dogman dan wrote: ↑
Dec 19, 2017 10:15 am
One wire on the controller, most likely the green one, is negative. The other two should be 5v positive.
At the brake handle, each handle needs the negative, and one of the 5v positive wires
use a voltmeter to figure out which wires are positive.
As noted in earlier post: OP's answer is 'yes'.
But - 'No!' to DD's post which can get you into trouble.
There are three wires:
- ebrake signal wire (appears to have +5V on it)
- optional +5V power used for hall sensor ebrakes only.
You must use (1) Gnd and (2) the signal wire on the ebrake end *NOT* just 'any' wire that reads +5V.
- If you mistakenly connect (1) Gnd and (3) the +5V power lead to your ebrakes, you will short the controller 5V regulator when you apply the brakes. The bike will certainly stop but for an entirely different reason than intended....
If your wire colors are completely indecipherable, connect in turn each of the two '5V' wires to Gnd using a 1K to 10K resistor in series with your DMM set on 10ma (or thereabouts). The wire with the lowest current reading is the signal wire. (Don't forget to reset DMM function to something other than 'ma' when done of you will blow an internal DMM fuse next time you try to measure volts