![]() ![]() We can use microcontroller’s serial port to communicate with GSM, means using PIN 10 (RXD) and 11 (TXD). It’s very easy to interface GSM with 8051, we just need to send AT commands from microcontroller and receive response from GSM and display it on LCD. Industrial Communication Serial to Etnernet Converters Serial to WiFi Converters Industrial Cellular Modems Industrial 4G. For serial communication between the modem and. ![]() GSM modem is a hardware which accepts a valid SIM. The post explains how to send SMS using GSM Modem and. So we are going to interface GSM with a 8051 microcontroller (AT89S52). GSM Interfacing with 8051 Instead of using PC, we can use microcontrollers to interact with GSM module and LCD to get the response from GSM module. We can use GSM module using these commands. AT commands should be followed by Carriage return i.e. There are various AT commands like ATA for answer a call, ATD to dial a call, AT+CMGR to read the message, AT+CMGS to send the sms etc. The most basic command is “AT”, if GSM respond OK then it is working good otherwise it respond with “ERROR”. GSM module only understands AT commands, and can respond accordingly. It is used to interact with GSM network using a computer. GSM module is used in many communication devices which are based on GSM (Global System for Mobile Communications) technology. Serial Communication With Gsm Modem Sim900a. ![]()
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