AT+ROLE=?<CR+LF>

Request the CENTRAL-PERIPHERAL

configuration (default: ROLE_PERIPHERAL)

3. "AT+MIN_INTERVAL" change the minimum connection interval

AT+MIN_INTERVAL=10<CR+LF>

Recommended minimum connection interval (10ms) for PC

and Android

AT+MIN_INTERVAL=20<CR+LF>

Recommended minimum connection interval (20ms) for IOS

AT+MIN_INTERVAL=?<CR+LF>

Request the minimum connection interval (default: 10)

4. "AT+MAX_INTERVAL" change the maximum connection interval

AT+MAX_INTERVAL=10<CR+LF>

Recommended maximum connection interval (10ms) for

PC and Android

AT+MAX_INTERVAL=40<CR+LF>

Recommended maximum connection interval (40ms) for

IOS

AT+MAX_INTERVAL=?<CR+LF>

Request the maximum connection interval (default: 10)

5. "AT+UART" change the baud rate of UART

AT+UART=115200<CR+LF>

Set the baud rate to 115200

AT+UART=?<CR+LF>

Request the baud rate of UART (default:

115200,8,N,1)