Baofeng UV5R Programming with Arduino

     This is simple method to program UV5R or similar radio's belonging to Baofeng family of radio's. Here we will be utilizing the USB to Serial interface of Arduino Uno to perform the required programming. Also we will be describing method to prepare radio interface cable using simple audio jack and few wire.

 

 Two 3.5mm TRS Audio Jack, a 2.5mm male to 3.5mm female Audio Jack adapter, three pieces of wires and 3 pin berg strip F connector are the basic materials required to build the interface cable. The detailed circuit diagram is given below using which it can be easily wired. To disable execution of any program in Arduino the RESET pin is connected to ground. 

Connectivity diagram

    In my prototype I have used TRRS type 3.5mm Jack as it was available with me. While using TRRS type connector it is required to short the sleeve and adjacent ring as shown below to make it work as TRS type jack.

TRRS Port Sleeve and Ring Shorted

Finished Radio Interface cable

    

    CHIRP is the Programming software used which is installed on Raspberry Pi. The software can be download from here. 

    Detailed step by step procedure to program the radio is given in below video.