Hi,
May I know what is the hardware layout for measuring external voltage using SAADC? I may not be understanding the infocenter or the datasheet for setting the external reference pin
Thank you!
Hi,
May I know what is the hardware layout for measuring external voltage using SAADC? I may not be understanding the infocenter or the datasheet for setting the external reference pin
Thank you!
Hi Luke
I am guessing you are using an nRF52 series chip (If not please specify what chip you are using). The pins that can be used to measure voltage are the VDD pin, or one of the analog pins, AIN0 to AIN7.
Best regards,
Simon
Hi Luke
I am guessing you are using an nRF52 series chip (If not please specify what chip you are using). The pins that can be used to measure voltage are the VDD pin, or one of the analog pins, AIN0 to AIN7.
Best regards,
Simon
Hi Simonr
Thanks for the reply. I am using the NRF52840. When I am measuring voltage from the same power source as powering the chip, the SAADC works fine, however if I connect it to a separate power source then step down the voltage as so using a resistor divider, the SAADC digital values suddenly increases exponentially. Please advise