The command returns a result code OK if the computer (serial port) and module are connected properly. The read commands are not available to get value of last parameter assigned in execution commands because parameters of execution commands are not stored.ġ) AT - This command is used to check communication between the module and the computer.
SYNTAX: AT =parameter1, parameter2, …, parameterN Some values in set commands can be optional.Ĥ) Execution commands - used to carry out an operation. 1: Image Showing Classification of AT Commandsġ) Test commands - used to check whether a command is supported or not by the MODEM.Ģ) Read command - used to get mobile phone or MODEM settings for an operation.ģ) Set commands - used to modify mobile phone or MODEM settings for an operation. Information and configuration concerning the mobile devices or MODEM and SIM card.įig.Voice link and other data over mobile network.The AT commands can be used with GSM module and GPRS MODEMs or phone to access these services and information: These AT commands along with other extended commands also require Hayes command set as a subset. Every wireless, as well as the dial up modems, require an AT command to interact with a computer machine. These commands were derived from Hayes commands which were used by the Hayes smart modems. Write code to execute the function at commandsĪT commands are commands which are used to control the modems where AT stands for Attention.AT+QHTTPREAD//Read the response of HTTP server.AT+QHTTPGET //Send GET Request to HTTP server.AT+QICSGP Select CSD or GPRS as the Bearer.AT+QIFGCNT Select a Context as Foreground Context.List of commands used in this project and their description.
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