//Description :This project will work by pressing the yellow button calls a pre-set SIM number, while the blue button shares the exact location via a Google Maps link. Serial.println("Press the ...

As shown in the block diagram (Fig. 5), there are also some other components like push buttons (SW1 and SW2), GPS module, GSM module, and power supply. The circuit diagram of the project is shown in ...

//This sketch is from a tutorial video on the ForceTronics YouTube Channel. The tutorial discusses how to build a //shield and a prototyping board for the nRF24L01 Transceiver Module. const int pinCE ...

Further, an optional “call – alert” facility is added to the security system, which will initiate a telephone call when push button switch S2 is activated by the user (or by another electronic module) ...

This tasty proof-of-concept cellular sandwich is made by adding a Sim900 GSM/GPRS module, which communicates via UART, to the Pi/TFT hardware while using a piece of foam core board in the middle ...

GSM is definitely going out, and some operators are also phasing out 3G in favor of 4G/5G. It’s a bit weird, because those operators that are dropping 3G are leaving 2G in place for basic ...