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 ...

While there are loads of impressive and complex projects here on Hackaday, sometimes it’s the simple ones that really speak to us. In this case we were presented with [Isabell Park]’s easy-to-follow ...

Sometimes, projects start in somewhat unlikely places. This one began when [Istvan Raduly] scored a fake raven at a neighbor’s garage sale and decided to turn it into a thunder-and-lightning ...

This task involves using two sensors—a PIR sensor and a light sensor—to control an LED based on specific conditions. The system performs the following actions: • Movement without Light: Turns on the ...

🚨 ESP32 PIR Sensor with Temperature & Humidity Logging System 🌡️ This project demonstrates how to build and deploy a motion detection and temperature/humidity logging system using the ESP32, a PIR ...