hello, I come back to you to tell you that I managed to unleash the lingbo controller, and really the citycoco SC-H3 is a real GTI and exceeds 75kmh.
reprogram of a citycoco SC-H3 to make it faster over 75kmh
Hello,
Here is a tutorial for hacking maximum top speed in firmware for electric scooter with lingbo controller
CONTROLLER:
- Brand: LINGBO
- Model: LBC006.551D.
- scooter: citycoco SC-H3
The Tools that are needed:
- USB TTL converter CH340G CP2102 PL2303 UART FTDI Arduino 5V + 3.3V
- Dupont 10P male / female Arduino cable
1-On the USB TTL converter, connect the cap on the 5V and Vcc jumper, in order to use 3.3V
2-Install the driver (CH341ser.exe) / Connect the USB TTL converter to the PC (or let the pc do it which will install the best driver)
3-Turn off the citycoco and disconnect the battery and the controller plug (30 pins)
4-Connect 4 cables between the USB TTL converter and the 30 pin connector of the controller on the scooter, as explained
Note: if all goes well, a red led on the box will flash, and the red led on the adapter will light up)
• USB TTL converter on the controller 30 pin connector
• USB 3V3: RED (3.3V) on pin no .: 29
• USB GND: BLACK (GND) on pin no .: 7
• USB Tx: WHITE (Tx) on pin no .: 23
• USB Rx: GRAY (Rx) on pin n °: 13
5-Download and run LBGUI_v121.18.0329
• Select the English language with the upper right button (little man with speech bubble)
• Select the COM port used by the USB TTL converter in the Windows device manager (ex: COM6)
• Click on the Connect button
• If connection error, "timeout" swap the Tx and Rx switching pins
• Write down the values and settings for saving in a backup. FOC file, with "Export" button
• Go and modify "Speed Limit: Func parameters setting":
"Speed limit enable" = 0: Disable
"Speed limit ratio (

" = 100% (to be modified first, then meter later on "disable")
• Write the parameters with the "Download" button and check / read with the "Download" button
• Disconnect the programmer, reconnect the multi-spindle and the battery, and test the parameters.