shNode Module for Tracer MT-5

This is a fork of xxv/tracer library for interfacing with the SainSonic Tracer series solar charge regulators.

This software is inteded to run on a raspberry pi zero. It will work on all Linuxes with rs232

The main scripts are:

status -> output formatted status of charge controller data -> output data as python string (make XML in the future?) tracer_log -> log info on power system

Work on this project will be moved to sHome umbrella project: shamanon/sNode.tracer

Physical Interface

The Tracer uses an 8P8C connector (the same physical type of connector as RJ-45 Ethernet cables, but very much not an Ethernet connection).

Pinout

Pin 1 is on the left when looking at the connector with the contacts facing forward and the wire down. See 8P8C for an example of the physical connector and location of pin 1.

1. +12V (seems to be regulated)
2. Gnd (common to both data and power)
3. +12V
4. Gnd
5. TXD (3.3V)
6. RXD (3.3V)
7. Gnd
8. Gnd

It communicates using TTL-232 at 9600 baud. TTL-232 in this context means +3.3V is 1 and 0V is 0 (not to be confused with RS-232 which would be +3.3V is 0 and -3.3V is 1).

License

All code by Shamanon is free to use.

The Python library by XXV is a bit more complete and is licensed under the LGPL v3