, Pi-like improved, $45
  • Olimex OLinuxIno WIFI Cortex A8, €55
  • EOMA68 modules (Sampling March 2013, so not in full production yet), Allwinner A10 (Cortex A8, Mali400)
  • Beaglebone black omap3, $45
  • OlinuxIno Mini imx233 (ARM926, i.e Debian armel), €35
src: https://wiki.debian.org/RaspberryPi

Promising



Upcoming devices looking promising, but not yet available for general sale. \#raspberry #hardware #linux #raspberrypi #pi #embedded #energy #lowpower #computing #offgrid #solar #12v #alternatives #javascript #fsf #OpenHardware #privacy #openhardware
Originally posted at: http://dwaves.de/2016/11/05/offgrid-solar-powered-workstation-open-source-hardware/http://dwaves.de/2016/11/05/offgrid-solar-powered-workstation-open-source-hardware/
 

Back from the Dead!



Go to the original news post

Well, I'm back! Not from the dead, but as I didn't really visit the boards or IRC a lot lately. I might've felt to some like I was dead.

I'm doing fine, no worries. But the shop was swamped with orders until two days ago (I was packing and shipping 40 - 100 orders per day!) that I didn't find the time for much else.

Thankfully, things are back to normal again, so here I am! And I brought some news with me, as things have not stopped in Pyra development.

1. The SATA-Adaptor



Not everyone is interested in one, I guess, but the SATA-Adaptor has mostly been finished. It plugs into the USB-Port of the Pyra and splits the signal to both USB 2.0 and SATA. Keep in mind that it's only for the Pyra.

I'll create a small case for it which you can either print yourself or maybe I'll do an injection mould plastic of it as well (depends on the demand and costs).





2. JTAG



There's no direct JTAG connection on the Pyra PCBs (we didn't have enough space), but the SD-Card slot can be used for it! All you need to do is boot a special kernel and use this simple SD-to-JTAG-Adaptor.




This is helpful for everyone who wants to do some low-level hardware debugging.

3. The CPU-Board fixes



Nikolaus has used the last few days to vastly improve the VIA- and capacitor-setups on the CPU-Board. He's rechecking it currently to make sure it's the best we can achieve with the current layout. After that, as mentioned in the last post, it will be sent to a community member who can run a simulation on it which will show us the improvements and make sure it's good enough for the full 1,5GHz speed.

4. And the rest...?



Well, all companies involved in the Pyra production had holidays, and like most companies here, they'll resume work on Monday.

Then I'll bugger them all to move ahead with full speed, and of course I'll keep you informed.

Oh, and by the way: A happy New Year 2017 :) May our journey finally bring us to the finish line :)

#pyra #pyra-handheld #handheld #hardware

Back from the Dead!

Well, I'm back! Not from the dead, but as I didn't really visit the boards or IRC a lot lately. I might've felt to some like I was dead.

I'm doing...
 

Back from the Dead!



Go to the original news post

Well, I'm back! Not from the dead, but as I didn't really visit the boards or IRC a lot lately. I might've felt to some like I was dead.

I'm doing fine, no worries. But the shop was swamped with orders until two days ago (I was packing and shipping 40 - 100 orders per day!) that I didn't find the time for much else.

Thankfully, things are back to normal again, so here I am! And I brought some news with me, as things have not stopped in Pyra development.

1. The SATA-Adaptor



Not everyone is interested in one, I guess, but the SATA-Adaptor has mostly been finished. It plugs into the USB-Port of the Pyra and splits the signal to both USB 2.0 and SATA. Keep in mind that it's only for the Pyra.

I'll create a small case for it which you can either print yourself or maybe I'll do an injection mould plastic of it as well (depends on the demand and costs).





2. JTAG



There's no direct JTAG connection on the Pyra PCBs (we didn't have enough space), but the SD-Card slot can be used for it! All you need to do is boot a special kernel and use this simple SD-to-JTAG-Adaptor.




This is helpful for everyone who wants to do some low-level hardware debugging.

3. The CPU-Board fixes



Nikolaus has used the last few days to vastly improve the VIA- and capacitor-setups on the CPU-Board. He's rechecking it currently to make sure it's the best we can achieve with the current layout. After that, as mentioned in the last post, it will be sent to a community member who can run a simulation on it which will show us the improvements and make sure it's good enough for the full 1,5GHz speed.

4. And the rest...?



Well, all companies involved in the Pyra production had holidays, and like most companies here, they'll resume work on Monday.

Then I'll bugger them all to move ahead with full speed, and of course I'll keep you informed.

Oh, and by the way: A happy New Year 2017 :) May our journey finally bring us to the finish line :)

#pyra #pyra-handheld #handheld #hardware

Back from the Dead!

Well, I'm back! Not from the dead, but as I didn't really visit the boards or IRC a lot lately. I might've felt to some like I was dead.

I'm doing...
 
