ELM327 AT Commands :
version Command Description Group
1.0 @1 display the device description General
1.3 @2 display the device identifier General
1.3 @3 cccccccccccc store the device identifier General
1.0 <CR> repeat the last command General
1.0 AL Allow Long (>7 byte) messages OBD
1.2 AR Automatic Receive OBD
1.2 AT0 Adaptive Timing Off OBD
1.2 AT1 Adaptive Timing Auto1 OBD
1.2 AT2 Adaptive Timing Auto2 OBD
1.0 BD perform a Buffer Dump OBD
1.0 BI Bypass the Initialization sequence OBD
1.2 BRD hh try Baud rate Divisor hh General
1.2 BRT hh set Baud Rate handshake Timeout General
1.0 CAF0 CAN Automatic Formatting Off CAN
1.0 CAF1 CAN Automatic Formatting On CAN
1.0 CF hh hh hh hh set the ID Filter to hhhhhhhh CAN
Complete list please check this PDF: ELM327 AT Commands
