Can't read battery voltage

Can't read battery voltage
« on: May 31, 2018, 04:54:14 PM »
I have a TinyScreen+

I am reading the ADC line A4 (thats what appears to be wired up in the schematic), but I am getting a bunch of random values.

Is there any particular trick to obtaining the voltage?

Re: Can't read battery voltage
« Reply #1 on: June 04, 2018, 09:30:34 AM »
Looks like with the "Plus" version you can only know if it is charging or not..
I'm waiting for a reply on this topic to know more about the options left: