Well after many hours of coding I finally have some software the simply displays the buffered values of all the batteries to .1 of a volt with less then +/- .1 volts! It’s currently refreshing at about 10 Hz but I think I can even speed that up by removing a few unnecessary delays. I still have a lot of refractoring to do on my code but things are going smoothly and there is little holding me back save my lack of time. There is still a lot to do before having a finished product. It needs to be able to sit on the evil bus and listen for its address and ignore anything else that comes its way. That way it can share the same data line with its other node friends. I also need to create the master node. The master will “call” each node in turn asking for its data. Once the node responds the master will call the next and so on in an endless loop. Can’t wait to start coding that one…. :’(
Photo 1: Here you can see the volt meter hooked to the first battery. It’s a little bit off but I don’t have the best calibration system.
Photo 2: My two boards talking evil to each other.
Photo 3: My mini EV pack for testing. Nice to have that but I will soon have a calibration setup which will do pretty much the same
thing except be safer since it will only be able to supply 60mA
