Library to parse the Victron Energy "VE.Direct" protocol and map the data to useful structs with clear units.
Can be used in conjuction with the serial library to pull battery status information from devices like the BMV 700, or solar charging data from the Victron's various MPPT solar charge controllers.
Developed using a VE.Direct to USB interface cable. Based of the VE.Direct-Protocol-3.32.pdf.
The following Device Status Messages are implemented to spec:
- MPPT
Currently only implements the "Text-mode" (read only) interface,
The VE.Direct interface includes two modes: Text-mode and the HEX-mode. The purpose of the Text-mode is to make retrieving information extremely simple. The product will periodically transmit all run-time fields. The HEX-mode allows not only to read data but also write data, for example, change settings.
Note If you are manually reading data off the Serial Port, as the given example demonstrates, data is written in 1 second intervals. If you read the buffer quicker or slower than this, you will either get incomplete or multiple sets of data.
The project has tests which can be run by usual cargo test
Additionally, there is a basic fuzzing setup for the parser which can be run easily using cargo-afl - see fuzz-target/run-fuzzer.sh
Functional and reasonably well tested. Main limitation is that not all devices are handled, only the BMV battery monitor and solar charge controllers