How to set the name and pin of my JY-MCU Bluetooth adapter 30 November 2014 Donovan-Brown (0) Problem: I want to change the name and pin of my JY-MCU Bluetooth Board v1.05. Solution: Use an Arduino and send AT commands to the JY-MCU. Explanation: Open the attached sketch into the Arduino IDE and upload to your Arduino. Connect the RX pin to pin 2, TX pin to pin 3, GND to GND and V... [More]