White Noise Generator – An Analog Way
Welcome to the lovely sound of analog electronics! Now I’m building some white noise and pink noise generators for an upcoming amateur audio project. In this article, you can see a few basic design ideas […]
Arduino Garden Lights Controller – Just a Starter
I was looking around for a little garden electronics project, and I came up with the idea of making a strikingly different Arduino garden lights controller. The reason I picked such a theme is that […]
Automatic Driveway Light Controller
More and more homeowners realize the advantage of having an automatic driveway light. An automatic driveway light is very convenient and an excellent way to save electricity. Now it’s easy to automate an already existing […]
Arduino PID – An Introduction
PID Controller is the most common control algorithm used for more precise and accurate control of various parameters in industrial automation & applications. Most often these are used for the regulation of temperature, pressure, speed, […]
Little EMF Detectors (Funny Ghost Hunters)
Now you don’t have to drain your wallet to buy an EMF meter. Whether you are searching for a ghost hunter or just looking to gauge the electromagnetic field disturbance in your house, a do […]
TP5100 1S/2S Li-ion Battery Charger – Quick Review!
Even though I have a large collection of TP4056 modules for charging lithium-ion cells, I recently found a pretty small charger module – TP5100 – capable of charging a single lithium-ion cell or two lithium-ion […]
Sawtooth Wave & 555 Timer
This guide details how to build a simple sawtooth wave generator using the venerable 555 timer chip that can be used to test some of your homemade circuits and projects. Got any questions? I’m happy […]
Peephole Proximity Sensor
Peephole proximity sensor presented here is an inexpensive nearness detector for hobby electronics projects and home automation applications, where we need to sense the presence of a person (or object) in front of an entry […]
Fish Bite Alarm v1
A fish bite indicator is a mechanical bell or electronic alarm that indicates to an angler that something is happening at the hook end of the fishing line. There are many types of fish bite […]
Cheap CH551G MCU with USB Controller – Part 1
It was during Christmas week last year that I received an unexpected gift packet from an online store in India. What caught my immediate attention in that collection was the very small microcontroller chip CH551G. […]