Electronics Projects

Projects

Batteries
How to Recharge Batteries with a DC Power Supply
How to Recharge Batteries with Solar Cells
How to Build a Battery Eliminator

LEDs
How to Vary the Brightness of an LED
How to Build an LED Driver Circuit
How to Build an LED Flasher Circuit
Infrared LED Circuits
How to Build an IR LED Circuit
How to Build an Infrared Detector Circuit
How to Build a Proximity Detector Circuit
UV LED
How to Build a UV LED Circuit

Capacitors
How to Charge a Capacitor
How to Use a Charged Capacitor to Light an LED
How to Discharge a Capacitor

Buzzers
How to Build a Buzzer Circuit
How to Vary the Volume of a Buzzer
How to Make a Buzzer Produce a Chirping Sound
How to Make a Buzzer Produce a Warbling Sound

Photoresistors
How to Build a Simple Photoresistor Circuit

Force sensing resistor
How to Build a Force-sensing Resistor (FSR) Circuit

Thermistors
How to Build a Simple NTC Thermistor Circuit
How to Build a Simple PTC Thermistor Circuit

Varistors
How to Build a Simple Varistor Circuit

Diodes
Protection Diodes
How to Connect a Protection Diode in a Circuit
Laser Diodes
How to Build a Laser Diode Circuit

Transistors
How to Connect a Transistor in a Circuit for Amplification

Relays
How to Build a Relay Driver Circuit

Overvoltage Protection Circuit
How to Build an Overvoltage Protection Circuit

Transient Voltage Suppressors
How to Build a Transient Voltage Suppressor (TVS) Circuit

Touch Sensor
How to Build a Touch Sensor Circuit

Tilt Sensor
How to Build a Simple Tilt Sensor Circuit

Accelerometer
How to Build an Accelerometer Circuit

Microphones
How to Build a Simple Microphone circuit

Speakers
How to Build a Simple Speaker Circuit
How to Build a Speaker Circuit with Adjustable Volume

Motors
How to Build a DC Motor Circuit
How to Build an Electric Fan

Fans
How to Build a DC Fan Circuit
How to Build an AC Fan Circuit

Temperature Sensor Circuit
How to Build a Temperature Sensor Circuit

Hall Effect Sensor Circuit
How to Build a Hall Effect Sensor Circuit

Motion Detector Circuit
How to Build a Motion Detector Circuit
How to Build a Motion Detector Alarm Circuit

Vibration Detector Circuit
How to Build a Vibration Detector Circuit
How to Build a Vibration Alarm Circuit

Attenuator
How to Build a Simple Attenuator Circuit

USB
How to Build a USB-powered Device

Talking Toy Circuit
How You Can Build Your Own Talking Toy

Metal Detector Circuit
How to Build a Metal Detector Circuit

DC Power Supply
How to Build a DC Power Supply

Projects with Arduino
Arduino LED Flasher Circuit