A partir de este artículo y durante algunos más me dedicaré a repasar los elementos de “hardware” cuyo control es imprescindible para obtener nuestra ambicionada fotografía “de calidad”. No son demasiados si somos estrictos en cuanto a su importancia. En cualquier caso, la cantidad de cachivaches y adminículos que constituyen esta cara afición podría extender esta “serie dentro de la serie” hasta el infinito. Así que vamos a centrarnos en lo imprescindible: sensor, objetivo y cuerpo de la cámara.

#colaboratorio #enero #jen0f0nte #multimedia #fotografía #cámara #hardware #flachttps://colaboratorio.net/jen0f0nte/multimedia/fotografia/2017/flac-el-sensor-fotografico/
 
A partir de este artículo y durante algunos más me dedicaré a repasar los elementos de “hardware” cuyo control es imprescindible para obtener nuestra ambicionada fotografía “de calidad”. No son demasiados si somos estrictos en cuanto a su importancia. En cualquier caso, la cantidad de cachivaches y adminículos que constituyen esta cara afición podría extender esta “serie dentro de la serie” hasta el infinito. Así que vamos a centrarnos en lo imprescindible: sensor, objetivo y cuerpo de la cámara.

#colaboratorio #enero #jen0f0nte #multimedia #fotografía #cámara #hardware #flachttps://colaboratorio.net/jen0f0nte/multimedia/fotografia/2017/flac-el-sensor-fotografico/
 
Immagine/foto

Infrarot-löten / -entlöten mit einer 100W-Halogen-Lampe



Achtung Arbeiten mit Netzspannung und Verletzungsgefahr: Nicht ins direkte oder reflektierende Licht schauen - unbedingt eine Schweißerbrille benutzen! Sonnenbrille reicht nicht! Vorsicht auch mit der Hitze! Ich übernehme keine Verantwortung für irgendwelche gesundheitlichen oder materiellen Schäden!

Mein erster Versuch war mit einer Rotlichtlampe (für Rückenschmerzen etc.) und einer Linse. Das hat nicht funktioniert: der Durchmesser dieser Lampen ist zu groß, die Wärme zu breit verteilt und ich konnte keine passende Linse zum Fokussieren finden.

Eine Infrarotlötstation gibt es ab 200-300€. Bei der Suche nach Modellen ist mir aufgefallen, dass es auch eine Ersatzlampe gibt: diese sieht aus wie eiene Standard-Halogenlampen mit Reflektor, bis auf den IR-Filter. Die Daten sind 12V 100W, für Stiftsockel. Ich war überrascht, dass 100W reichen können. Und warum ein extra Gerät kaufen, wenn man sich mit einfachen Mitteln etwas Physik zunutze machen kann? :) Ein entscheidender Punkt ist, dass Lampe und Reflektor bei Halogenlampen sehr klein sind - also viel Hitze auf kleinem Raum. Bei anderen DIY-Projekten habe ich Baustrahler in Aktion gesehen. Ich möchte aber etwas kompaktes, evtl. auch zum in der Hand halten. 12V erschienen mir unpraktisch, da ich kein Netzteil/Trafo mit fast 10A habe. Also habe ich mich auf die Suche gemacht nach einer 100W 230V Halogenlampe im GU10-Sockel. Auf den Infrarotfilter kann man verzichten, denn rund 92% der abgegebenen Energie bei Glühlampen ist sowieso Wärme = Infrarotstrahlung. Das ganze hat auf Anhieb so gut funktioniert, eine Sammellinse ist nicht mal nötig. Die Wärme wird etwas großflächiger verteilt als bei IR-Lötstationen mit Fokussierung, stört mich aber nicht.

Alles was man braucht: * Schweißerbrille (das Licht ist dermaßen grell, man sieht durch die gut was man lötet) * 100W Halogenlampe in GU-10-Bauform, bzw. wichtig ist ein kleiner Reflektor, ich habe diese benutzt: "OMNILUX GU-10 230V/100W 600h 25°" * evlt. Adapter von GU-10-Sockel auf E27-Gewinde * eine Tischlampe mit E27-Fassung oder eine E27-Fassung zum in der Hand halten

Materialkosten ca. 15€.

Auf dass Wissen frei verfügbar ist und Technik für konstruktive Dinge genutzt wird.

Video:

#elektronik #electronics #hacks #hardware #hardwarehacks #soldering #desolder #desoldering #ir #infrared #diy #seamoansprojects
 
Immagine/foto

Infrarot-löten / -entlöten mit einer 100W-Halogen-Lampe



Achtung Arbeiten mit Netzspannung und Verletzungsgefahr: Nicht ins direkte oder reflektierende Licht schauen - unbedingt eine Schweißerbrille benutzen! Sonnenbrille reicht nicht! Vorsicht auch mit der Hitze! Ich übernehme keine Verantwortung für irgendwelche gesundheitlichen oder materiellen Schäden!

Mein erster Versuch war mit einer Rotlichtlampe (für Rückenschmerzen etc.) und einer Linse. Das hat nicht funktioniert: der Durchmesser dieser Lampen ist zu groß, die Wärme zu breit verteilt und ich konnte keine passende Linse zum Fokussieren finden.

