SUPPORTS UART/CAN PROTOCOL This e-bike display is designed for Bafang M500 M600 BBS01 02 HD Motor DZ41 and supports both UART and CAN protocols.The UART protocol is engines such as BBS01 02 03 HD G320 G340 M615 M620 G510 M400 G330, while the CAN protocol is engines such as M200 M300 M400 M420 M420 M422.0 0 Suitable for engines such as 500 M300 M400 M420 M420 M422.