We have some GSM modules ( Sim 900 and Quectel m35) controlled by UART. We would like a small code implementing multiparty call ( AT+CHLD) to the maximum permitted by the GSM module.
Hi, my name is Artem. I work Electronical and Software Engineer more 10 year . My work is development equipment and programs for embedded system.
I have experience working with SIM900 and AT commands. I wrote some programs. I can help you. Could you more about you task?