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Arduino Sim900 Library

This library is written for any Arduino shield equipped with a SIM900 Quad-band GSM/GPRS module. Events from the unit is sendt to your sketch via callback functions. Sending AT commands to the unit should be done with the sendATCommand() function. This function will only return true if the unit responds with OK as its first response. The function should not be used with commands that doesn't return OK or ERROR as its first response.

Examples

You may need to modify mySerial.begin() under setup() to match your SIM900's current baud rate.

echo

A SMS sent to the unit will be echoed back to the sender. See the smsHandler() callback function.

callback

A SMS sent to the unit will trigger a call to the sender. See the smsHandler() callback function.

Download

Click the Download Zip button to the right

Installation

  • Uncompress the downloaded zip-file
  • Rename the uncompressed folder to Sim900
  • Place the Sim900 library folder in your /libraries/ folder
  • Restart the Arduino IDE