connect 5v to ADC_VREF
Posted: Tue Jun 08, 2021 6:38 am
Hi,
Can I connect 5V voltage reference to ADC_VREF of Pi Pico ?
Can I connect 5V voltage reference to ADC_VREF of Pi Pico ?
No!!!
No signal on any IO shall be higher than the power supply of the processor, so stay under 3.3V.
If you need to convert signals their voltage are higher than 3.3V you shall use a voltage divider on those signals to reduce their voltage span to the 0 - 3.3v range