This github includes the complete circuit & code for Interfacing Bluetooth Module & GSM Module with single Arduino using Software Serial ...

An interfacing intrusion-detector unit is also connected to the microcontroller-based ... The circuit is highly-flexible so that you can use any SIM900A modem (and ofcourse any Arduino Uno board) ... ...

This project enables remote control of a motor (such as a borewell pump motor) via GSM network using an Arduino Uno and SIM900A GSM module. The motor can be turned ON or OFF by sending SMS commands or ...

This paper represents a design and implementation of a Wireless Heart rate monitor system using ARDUINO Lilypad which is enabled with the feature of sending SOS messages or calls through GSM module.

1) about sim900 GSM module 2)interfacing with 8051 Microcontroller 3)Some AT commands 4)embedded c programming for GSM link 5)embedded c programming for SMS… ...