RGB LED Module Guide
The RGB LED module shown in the above image is a very popular generic RGB LED module available in the market. There are mainly two variants of this module having common-cathode (CC) and common-anode (CA) […]
Super Simple Solar Street Light
Every electronics hobbyist’s lab, or green energy lover’s home, needs an outdoor light powered by solar. If you’re one of them you should probably consider building this super simple mini solar street light for you! […]
Introduction to Capacitor
The capacitor is the basic electronic component that is used for storing, surge suppression and filtering. It is a widely used and important component in the family of electronics. Like resistor, capacitors are passive components […]
LED Strip & Microcontroller
This is a simple design guide for making your own really nice lighting for your home, office, shop, lab, etc. by using the common and inexpensive LED strips available in various colors. The intent is […]
Universal 1W LED Standby Light
Circuit of the Universal 1W standby LED Light introduced here is more self-contained and more flexible than many of the early designs. The circuit consists of a small Lithium-Ion (Li-Ion) battery, simple Li-Ion battery charger, […]
Pauper’s Rotary Encoder
Quadrature Encoder is a familiar everyday sensor in robotics world. A quadrature encoder is a handy rotary encoder that let you know the speed and direction of a rotating shaft or linear motion. Let’s start […]
How to Build a Digital Weight Scale
Nowadays, if you want to build your own digital weight scale, it’s surprisingly easy because you only need a handful of commonly available components in addition to your favorite Arduino microcontroller board. In this primer […]
How to Play with PT100 Sensors
Recently I came across a bundle of PT100 temperature sensors (after a long time), and wanted to build a temperature sensor device with the help of an Arduino. Even though I already had a few […]
How to Play with RTC Modules
The following article is a simple guide lets you get time and calendar functions with a real time clock chip and microcontroller. Hopefully this entryway can help you to walk through your own project ideas […]
Tiny Chirp
So I have this Tiny Chirp, when you power it up, an indicator wakes up and it does a sequence of wonderful chirps! First, you need one active piezo-buzzer (i.e. the type with a built-in […]