PTL-ino

The PTL-ino (“petilino”) is a *uino-compatbile board that is fully made of easily solderable through-hole components.

• https://github.com/PostTenebrasLab/PTL-ino/

• alpha 1
• version 1 leman make juin 2015
• version 2 (still in beta)

How to build a PTL-ino board from the kit:

• PDF
• HTML (en)
• HTML (fr)
• ASCII Doc fr

To develop for the PTL-ino, you can use the same tools as for the Arduino UNO. You can find the download for the Mac/PC/Linux version here

After Installing the Arduino software, add our PTL-ino board with the board manager. To do that, simply configure in Arduino Preferences the Additional Board Manager URL :

https://www.posttenebraslab.ch/wiki/_media/projects/electronics/ptl-ino/package_posttenebraslab_index.json

Then, go in the Tools menu, and in Boards sub-menu you can find the Boards Manager. Look for Post Tenebras Lab Boards and install the package.

curl -o isrgrootx1.pem https://letsencrypt.org/certs/isrgrootx1.pem
curl -o letsencryptauthorityx1.der https://letsencrypt.org/certs/letsencryptauthorityx1.der
sudo keytool -trustcacerts -keystore '/Applications/Arduino 1.6.8.app/Contents/PlugIns/JavaAppletPlugin.plugin/Contents/Home/lib/security/cacerts' -storepass changeit -noprompt -importcert -alias letsencryptauthorityx1 -file ./letsencryptauthorityx1.der
sudo keytool -trustcacerts -keystore '/Applications/Arduino 1.6.8.app/Contents/PlugIns/JavaAppletPlugin.plugin/Contents/Home/lib/security/cacerts' -storepass changeit -noprompt -importcert -alias isrgrootx1 -file ./isrgrootx1.pem

More information are available in a nice tutorial made by Adafruit.

Windows version before Windows 10, didn't recognise USB-CDC serial device natively like Mac OS X and Linux.
So in order to make PTL-ino works on Windows 8 or below, you have to install this driver file before you plug the board on the PC.
To install, simply download the INF file, uncompress it, and do a right-click –> install.
A warning message will be displayed, but choose to install it anyway (we don't have the money to have the driver certified by Microsoft…)

Using Fritzing fast prototyping can be done: The component can be retrieved from our GitHub

More info here

A laser cut acrylic case

V0.1 was done in Inkscape based on the export of the KiCad silkscreen.
Production file (zipped eps): case-v0.1.zip (was sent to https://www.seeedstudio.com for fabrication)
This version has a few shortcomings that were addressed in the following update:

• the filled areas of the EPS could not be produced, it was decided to go for the outline
• between connectors, the plastic did not fit well (they were removed, see pink marks below)
• the case should be slightly larger than the PCB
• holes and cut-outs may have more margin

Now, designed in LibreCAD: Design file (zipped dxf, not yet prototyped): case-v0.2.zip

To flash the bootloader, it is simpler to install the PTL-ino board through the board manager. The firmware for the bootloader is the same as the Arduino Uno, only the fuse are different.
Fuse settings: LOW: 0xC0; HIGH: 0xDE; EXTENDED: 0x05; LOCKBIT: 0xFF