using the ADC in OrangePi 2G-IOT

danoz · Published in 2017-7-28 20:36:10

I am powering the orange pi 2G-IOT with a LiPo battery.
I would like to identify when the USB power (OTG) is unplugged and the board switches to battery supply.

I see in the schematics that sampling (voltage divider) of the USB power goes into ADC (analog to digital converter) in the RDA8810. this is line "AC_DIV_IN" in the schematic.
how can I read the ADC value? do you know of C/python code?

thanks!

surfero75 · Published in 2017-9-11 18:58:14

Have you solved this problen? Thanks

mkgokp7s · Published in 2020-3-26 23:03:13

Oh, an analog input by ADC, that would be great. I'm also interested in an solution!

giviflor30 · Published in 2020-3-31 11:29:12

Subway Surfers - You have brought up a very superb points , regards for the post.