How to set the mode to server (master): 1. Connect PIO11 to high level. 2. Power on, module into command state. 3. Using baud rate 38400, sent the "AT+ROLE=1\r\n" to module, with "OK\r\n" means setting successes. 4. Connect the PIO11 to low level, repower the module, the module work as server (master).
Thanks for replying!My FTDI is set for 5V but I'm powering the bluetooth through a voltage divider. When I send AT\r\n I don't get anything back (no OK, the cursor in PuTTY just goes back to the beginning). Help?
EGBT-045MS RX input is not 5V tolerant. A schottky diode connected as shown will keep 5V volt-ages out of the Bluetooth module when operated with a 5V host microcontroller.