I’m building an escooter (current progress)
and I’m using a VESC 100/250 with a 72v battery. So far everything is great, but I’d like to have a key switch. These seem to be relatively popular, and the voltage display is a nice perk:
However, the wiring guide seems to be more along the lines of "connect the yellow to battery positive, and the blue to the controller “switch” (negative).
I guess the idea is that it can use the positive to give you the volts and then connect it to the ground when the switch it turned, completing the circuit to let the controller turn on.
That, I don’t think though, is how the on/off on the VESC works – seems more like just an interrupted wire you’ve got to close.
Now, I can just connect the vesc’s on/off to the yellow and blue side as it does seem to act as an open/close circuit with the key, but I’m worried the voltmeter in that same pathway may be problematic. And, even should that work, I wouldn’t get voltage on the display.
Looking for advice or where I’m mistaken. Thanks!