Read the battery status (and show a nice graphic)?

[noonasGit]

Hello!

I love my little merlot device - getting me back in to coding (and learning a few new tricks too)..

I see the wifi part but could not see any references to battery (charging status, battery level)
Is there a place where I can poke this to make a nice battery graphic for my Papered.ink screen?

/jonas

[timendum]

I found something in this repository, but it's archived. I also agree, a function to gather and display the battery status in the library would be very useful.

[haarts]

This seems the relevant part for the battery. But it uses a deprecated function adc_power_on, that should be adc_power_acquire.
It also includes stuff that makes no sense to me like adc1_config_width(ADC_WIDTH_BIT_12); or pcf8574.digitalWrite(BATT_EN, HIGH);. There are also some magic constants that are unclear to me: (batt_adc/4095.0)*4.2).

I would love to know what that all means.

[noonasGit]

Hello there!

Anyone found more information about this?
I love my Papered.ink device (merlot).
I have made a mashup screen that has weather, todays date/month and a quote in one screen.
Still would love to see a battery status to know when to plug in it.

[elratt0r]

See here:
paperdink/paperd_ink_test#4

[danielo515]

Thanks for the link. It is a bit basic though, it just has an example. Is there any docs or example with a UI part?