Hi,
I have been playing with the latest version of micropython on the nrf52840 USB dongle. The temperature over bluetooth example works perfectly for me (as a proof that micropython is properly flashed on the board).
I wanted to try and read some values from the ADC pins. I wired the pin 0.29 to a potentiometer, and initialized an ADC object:
from machine import ADC
adc = ADC(5)
adc.value()
However, I could only get values between 0 and 255 (0 when the potentiometer was turned to the minimum, 255 when turned to the maximum). This obviously means the ADC has an 8-bits resolution
The specs of the board tell us we can use 8, 10, 12 and even 14 bits of resolution (with oversampling): https://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.0.pdf
I wasn't able to find a method in the ADC class to set the resolution of the ADC. Is it possible in the current state of micropython for the nrf boards?
Hi,
I have been playing with the latest version of micropython on the nrf52840 USB dongle. The temperature over bluetooth example works perfectly for me (as a proof that micropython is properly flashed on the board).
I wanted to try and read some values from the ADC pins. I wired the pin 0.29 to a potentiometer, and initialized an ADC object:
However, I could only get values between 0 and 255 (0 when the potentiometer was turned to the minimum, 255 when turned to the maximum). This obviously means the ADC has an 8-bits resolution
The specs of the board tell us we can use 8, 10, 12 and even 14 bits of resolution (with oversampling): https://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.0.pdf
I wasn't able to find a method in the ADC class to set the resolution of the ADC. Is it possible in the current state of micropython for the nrf boards?