I woke up with a headache, looked outside, and saw it was raining (I don't describe opening the curtains, but I'm the type ...

Why pay a premium for smart devices when an ESP32 and some cheap sensors can do everything for a fraction of the price?

About five years ago, I worked on IoT for my job. I once used this DHT11 (a blue temperature and humidity sensor) to build a ...

Terrified of his woodstoves and weary of the attention they demanded, Hinesburg’s Neil Shah invented a device to alert him when the fires need tending.

IT TAKES only a small pool of stagnant water for mosquito larvae to breed. And by the time they grow into adults, the problem ...

In my early ESP32 tinkering days, I’d only use the microcontroller to test with LEDs, resistors, and other circuitry components. In fact, writing simple C++ programs to perform basic tasks on the ...

Creating a live weather station with an ESP32 microcontroller and a DHT22 sensor offers a hands-on introduction to IoT applications. As demonstrated by IoT Journal, this project combines hardware ...

Build an Arduino-based ventilation controller that monitors room temperature and humidity and automatically switches a fan when preset limits are exceeded. A simple Arduino controller can automate ...

Ayush Pande is a PC hardware and gaming writer. When he's not working on a new article, you can find him with his head stuck inside a PC or tinkering with a server operating system. Besides computing, ...

Here, we address this problem using carbon nanotube (CNT) field-effect transistors (FETs) in which the base device structure is lithographically fabricated before the deposition of gas-sensitive ...

The DS18B20 is a digital temperature sensor that comes in two versions: a small TO-92 package, and a waterproof variant often encased in a metal tube with a long cable. Both provide digital ...