Arduino with GSM and PIR Sensor

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https://www.electronics-lab.com/arduino-with-gsm-and-pir-sensor/

by motheeb @ instructables.com: This lesson will allow you to use SMS to control an LED along with using Arduino to make automatic calls to your phone in case it sensed movements in your room. You will be able to listen to the voices there and act upon emergency. Arduino with GSM and PIR Sensor – […]

OpenduinoGSM an open source tool Arduino IDE compatible with Opengate project inside

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https://www.electronics-lab.com/openduinogsm-an-open-source-tool-arduino-ide-compatible-with-opengate-project-inside/

Emanuele @ dev.emcelettronica.com: OpenduinoGSM is an open source tool for hobbyists & professional makers. The first project realized is the useful opengate (one ring with your phone and the gate is open). Inspired with OpenduinoGSM! With OpenduinoGSM you have the option of using the Arduino development environment, so anyone, even those who are unfamiliar electronics and […]