Posts
Relay Toggle Circuit Using a 555 Timer
Relay Toggle Circuit Using a 555 Timer
Switching cricuits
All these engineering project content are in the stream of Electrical and electronics!
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
All these engineering project content are in the stream of Electrical and electronics!
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
Robotics
Monday, September 29, 2008
All these engineering project content are in the stream of Electrical and electronics!
ROBOTIC CAR
Adam - I
Adam - II (micro mouse competition entrant)
Optical Mouse Hack - Used in Adam - II
The 1381-based solar engine
555-based solar engine
90S2313 AVR Robot Board
IR Detector for Robot
RF Modem Robotics Project
Small 3-wheel ROBOT with PIC16F84 brain & InfraRed eyes
Line Follower ROBOT
Desktop Line Following Robot
Mini line follower Robot
All these engineering project content are in the stream of Electrical and electronics!
ROBOTIC CAR
Adam - I
Adam - II (micro mouse competition entrant)
Optical Mouse Hack - Used in Adam - II
The 1381-based solar engine
555-based solar engine
90S2313 AVR Robot Board
IR Detector for Robot
RF Modem Robotics Project
Small 3-wheel ROBOT with PIC16F84 brain & InfraRed eyes
Line Follower ROBOT
Desktop Line Following Robot
Mini line follower Robot
Miscellaneous
All these engineering project content are in the stream of Electrical and electronics!
Flashing Neons (NE-51 / NE-2)
Sequencing Neons (NE-51 / NE-2)
Touch Activated Light
Game Show Indicator Lights (Who's First)
Salt Water Battery
Transistor Schmitt Trigger Oscillator
Car parking system using Microcontroller
Electronic House
Automatic Railway Gate Control
Intelligent Train Engines
Water level indicator and controller
THE SUDOKU SOLVER
Automatic Railway Grade Crossing Flashers
Joy Stick Controlled - Modernized "Toy" Throttle
Laser Pointer Train Detector
Automatic Station Stop Circuit
Plant Watering Watcher - Version II
Water-Level Controller
Staircase Light With Auto Switch-Off
Fire Alarm Using Thermistor
Mobile Cellphone Charger
DIGITAL ENGINE TACHOMETER
Centronics port D/A converters and low-pass filter
Plant Moisture Meter
Room Noise Detector
Heating System Thermostat
Cellular Phone calling Detector
Temperature-controlled Fan
Temperature-controlled 12V dc Fan
Digital Step-Km Counter
Bicycle back Safety Light
Whistle Responder
Jogging Timer
PC Multimedia Speakers
Running Message Display
Digital Dice With Numeric Display
School/College Quiz Buzzer
All these engineering project content are in the stream of Electrical and electronics!
Flashing Neons (NE-51 / NE-2)
Sequencing Neons (NE-51 / NE-2)
Touch Activated Light
Game Show Indicator Lights (Who's First)
Salt Water Battery
Transistor Schmitt Trigger Oscillator
Car parking system using Microcontroller
Electronic House
Automatic Railway Gate Control
Intelligent Train Engines
Water level indicator and controller
THE SUDOKU SOLVER
Automatic Railway Grade Crossing Flashers
Joy Stick Controlled - Modernized "Toy" Throttle
Laser Pointer Train Detector
Automatic Station Stop Circuit
Plant Watering Watcher - Version II
Water-Level Controller
Staircase Light With Auto Switch-Off
Fire Alarm Using Thermistor
Mobile Cellphone Charger
DIGITAL ENGINE TACHOMETER
Centronics port D/A converters and low-pass filter
Plant Moisture Meter
Room Noise Detector
Heating System Thermostat
Cellular Phone calling Detector
Temperature-controlled Fan
Temperature-controlled 12V dc Fan
Digital Step-Km Counter
Bicycle back Safety Light
Whistle Responder
Jogging Timer
PC Multimedia Speakers
Running Message Display
Digital Dice With Numeric Display
School/College Quiz Buzzer
Op-Amp Circuits
Sunday, September 28, 2008
All these engineering project content are in the stream of Electrical and electronics!
Op-Amp Basics
2nd Order Opamp Filters
Bandpass Filter (Single Op-Amp)
Low Power Op-Amp - Audio Amp (Intercom)
Op Amp Radio
All these engineering project content are in the stream of Electrical and electronics!
