I have a popular bluetooth module JY-MCU version 1.06 (picture below). Before i insert it to my arduino project I want to configure the name, bound speed and the pass code using usb-to-serial link. But I am facing a problem where the device does not respond to commands. Please let me explain.
I send the module to programming mode by applying +5V on 'key'
Then I send commands using CoolTerm program:
AT+NAMEmyArduinoProject > OKyour set name
Ok. setting the name works as expected. But that is the only thing that worked for me. Other commands give no response:
AT AT+BAUD2 AT+VERSION AT+VERSION?
Maybe you had this happen to you? I am I sending wrong commands or doing something wrong? Please help me to figure out how to control this module.