Oceanic ecosystems are increasingly threatened by global warming, which causes coral bleaching, species migration and, ...

Helium is inert, which makes it useful in a lot of different industries. But helium’s colorless and odorless non-reactivity ...

Terpenes are volatile organic compounds that are responsible for, among other things, the typical scents of plants, resins or ...

Here we detail the design and implementation of a compact, low-cost, smart air-quality monitoring system based on the Arduino ...

Overcurrent relays with inverse definite minimum time (IDMT) characteristics are widely used in power systems to protect ...

The table shows the pin configuration of the Arduino UNO–based robotic arm. The red (VCC) wires of all servos are connected ...

Abstract: In recent years, the monitoring systems play significant roles in our life. So, in this paper, we propose an automatic weather monitoring system that allows having dynamic and real-time ...

The Smart SMS Alert System using Seeed Studio Xiao ESP32 is one of the compact IoT projects that uses an HC-SR04 ultrasonic sensor to detect nearby movement. The system acts like a motion detector ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

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 ...