Op-Amp Basics
2nd Order Opamp Filters
Bandpass Filter (Single Op-Amp)
Low Power Op-Amp - Audio Amp (Intercom)
Op Amp Radio
Audio Circuits
Saturday, September 27, 2008
All these engineering project content are in the stream of Electrical and electronics!
15 Watt Amplifier
150W MP3 Car Amplifier
24 Watt Class A Amplifier
Buffer Amplifier
Class-A//AB Amplifier
Audio Level Meter
Voice-Over Circuit
Simple 3 Transistor Audio Amp (50 milliwatt)
Improved 3 Transistor Audio Amp (80 milliwatt)
Audio Amplifier for Personal Stereo
Mosfet-Based Preamplifier for FM Radio DXing
Precision Amplifier With Digital Control
22 Watt Audio Amplifier
50 Watt Amplifier
FET Audio Mixer
Guitar Fuzz Effect
Microphone Mixer
Mono To Stereo Synthesizer
Sound Level Meter
Stereo Tube Amplifier
300W Subwoofer Power Amplifier
TDA2030 8 Watt amplifier
Single Chip 50 Watt / 8 Ohm Power Amplifier
Hi-Fi Preamplifier
MASTHEAD PREAMP
100W Guitar Amplifier Mk II
Simple Surround Sound Decoder
High Quality Audio Mixer
Simple Car Preamplifier and Artificial Earth
Loudspeaker Protection and Muting
Subwoofer Amp
Audio Auto Shutoff
10W Audio Amplifier with Bass-boost
Automatic Loudness Control
Portable Mixer
Minimalist Discrete Hi-Fi Preamp
(Discrete Opamp)
Thermo-Fan To Keep Your Amp Cool
Active Sub-Woofer and Controller
Audio Amp Output Power Limiter
Speech Amplifier Box
Mini-MosFet Audio Amplifier
All these engineering project content are in the stream of Electrical and electronics!
15 Watt Amplifier
150W MP3 Car Amplifier
24 Watt Class A Amplifier
Buffer Amplifier
Class-A//AB Amplifier
Audio Level Meter
Voice-Over Circuit
Simple 3 Transistor Audio Amp (50 milliwatt)
Improved 3 Transistor Audio Amp (80 milliwatt)
Audio Amplifier for Personal Stereo
Mosfet-Based Preamplifier for FM Radio DXing
Precision Amplifier With Digital Control
22 Watt Audio Amplifier
50 Watt Amplifier
FET Audio Mixer
Guitar Fuzz Effect
Microphone Mixer
Mono To Stereo Synthesizer
Sound Level Meter
Stereo Tube Amplifier
300W Subwoofer Power Amplifier
TDA2030 8 Watt amplifier
Single Chip 50 Watt / 8 Ohm Power Amplifier
Hi-Fi Preamplifier
MASTHEAD PREAMP
100W Guitar Amplifier Mk II
Simple Surround Sound Decoder
High Quality Audio Mixer
Simple Car Preamplifier and Artificial Earth
Loudspeaker Protection and Muting
Subwoofer Amp
Audio Auto Shutoff
10W Audio Amplifier with Bass-boost
Automatic Loudness Control
Portable Mixer
Minimalist Discrete Hi-Fi Preamp
(Discrete Opamp)
Thermo-Fan To Keep Your Amp Cool
Active Sub-Woofer and Controller
Audio Amp Output Power Limiter
Speech Amplifier Box
Mini-MosFet Audio Amplifier
Light Circuits
All these engineering project content are in the stream of Electrical and electronics!
