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Battery cell monitor and balancer

License: MIT License

Makefile 1.61% Python 29.58% C++ 67.11% C 1.70%

attiny85 avr battery-management-system bms firmware

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qxc2016 winxin dv1990 aalexantt thomasadavis simhaonline lithium-ion airatnig yeatech zzfd97 dr-vipinkumarp minhvt10

cell-monitor's Issues

Thermistor

Not sure if it makes sense to have a thermistor per cell or let the host controller handle reading a single thermistor for the whole pack.

Voltage calibration not working

Removed the voltage calibration for now: 21d121b

Was causing issues with the voltage readings for some reason. Returned voltage values would slowly decrease to some fixed point below the actual voltage. I was not sending any write requests to my knowledge. Voltage can still be calibrated manually by writing the reference voltage value.

ATTiny85 oscillator calibration

I've noticed that I occasionally do not receive a response to the SEND_VOLTAGE command when issued. Could be that the internal oscillator is not precise. There's a register to calibrate the actual value.

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