Hi @quietlife4me2,
I was able to reproduce something that I think is similar to your issue; sometimes the hardware I2C on the pico can lock up when an address isn’t found (see Raspberry Pi’s note on page 17). I wasn’t able to communicate with the Notecard until I reset the rpi pico. The mpy_example.py works for me out of the box when setting use_uart=False and connecting the SCL to GP7 and SDA to GP6 (for I2C1).
Let me know if you’ve been able to resolve this,
Thanks,
Alex
