With USB charge port
Two Buttons: Power button and Function button
Long press power button: open the power.
Short press function button: show the TIME, TRIP, ODO, DST, VOL, CH2:00.
In the TRIP, long press Function button: single trip clear.
Short press Power button, and press function button: change the gear position.
Red: Battery positive
Black: Battery negative
White: Electric door lock
Green: Throttle signal
Blue: Meter TX signal
Yellow: Meter RX signal
Parameter settings:
Press Power botton and Function botton together,
P0=Wheel diameter setting
P1=Undervoltage setting
P2=Number of pole pairs setting
P3=Speed signal selection setting
P4=Kilometer/Mile selection setting
P5=Non-zero start/Zero start selection setting
P6=Cruise/No cruise selection setting
P7=Soft start/Hard start selection setting