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100 project(s) found

Simple Photodiode Light Sensor Circuit
School Projects

Simple Photodiode Light Sensor Circuit

Detects light intensity changes using a photodiode connected to a simple amplifier ci...

PT20264849 7
Astable Multivibrator LED Blinker (Two Transistors)
School Projects

Astable Multivibrator LED Blinker (Two Transistors)

Two transistors alternately blink two LEDs without any IC or programming - a foundati...

PT20267397 7
Simple Voltage Divider LED Dimmer
School Projects

Simple Voltage Divider LED Dimmer

A potentiometer-based circuit that manually dims an LED, demonstrating voltage divisi...

PT20268513 8
Series vs Parallel Bulb Brightness Demo
School Projects

Series vs Parallel Bulb Brightness Demo

Compares how bulb brightness changes when wired in series versus in parallel with the...

PT20268988 4
Simple Electric Bell Model
School Projects

Simple Electric Bell Model

A classic electromagnetic bell model showing how a buzzing bell actually works inside...

PT20265723 7
DIY Compass Using a Magnetized Needle
School Projects

DIY Compass Using a Magnetized Needle

Magnetize a sewing needle and float it to build a working compass, and learn about ma...

PT20263117 7
Simple Rain Alarm Using Exposed Wires
School Projects

Simple Rain Alarm Using Exposed Wires

Two exposed wires on a board sound a buzzer the moment rain droplets bridge the gap b...

PT20267264 5
LDR-Based Automatic Night Lamp (No Microcontroller)
School Projects

LDR-Based Automatic Night Lamp (No Microcontroller)

A light-dependent resistor and transistor circuit that switches a lamp on automatical...

PT20269575 5
Simple Transistor Switch Circuit
School Projects

Simple Transistor Switch Circuit

Uses a transistor to switch an LED on and off with a small control signal, the basis ...

PT20260799 7
Capacitor Charge-Discharge LED Demo
School Projects

Capacitor Charge-Discharge LED Demo

Shows how a capacitor stores and releases energy by watching an LED fade in and out.

PT20262030 12
Metal Detector Using a Simple Coil Circuit
School Projects

Metal Detector Using a Simple Coil Circuit

A basic coil-and-oscillator circuit that changes pitch near metal objects.

PT20265137 5
Simple Morse Code Practice Buzzer
School Projects

Simple Morse Code Practice Buzzer

A switch and buzzer set for practicing Morse code, a fun way to learn about signaling...

PT20262823 6
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