- red - 54.6 V (battery positive supply for IoT module(!), not motor supply etc.)
- yellow - CAN low
- green - CAN high
- blue - main switch
- black - 0 V (battery negative)
To start the scooter, short the blue wire with GND (black wire) and fire up the 250 kbit/s CAN bus (yellow and green).
The following messages have to be send about every 500ms to keep the scooter active. Thanks go to the logic analyzer dumps provided by @Rick Sanchez .
02181606#0100140001000000 <- motor. 3rd byte 0x14: 20 km/h max speed, 4th byte 0: kick to start, 1: thumb throttle 02203606#0101000100010000 <- display. 1st byte 0: mph, 1: km/h, 2nd byte = light (0: off, 1: on, 2: blink) 02488600#0000000000000000 <- some other required messages 02213600#
Now to my main question: where to get spare parts for ES400? I nowadays only see as a minimum of ES500 or sometimes some Segway scooters in my area...
Have fun, cheers.