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Old 04-24-2017, 11:16 AM   #1 (permalink)
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EV CAN Battery Monitor

Here is a little project I'm working on. I cannot find a nice robust battery monitor so decided to have a go at my own. Sensor board is based on an Atmega328 and an ADS1115 16 bit ADC in differential mode. Reads voltage from 0-500v and current from -600 to +600A and temperature via a thermistor. Transmits via CAN and bluetooth.

All files on my github:

Software is only bare bones with no checking for valid CAN IDs etc but it does work. Struggling a bit with the amp hour calculations.

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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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