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  • Use Arduino to Communicate with Tracer MT5 Charge Controller

    I'm trying to read the data from a Tracer 4210a, which I gather is a BN series, which uses modbus. So far no luck, including with the Windows program "Solar Station Monitor" from EPEVER. It works just fine with the MT50 remote monitoring box though.I'm using the USB cable from here:https://www.amazon.com/Battery-Temperature-Sensor-...Has anyone figured out how to read data from these controllers?

    I've been trying your script with a Tracer 4210A, and I can't get it to work. I'm using this USB cable:https://www.amazon.com/Battery-Temperature-Sensor-...What's strange is that it doesn't work using the Windows software from EPEVER either:http://www.epsolarpv.com/en/index.php/Technical/do...Works great with my MT50 remote monitor box though. Do you (or anyone) happen to have any idea what might be wrong, or something to test?

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