icboredman / juice

Linux charger and fuel gauge module for 2S LiPo battery

juice

Linux charger and fuel gauge userland driver for 2S LiPo battery.

Designed to work with "Juice Board" module attached to Khadas Edge-V SBC.

Publishes battery info as a MQTT topic.

MQTT client code uses Eclipse C++ library paho.mqtt.cpp

Notes

• Fuel Gauge IC: CW2015C
• Charger IC: BQ25703A
• Uses Linux I2C driver (ioctl, I2C_RDWR-style)
• Requires MQTT broker, such as Mosquitto
• Requires Paho C++ MQTT library installed in default location

Compiling

• cd build
• cmake ..
• make

Running

• easiest is to add link to <path>/bin/juice to /etc/rc.local file in order to launch at boot

Example

• provided example code could be used as a basis to integrate into final application