How to implement raspberry pi charge controller?

N

naso4ek2014-12-21 22:33:16

Raspberry Pi

naso4ek, 2014-12-21 22:33:16

Hello everyone
I want to make a mini-laptop based on raspberry pi
There is
a Li-po battery from a 3.7V tablet
Raspberry pi Model B
Raspbian
A battery charge controller based on TP4056
What needs to be implemented
Informing about battery discharge
It is desirable in the raspbian shell to have a window with the percentage of battery charge ( As on Windows laptops)

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1 answer(s)

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Armenian Radio, 2014-12-21
@naso4ek

The best way to monitor the level of a battery is to integrate its charge in coulombs. So, in principle, all "adult" controllers of real laptop batteries do.
The theory of the charge control process is an art. So it would be best to take an ordinary laptop battery, find a datasheet for its controller and implement communication with it. Usually there is an SPI protocol.