Howdy, long time lurker!
I was wondering if anyone could give me a hand with trying to pull data from my Harmon Absolute43 pellet stove. Looking at the board, I see an RJ45 connector and thought “seems like a wireshark-like sniffer would do the job”.
However, all searches end up looking at networking rather than simple data sniffing. Any ideas as to how to add a “bridge” that also stores the data? From there, I can do the publishing side of things, just the hardware component for me has me scratching my head.
Ah, fair enough.
Honestly it seems like the easier route, instead of trying to intercept the control boards signals, would be a thermistor/thermocouple and a direct connection to the low fuel indicator (either the input sensor, or output led. Perhaps via a photodiode like the other guy mentioned).