Solar panels gives more power when they face the sun directly, also manual turning is hard and wastes time; automatic solar tracker moves panel automatically with sun. This Solar Tracker Circuit using LDR and Op-Amp uses simple parts and with no Arduino or microcontroller; its main parts are two LDR sensors, TDA2822 IC, few resistors, […]
Voltage Vs Current Explained Simply
Voltage and current drive electricity and electronics; beginners often confuse them because they operate together in circuits, but they represent fundamentally different concepts. In addition, voltage and current anchor electricity and electronics, beginners often confuse them because they interact in every circuit, but they are entirely different concepts. Voltage is the pressure or force that pushes […]
Learn the Basics of Analog Circuits
To begin with, Analog circuits are very important part of electronics because these circuits work with continuous signal and voltage can change smoothly from one value to another value. Many electronic devices like radio, amplifier, sensor and power supply are using analog circuits for their operation. By learning basic of analog circuits, beginners can understand […]
Electronic Eye Circuit using IC 4049
This project is for small Electronic Eye Circuit using IC 4049, which can sense darkness or shadow. When light falls on the LDR, the circuit remains OFF and when an object blocks the light, the LED and buzzer turns ON; moreover, this circuit also works like a magic eye and is useful for security systems […]
Sound And Light Metronome Circuit using Transistors
Music needs rhythm and a metronome helps us keep that rhythm perfect; also this small project for Sound And Light Metronome Circuit using Transistors turns light into beat. When light changes then sound speed also change and hence, this project is simple, fun and easy to build. What is Metronome: Metronome is small device that […]
Simple LED Circuit
Want to light an LED using a battery? then this Simple LED Circuit using 9V Battery shows how; as it is the first step to learn electronics and current flow. In addition, just with one battery, one resistor and one LED, we can make it in few minutes and see our LED glow bright. Circuit […]




