An ESP8266 controls the built-in MP3 player module, some NeoPixel flash LEDs and a relay as soon as a PIR motion detector detects a movement. A local voice message is played and an alarm email is sent ...

A passive infrared sensor detects body heat (infrared energy) by looking for changes in temperatures. This is the most-widely-used motion sensor in home security systems. When you arm your system, ...

Street crime is very common in the modern century. Everybody needs to feel secure when they are at home either while sleeping at night or during day time. So, many security alarm systems are available ...

The PIR (Passive Infrared) sensor is the heart of our burglar alarm system using pir sensor. Whenever there is any body movement, the voltage at the output pin changes. Basically, it detects the ...

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In the microcontroller era today, Arduino is more than just a tool to accomplish hobby tasks. There is actually a close relationship between microcontroller technology and home security, since you can ...

The main principle of the circuit is to provide security using PIR sensor. This can be used in the museums to protect the valuable things and also in defense applications to detect the humans in war ...

Designed by Smart Bee Designs, the tiny Bee Motion Mini combines an ESP32-C3 wireless RISC-V SoC with a PIR sensor for motion detection reporting over WiFi, Bluetooth LE, or Bluetooh Mesh. The board ...

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