Through interactive activities, children learn programming logic, conditions, and how different instructions work together.

IntroductionMany people feel that electronics and robot control are daunting because they require hardware knowledge and coding skills. In this project, I experimentally progressed from 1. basic GPIO ...

Dolphins can find their way through dark, murky water by listening to echoes. Inspired by this ability, researchers in South ...

Run AI locally using devices ranging from an ESP32S3 chip to an RTX 4090 GPU. Match your hardware bandwidth and capacity to ...

So, if the pin layouts on a tutorial don’t match the ones I’ve got on my ESP32, I’d look at what protocol the sensor uses, go ...

I get a steady stream of emails from people whose dogs have become anxious, reactive, or simply different since an ultrasonic bark deterrent entered the house. I wrote about these devices years ago. I ...

ESPHome is the sole reason I was able to build several ESP32 smart sensors without losing my patience ...

That small dark circle near the rear cameras on certain iPhone Pro models isn't another camera. It's the LiDAR scanner, a sensor that helps your iPhone figure out how far away nearby surfaces and ...

I’m Adam Conway, an Irish technology fanatic with a BSc in Computer Science and I'm XDA’s Lead Technical Editor. My Bachelor’s thesis was conducted on the viability of benchmarking the non-functional ...

Why passive ultrasonic offers a unique option of sensing discrete open/close events. How a team used passive, non-electronic metal tag for signal initialization. How they used DSP-based, non-ML, ...

The **HC-SR04 Ultrasonic Distance Sensor** is one of the most popular distance measurement modules used in Arduino, ESP32, robotics, and IoT projects. It measures the distance between the sensor and ...

If you’re unfamiliar, board-certified dermatologist Michele Green, MD, describes them as handheld devices that use high-frequency vibrations, typically between 20,000 and 30,000 hertz, to exfoliate ...