If anyone wants to build some of these BMS modules, drop me a PM and I'll send you the pcb files and the software.
I'm presently using a terminal program in my laptop (running a script) to do the polling and that proves that it all works OK.
Once the master is finished, it will provide a dedicated lcd and alarm outputs, but if you don't mind craning to look at a laptop on the seat and a bit of mental arithmetic, its quite usable!
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Sometimes I sits and thinks and sometimes I just sits.
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