The XIAO Smart IR Mate is a compact circular-shaped IR remote hub/blaster built around the XIAO ESP32-C3 and designed for IoT ...

How it works is simple: you can track devices using Bluetooth on the ESP32, and through a combination of presence and signal strength, you can define a sensor that changes to an "on" state when ...

The build is based around the TCS34725, an off-the-shelf color sensor. It’s paired with an ESP32, which senses colors and then plays sounds in turn.

This project defines the source code for a ESP32 based sunlight sensor. The sensor is designed to measure the intensity of light of and send the results to a web service. This is my first embedded ...

The build is based around the TCS34725, an off-the-shelf color sensor. It’s paired with an ESP32, which senses colors and then plays sounds in turn.

What's the best type of smoke alarm for my home? Optical smoke alarms Optical (or photoelectric) alarms are light sensors containing an infra-red LED, which pulses a beam of light into the sensor ...

Electrical heart-rate sensors, found most commonly in chest strap heart-rate monitors, can detect electrical currents produced by your heart, somewhat similarly to what is done at the doctor's ...

The problem It looks like Addressable Light expect a pixel to be made up of 3 components only and thus when using a RMT backed addressable light, the pixel colors are all over the place. If is_rgbw is ...

7 best IPL devices 2025, tested by a beauty editor for effective hair removal I’ve tested a range of devices on legs, underarms and more ...