I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

If you’re going to develop another Arduino-compatible board these days, you might as well take a “kitchen sink” approach. The Smart Citizen Kit piles it on, including Wi-Fi, an SD… ...

In this article, I have added three sensors with Arduino UNO and user can choose the required sensor with the help of keypad.

I've just come across a no-name non-contact, high-precision 80 GHz mmWave radar sensor for liquid level detection with a 40m ...

So [Todd] has set out to build an Arduino frequency counter for a Kenwood TS-520S HF ham radio. This post (and the video found after the break) doesn’t cover the entire project.

High sensitivity, very low power radiation sensor in a Arduino shield form factor. Like many other hobbyist I have always been fascinated by radioactivity and the sensors to detect it.Geiger-Müller ...