Hi,Connect the Tx pin of Uart | Microcontroller › 8051 › interfacing both gps and gsm module simultaneously with 8051 › Hi,Connect the Tx pin of Uart September 1, 2014 at 4:09 am #12103 AJISH ALFREDParticipant Hi, Connect the Tx pin of Uart to GSM module and Rx pin to the GPS module. This will solve the problem somewhat because the controller mostly read data from GPS and write data to GSM.
