The rp2040 is a great chip at a decent price point.
However the internal ADC is quite bad for wide range readings. There's a few points around 512 / 1536 etc where it gets a "personality" in the readings.
AVR seems to have this down much better along with internal references for even more accuracy.
The rp2040 is a great chip at a decent price point.
However the internal ADC is quite bad for wide range readings. There's a few points around 512 / 1536 etc where it gets a "personality" in the readings.
AVR seems to have this down much better along with internal references for even more accuracy.