Swagbadge test jig and software & OHMC wrap-up
summary
Testing workflow for nearly 300 shipped badges focuses on concrete yields and fixes: raw OLEDs show 8.7% OLED failure rate so every display and each LoLin/Lowland board is pre-flashed and checked before assembly, reducing post-assembly rework to about 18 units. A reusable pogo-pin jig built from spare PCBs and 3D-printed guides provides reliable contacts, host-side Python (tester.py) drives MicroPython test functions, flashing takes ~52 seconds per Lowland, and unique encryption keys are written during the test pass.
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chapters (4)
- 0:00Start
- 1:29Failure Rates
- 5:05Build a Test Jig Using Bare Pcbs
- 15:40Does the Testing Stop after the First Test Failure or Does It Continue
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