User's Manual

HF-BL100-CU Low Energy Bluetooh（BLE 4.0）Module User Manual
Shanghai High Flying Electronics Technology Co., Ltd www.hi-flying.com - 30
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9. IntervalMin +20ms<=IntervalMax
10. Slave Latency<=4
11. connSupervision Timeout<=6 seconds
12. IntervalMax*(Slave Latency+1)*3<connSupervisionTimeout
"AT:ERP\r\n" means invalid command, query failed
4.3.6. Set Baud rate
Function：modify UART Baud rate
Effective time：effective after receiving the success feedback data
Command：
"AT:BPS-"+baud rate+<CR><LF>
Baudrate:6 character，‟0‟~‟9‟ means 0~9,”115200”-> decimal 115200
Feedback：
"AT:OK\r\n" means success
"AT:WRONG\r\n" means invalid parameter, modify failed
"AT:ERP\r\n" means invalid command, modify failed.
Remark： only apply regular baud rate 4800,9600,19200,38400,57600,115200, other
parameter would be consider invalid.
4.3.7. Query Baud rate
Function：query current baud rate
Effective time：immediately
Command：
"AT:BPS？"+<CR><LF>
Feedback：
"AT:BPS-"+baud rate+<CR><LF> means success
Baudrate:6 character ，‟0‟~‟9‟ means 0~9,”115200”-> decimal 115200,”038400”-> decimal
38400
"AT:ERP\r\n" means invalid command, query failed