Self-Dimming LED Lamp
Described here is the do-it-yourself project of a simple self-dimming lamp. The self-dimming lamp is powered by a rechargeable 9V battery and features a push-button switch that triggers one bright LED as the emitter and […]
Power Sequencer – Little Design Ideas
The power sequence is the sequence in which the power is applied and shut down between steps in a sequence. A power sequence is used when there are devices with different power supply voltages mixed […]
Power MOSFET Module for Microcontroller
In many posts, we saw how to use a common transistor as an electronic switch to drive power loads of voltage and current mightier than those we could deliver with the I/Os of a standard […]
Model Rocket Launch Controller
Most commercial model rocket launch controllers available to buy are either expensive or do not have desired features. After a lot of Googling, I found nothing that fits my little budget. Actually, I wanted a […]
Electronic Signal Selector Switch Module
If you’re an audiophile, often you have to purchase rotary audio input selector switches for your home audio projects. You can of course buy such selector switches and selector switch modules via usual online channels […]
LED Strobe Primer – Part 2/Final
This is the concluding part of the LED strobe article published last year (https://www.codrey.com/electronic-circuits/led-strobe-primer-part-1/). During this long period (sorry for the inadvertent delay) I have already shared several strobe light ideas. But the sequel to […]
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, […]