Here is what I get out of the doc. You need to send the controller
a command and it will send you a response. If you want to get the
Battery voltage you need to send it
5B 04 39 00 00 98
If the battery voltage is 48v it should send you back.
5B 04 39 01 D4 plus some unknown hex value (the next byte in memory)
and a checksum. O1 D4 is the voltage reading. That is .1025 volts
per bit so 48/.1025 ~ 468 decimal or 1D4 hex.
That mostly makes sense and it was sorta what I thought. I'm going
to give it a go later today I hope.
Thanks Damon!
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