Thank you so much for your response, i didnt actually understood the part where i have to list the commands to send it to the radio over the UART i have read the datasheet but they only show you how to program the RN through MPLAB which is not my case since i have to develop a script or a library with STM ( with the IAR IDE) so what i wanted to know if i try and translate the functions in the library like the one for the Arduino above is it going to work or is there another way ?