Desk of Ladyada - Teensy Tester Redesigned to RP2040 Pico
This week we're looking to redesign our fancy 'tester brains' that we use for many of our microcontroller boards. We have three flavors of testers, the 'drop and beep' simple ones that use an Arduino / Metro as a base and do basic testing of some I2C sensor, the ones that use a Teensy 3.6 to SWD or ISP program a chip and then do a USB enumeration check, and finally the Raspi ones. We've got plenty of metros, and our stash of Raspi 3's is going fine but we've just about run out of Teensy 3.6's! Since we have a lot of microcontroller boards coming soon we wanted to make sure that we could…
The skinny
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