I finally got around to testing this concept – adding a crosswalk button to the previously published Arduino Traffic Lights project I must admit, I was surprised to find a compact traffic light controller module […]
Arduino provides a number of analog inputs which enables us to measure parameters such as voltage, current, resistance, light, temperature, and so on in the analog arena. In this post, we’ll look at how to […]
In this tutorial, we will learn how to interface a big photoresistor with Raspberry Pi Pico. Since the Raspberry Pi Pico microcontroller provides analog ports, we can easily do a number of projects using common […]
There has been a drastic and steep increase in the number of monkeys coming into my backyard over the last few months. Below you can see a shot taken by my surveillance camera. So, naturally […]
This is a quick revision of the cheap and popular motion sensor radar module RCWL-0516 (https://www.codrey.com/electronic-circuits/microwave-radar-motion-sensor-switch/). The RCWL-0516 module would be a good choice for making motion sensing lamps and other devices, and it probably […]
This is an updated version of an old project that was published in EFY Magazine (print) 21 years ago! Now you can see that article here https://www.electronicsforu.com/electronics-projects/solidstate-signal-lamp This time I’m using a minuscule microcontroller to […]
A servo motor is a compact motor whose shaft turns to position something based on a control signal. The common servo motor consists of plastic housing that contains a small motor, control circuitry, and a […]
A capacitive proximity sensor is a non-contact device that can detect the presence or absence of an object in its close vicinity. It utilizes the electrical property of capacitance and the change of capacitance based […]
The theremin is an electronic musical instrument with two metal rods (antennas) used to control pitch and amplitude by the human operator using hand gestures. The left rod (a horizontal hoop) reduces the amplitude as […]
This post showcases an example project I made to help you add a terrific signal light and siren to almost all toy cars. As we all know, cheap remote control (radio control) toy cars (R/C […]
