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How does the 51 microcontroller communicate with the mobile phone through the GPRS module?
Hello, the GPRS module is usually controlled by AT commands. You can use the serial port (USART) of the microcontroller to send corresponding commands to the GPRS module to achieve communication with the mobile phone. For example, sending an AT command to make a phone call to the GPRS module can realize phone warning. Similarly, there are SMS control and Bluetooth communication, which can realize communication between the module and the mobile phone.
I am also doing GPRS module communication now. I am using the SIM800C evaluation board of Freestron Electronics to implement TCP communication with the server, which has been adjusted. If you are interested, welcome to learn and communicate together
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