Living objects with a body temperature above 0°C emit heat as infrared radiation, also known as thermal radiation, which is invisible to the human eye. PIR sensors, designed for this purpose, can ...

This Arduino sketch uses a PIR sensor to detect motion and trigger a relay. It also keeps an MQTT server in the loop on state changes, as well as allowing the relay to be turned on via an MQTT message ...

This project is a Smart Energy Meter system built with ESP32, PZEM-004T v3.0 energy sensor, PIR motion sensor, Relay module, I2C LCD, and Blynk IoT integration. It allows you to monitor energy usage ...

Automating household or office systems can be achieved using an Arduino Nano, a passive infrared (PIR) motion sensor, and a relay. The primary aim is to create a control system that activates or ...

This article aims to demonstrate the design of a smart brightness-controlled lamp with a motion sensor using a programmable mixed-signal matrix with four outputs, operating voltage up to 13.2 V, and 2 ...

The PIR motion sensor consists of 3 pins-VCC, GND, and the Data Output Pin. VCC is the power pin of the module. Out is the data Output pin of the module.it goes high when motion is detected. GND is ...

You can expect almost the same characteristics as the Baseus Y-shaped night light lamp that we have examined previously, but it’s more compact in size and easy to mount inside a room, closet or hall ...

We’ve previously shown how to control lights with a 433 MHz PIR motion sensor via a 433MHz to WiFi bridge based on an ESP8266 WiFi module itself commanding Sonoff Basic wireless switches connected to ...

The motion sensor switch circuit can automatically turn on a water sprinkler but you can easily use it as a motion sensor light switch or motion activated alarm too. Before beginning the construction ...

The Bee Motion S3 is an ESP32-S3 WiFi and Bluetooth IoT board with a PIR motion sensor beside the more usual I/Os, Qwiic connector, USB-C port, and LiPo battery support. It is at least the third PIR ...