Abstract: A chronograph is a device that measures the time between two events. This article discusses the design, fabrication, and calibration of a ballistic chronograph designed to measure the time ...

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 ...

Have you ever wished you had a personal assistant who could follow you around, take care of your chores, entertain you, and keep you updated on the latest news and events? Well, you might be in luck, ...

Tripwires, initially designed for military use, have become a popular and versatile tool in various applications such as security systems, wildlife photography, and even recreational games. Here are ...

“I started using Bluetooth devices like the HC-05 modules, but I found that these sometimes randomly disconnected. Since then I’ve been using the NRF24L01 modules which is what’s in my openDog remotes ...

This Arduino library allows you to use Deneyap Infrarad Receiver Transmitter with I2C peripheral. You can use this library in your projects with any Arduino compatible board with I2C peripheral.

Arducon is an Arduino based ARDF transmitter controller specifically designed for for conducting amateur radio direction finding and is now available via Kickstarter. The unique piece of kit has been ...

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The OS151-USB series non-contact infrared temperature transmitter features max, min average and instantaneous readings; peak or valley hold; reflected energy compensation, OPC server capabilities and ...