Raspberry Pi Zero W Test Controller - OpenSCAD

thingiverse

We've set up multiple test rigs and it's really handy to have a standardized approach for reusing Raspberry Pis as test controllers for these rigs. So we chose a Raspberry Pi Zero, but with an Adafruit 128x64 1.3' OLED Bonnet as the user interface, exposing the GPIOs at the bottom so it can be easily slotted into a test rig. We also designed a custom 3D printed case for this test controller, making it easy to slot into various test rigs. The test rig will provide power for the Raspberry Pi Zero. A key design decision was the need for a custom 3D printed case. Most cases assume that the header is exposed at the top, and we also wanted parts that snap together and stand up on the test rig, withstanding user pressure on the OLED bonnet buttons and joystick. ## Get these parts Print these three parts: * RPI_Zero_W_Test_Controller_Top.stl * RPI_Zero_W_Test_Controller_Bottom.stl * Board_Clip_Compact_long.stl * Board_Clip_Compact_stub.stl You'll need: * Adafruit 128x64 1.3' OLED Bonnet (Used for displaying test status) * Stackable Header for Raspberry Pi (Jaycar Product ID: HM3228) (17mm socket, 20mm pin depth ) * Raspberry Pi Zero W * A preconfigured SD card (Make it yourself for each test) * A test rig (depends on the problem) ## Construction Step 1. Solder the stackable header to the bottom of the raspberry pi Zero. 2. Slot RPI_Zero_W_Test_Controller_Top to the top of the raspberry pi zero. 3. Slot in the Adafruit 128x64 1.3' OLED Bonnet to the top. Do not solder it down (If the screen breaks, you want to be able to replace it). 4. Place the RPI_Zero_W_Test_Controller_Bottom at the bottom of the raspberry pi Zero. 5. Push the retaining board clips to the bottom of the raspberry pi zero. Long for the front, stub for the back. 6. Load in a preconfigured SD card. 7. Slot into test rig.