Eine Infrarotlötstation gibt es ab 200-300€. Bei der Suche nach Modellen ist mir aufgefallen, dass es auch eine Ersatzlampe gibt: diese sieht aus wie eiene Standard-Halogenlampen mit Reflektor, bis auf den IR-Filter. Die Daten sind 12V 100W, für Stiftsockel. Ich war überrascht, dass 100W reichen können. Und warum ein extra Gerät kaufen, wenn man sich mit einfachen Mitteln etwas Physik zunutze machen kann? :) Ein entscheidender Punkt ist, dass Lampe und Reflektor bei Halogenlampen sehr klein sind - also viel Hitze auf kleinem Raum. Bei anderen DIY-Projekten habe ich Baustrahler in Aktion gesehen. Ich möchte aber etwas kompaktes, evtl. auch zum in der Hand halten. 12V erschienen mir unpraktisch, da ich kein Netzteil/Trafo mit fast 10A habe. Also habe ich mich auf die Suche gemacht nach einer 100W 230V Halogenlampe im GU10-Sockel. Auf den Infrarotfilter kann man verzichten, denn rund 92% der abgegebenen Energie bei Glühlampen ist sowieso Wärme = Infrarotstrahlung. Das ganze hat auf Anhieb so gut funktioniert, eine Sammellinse ist nicht mal nötig. Die Wärme wird etwas großflächiger verteilt als bei IR-Lötstationen mit Fokussierung, stört mich aber nicht.

Alles was man braucht: * Schweißerbrille (das Licht ist dermaßen grell, man sieht durch die gut was man lötet) * 100W Halogenlampe in GU-10-Bauform, bzw. wichtig ist ein kleiner Reflektor, ich habe diese benutzt: "OMNILUX GU-10 230V/100W 600h 25°" * evlt. Adapter von GU-10-Sockel auf E27-Gewinde * eine Tischlampe mit E27-Fassung oder eine E27-Fassung zum in der Hand halten

Materialkosten ca. 15€.

Auf dass Wissen frei verfügbar ist und Technik für konstruktive Dinge genutzt wird.

Video:

#elektronik #electronics #hacks #hardware #hardwarehacks #soldering #desolder #desoldering #ir #infrared #diy #seamoansprojects
 

#Pyra - Latest case revision



This #youtube #video shows the latest revision of the case of the #pyra-handheld



If you want to learn more about the #Dragonbox Pyra click here

#handheld #news #hardware

The Pyra

 

#Pyra #Prototype mainboards coming soon



go to the original news post

My normal daytime job is still giving me a lot of work... I had to edit 3 commercials and one cooking show last week, so combined with the daily shippings in my shop, I didn't have much time for anything else.

Of course, that doesn't mean nothing has happened, as there are other people working on the #Pyra :)

1. The mainboards



The bare prototype mainboards (which most likely won't be different from the production run mainboards) will arrive at Global Components December 12th and will be populated shortly after (like the CPU boards, 30 in number).

As soon as we have the cases and the keymats for those, we can assemble them for devs, Pyra preorderers and the remaining ones will be auctioned so anyone can get them (yes, the vouchers for the Pyra can be used to get one of those if you like). These will clearly be marked being prototypes, so they might be of some value to you :)

Speaking of keymats and cases...

2. The keymats



I received some inbetween sample of the keymat, but it was a bit rushed (as they wanted to finish it as fast as possible) and in my opinion, it was way too stiff. I told them to hurry but not rush. It's more important to get perfectly working samples one or two weeks later instead of imperfect ones as fast as possible.

The good thing is, once they're working perfectly, mass production of them won't take long and can be done within a few weeks.

I'll keep you posted. This won't prevent me from building a new prototype though, as the look of the keymat won't change, only the stiffness and feel of it.

3. The cases



According to UPS tracking, a sample of the new case including the sealing for the speakers has been shipped November 28th and will arrive tomorrow until the evening.

Let's hope everything will be fine now - but we won't find that out until tomorrow or Tuesday (depending whether UPS will keep their time :)) Of course you can expect some highres pictures of those - but don't expect them to LOOK perfect, as the moulds won't be hardened before everything is 100% okay physically (and therefore you will probably see a few discolorations in there).

Once the new mainboards are finished, I can finally built a prototype that works perfectly fine using a battery, as these will have the battery connectors in the proper position (running it with battery was a bit of hit and miss before).

UPDATE (did I mention I had too much work? I almost forgot this:)

4. The CPU boards



Nikolaus has been done countless tests (also huge thanks to notaz for a NEON-Stresstest-tool) to rule out different possibilities why the CPU boards could fail running higher than 1,2GHz. It could've been the RAM, the clock itself, power source, software settings, etc.

With these tests we could slowly rule out various issues. The RAM is fine, the power source is fine, so what we're most likely missing are some more decoupling capacitors. So there's a very good change the next CPU boards will work fine. I'll let you know once I get more details.

Exciting times :)

#pyra-handheld #hardware #linux #hardware #handheld #debian #news

Prototype mainboards coming soon

My normal daytime job is still giving me a lot of work... I had to edit 3 commercials and one cooking show last week, so combined with the daily...
 
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