dglaude
commented
3 years ago The Led Shim code works on a "Raspberry Pi Zero W" with Blinka
The Scroll pHAT HD works both on:
- a "Raspberry Pi Zero W" with Blinka
- a "Feather RP2040" with FeatherCap v0.2 of @unfinishedstuff => https://github.com/UnfinishedStuff/FeatherCap
All my failure converge on when I am using a Pico mounted on an adaptation board (that does not have pull-up resistor). On my setup, working code with a temperature sensor (in Stemma, so with Pull-Up), it start to fail if I add the Led Shim on the 20x2 pins.
There must be a problem or incompatibility between the Led Shim and that adaptation board.
But not an issue with the code.
Recent attempt to reuse the Led Shim with the Pico failed on me with all kind of I2C related message. It could be related to some issue with the RP2040 or by problem with the Pull-Up resistor. I need rebuild the initial setup to test this with another MCU and another adaptor (Feather 2 Pi) to clear this issue.
Please close this with a comment if you successfully tested that on the hardware.