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BotoX / xiaomi-m365-compatible-bms

Xiaomi M365 compatible, open source firmware for ATMega328p+BQ769x0 BMS. Ninebot in proto_test branch
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Low voltage #31

Open kalski44 opened 4 years ago

kalski44 commented 4 years ago

I connected everything according description (Battery "-" is connected to "B-" on BMS, and that's all (except plug with wires for 12 cells). Bootloader and firmware is uploaded without errors. Unfortunately voltage between battery + and "P-" on BMS is only ~20V and dropping to 10V in 3 seconds. I shorted RESET with GND (as is described in trouble shots section) but it doesn't help. What can be an issue and what else can I do?

BotoX commented 4 years ago

Did you connect both temperature sensors? Also debug_print is usually the answer to "why is it not working"

kalski44 commented 4 years ago

Of course I didn't connect temperature sensors... I seen that comment in "trouble shot" section, but I didn't connect it with my issue... I spent yesterday few hours with that issue, and solution was so easy and obvious. Thank you for your help. Probably I will have some other issues (honestly speakinh I already have, but first I will try to solve myself). But I hope step by step I will finalize this project before end of quarantine ;). Thanks again.