BQ27421-G1: sample code for bq27421-G1 (ESP32)

Manjusha Nalawade

Prodigy 20 points

Part Number: BQ27421-G1

Hello Team,

I am using the bq27421-G1 fuel gauge with an ESP32 board programmed using the Arduino IDE.

Could you please share any sample Arduino code or library for bq27421-G1?
I am looking for a basic example that shows:

I²C initialization
Reading:
- Battery Voltage
- Average Current
- State of Charge (SOC %)

Thank you for your support.

Regards,
Manjusha

22 days ago

0 Alan Frias 22 days ago

TI__Mastermind 35175 points

Hello,

This question has been assigned within the team and will be reviewed and followed up with a application engineer when possible. In the meantime please attach any associated .log/.gg files associated with the projects

Thank you,
Alan

0 Dominik Hartl11 22 days ago

TI__Guru 66576 points

I2C programming example code is in https://www.ti.com/lit/an/slua801/slua801.pdf

Reading voltage, SOC etc. is as simple as reading two bytes from I2C. See the TRM for the I2C commands and Arduino example code for I2C read/write.

Power management

Power management forum

BQ27421-G1: sample code for bq27421-G1 (ESP32)