Logging tool for SkyRC iMAX B6 Mini (and possibly similar) chargers
This tool can monitor and log data from Chinese 4-button battery chargers that come with a USB port.
Right now, only SkyRC’s iMAX B6 Mini charger is supported, but it’s very possible that many other, similar chargers use the same HID-based protocol.
Compilation
This needs libudev.
cc b6mon.c -o b6mon $(pkg-config --cflags --libs libudev) -lm
Usage
This tool needs write access to the USB device, so either run as root or set up access through udev rules.
b6mon -[p|s]
| Option | Effect |
|---|---|
| -p | Monitor process status until end of process. |
| -s | Continuously monitor system status (cell voltage only) |
To do (aka patches welcome)
- Reverse engineer the rest of the protocol (config, maybe fw update)
- Support more chargers (e.g. those that can charge 8 cell batteries)
Tips
Live plotting with gnuplot
Start logging:
b6mon -p > process.log
Run gnuplot (sample file included):
gnuplot process.plt
Example:
License
This software is available under the terms of the ISC license.