Electronics Projects

Switching Circuits

• Frost Alarm
• Dark Activated Switch
• Electronic Keypad
• Light Detector Circuit
• DC Motor Control Circuit
• PBS Switch Debouncing Circuit
• Remote Doorbell Warning Switch
• Electronic Doorbell with Counter
• Digital Combination Lock
• Electronic Night Light
• Sound Operated Switch
• Voltage Comparator Switch
• DC Motor Reversing Circuit
• Voltage Controlled Switch using 555 Timer
• Keypad Switch No.2
• Electronic Door Release
• Intelligent switch
• Heat-Sensitive Switch
• Washing Machine Motor Controller
• Voltage-Based Controller For Switches
• Automated Traffic Signal Controller
• Automatic Switch For Audio Power Amplifier
• Automatic Headlight Brightness Switch
• Load Sensing Auto Switch
• Solid State Switch for DC Operated Gadgets

Motor Speed Control

• AC Motor Speed Controller
• Pulse Width Modulation DC Motor Control
• Simple Servo Controller
• Simple Two Speed Contactor DC Motor Controller 
• Stepper Motor Controller

Miscellaneous

• Triangle and Squarewave Generator
• Vertical ground plane antenna
• TV Remote Control Jammer
• 4 Transistors Tracking Transmitter
• FM Band Monaural Transmitter
• Touch Activated Light
• Water Activated Alarm
• Sun-Up Alarm
• Stun Gun
• Square wave oscillator (using Schmitt inverter)
• Solar Cell Phone Charger
• Smart Antennas
• Plant Watering Watcher
• Inverter 12V to 220V 300W by NE555,2N3055
• AM Band Antennas
• F.M. RECEIVER BASICS
• A.M Receiver design - the fundamentals
• Simple AM Radio Receiver
• AM reciever
• Induction Receiver
• 3 Transistor Audio Amp (50 milliWatt)
• Improved 3 Transistor Audio Amp (80 milliwatt)
• Automatic Trickle Charger
• Basic Lamp Dimmer
• Clap Activated Remote
• Colpitts Oscillator
• 12V to 120V Inverter
• Design of Frequency Oscillators
• Electronic Time Constant Control
• FM Band Monaural Transmitter
• Induction Receiver
• Simple Lie Detector
• High liquid level activated switch
• Magic Lamp
• GPS Module GP810
• Thermistor with OPAMP control circuit
• Digital to Analog Converter DAC 0800
• PROXIMITY SENSOR
• Relay Vs Switch
• Analog to Digital Converter module
• History and Scope of RFID
• RFID Module and Principle of working