12V stroboscope
Analogue light controlling desk
Four channel dimmer rack
Mini pocket stroboscope
Simple light bulb flasher
Strobo controller
Stroboscope trigger circuits
12 Volt Lamp Dimmer
12 Volt Lamp Fader (Automatic)
120 VAC Lamp Dimmer (full wave SCR)
2 Wire DC Lamp Dimmer Replaces Rheostats
230 Volt Dimmer
4 Channel dimmer rack
8 Bit Digital Light Intensity Controller
A Ballast that can Be Dimmed from a Domestic (Phase Cut) Dimmer
Circuit Delivers Dimming Control for White LED Driver
8 Photo-Detector Circuit Board
Dark Activated Switch or Porch Light Switch
Dark/Light Activated Relay
Dark-activated 230V Lamp
Dark-activated LED or Lamp Flasher
Day and Night Infrared Detection
10MHz TO 20MHz LASER LIGHT DETECTOR
30KHZ LIGHT RECEIVER AMP
40KHz LASER BURST DETECTOR
40KHz Light Detector with Sunlight Immunity
3v Low Battery Voltage Flasher
9v POWERED XENON PHOTOFLASH Controller
Flashing Rear-End Device For DCC Systems
Flashing-Cum-Running Light
LASER Transmitter/Receiver
PIC Light Chaser
Bike Light Flasher
Headlight Flasher
Battery-powered Night Lamp
Bedside Lamp Timer
Emergency Light & Alarm
All these engineering project content are in the stream of Electrical and electronics!
12V stroboscope
Analogue light controlling desk
Four channel dimmer rack
Mini pocket stroboscope
Simple light bulb flasher
Strobo controller
Stroboscope trigger circuits
12 Volt Lamp Dimmer
12 Volt Lamp Fader (Automatic)
120 VAC Lamp Dimmer (full wave SCR)
2 Wire DC Lamp Dimmer Replaces Rheostats
230 Volt Dimmer
4 Channel dimmer rack
8 Bit Digital Light Intensity Controller
A Ballast that can Be Dimmed from a Domestic (Phase Cut) Dimmer
Circuit Delivers Dimming Control for White LED Driver
8 Photo-Detector Circuit Board
Dark Activated Switch or Porch Light Switch
Dark/Light Activated Relay
Dark-activated 230V Lamp
Dark-activated LED or Lamp Flasher
Day and Night Infrared Detection
10MHz TO 20MHz LASER LIGHT DETECTOR
30KHZ LIGHT RECEIVER AMP
40KHz LASER BURST DETECTOR
40KHz Light Detector with Sunlight Immunity
3v Low Battery Voltage Flasher
9v POWERED XENON PHOTOFLASH Controller
Flashing Rear-End Device For DCC Systems
Flashing-Cum-Running Light
LASER Transmitter/Receiver
PIC Light Chaser
Bike Light Flasher
Headlight Flasher
Battery-powered Night Lamp
Bedside Lamp Timer
Emergency Light & Alarm
Door Bell Circuits
Friday, September 26, 2008
All these engineering project content are in the stream of Electrical and electronics!
BASEMENT DOORBELL BEEPER Birdie Doorbell Ringer
Ding-Dong Bell
Door Chime
Doorbell for the Deaf
Electronic Doorbell with Counter
Electronic Canary (Doorbell)
Fix Adds Door-Chime Repeater
Multi-Switch Doorbell with Indicators
Remote Doorbell Warning Switch
Self-Powered Door-Bell Watcher
Two Tone Generator
All these engineering project content are in the stream of Electrical and electronics!
BASEMENT DOORBELL BEEPER Birdie Doorbell Ringer
Ding-Dong Bell
Door Chime
Doorbell for the Deaf
Electronic Doorbell with Counter
Electronic Canary (Doorbell)
Fix Adds Door-Chime Repeater
Multi-Switch Doorbell with Indicators
Remote Doorbell Warning Switch
Self-Powered Door-Bell Watcher
Two Tone Generator
LED Circuits
All these engineering project content are in the stream of Electrical and electronics!
1.5 Volt Dual LED Flasher
40 LED Bicycle Light (555 Timer - 6 volt)
28 LED Clock
Two Transistor LED Flasher
LED Photo Sensor Circuit
Fading Red Eyes
LED Traffic Lights
16 Stage Bi-Directional LED Sequencer
AC Line powered LEDs
1.5V LED Flasher VERSION A
1.5V LED Flasher VERSION B
12v Lamp Current Indicator
LED or Lamp Pulser
Dancing LEDs
Fading LEDs
LEDs or Lamps Sequencer
Halloween Flashing-eyes Badge
7 Segment LED Counter
All these engineering project content are in the stream of Electrical and electronics!
1.5 Volt Dual LED Flasher
40 LED Bicycle Light (555 Timer - 6 volt)
28 LED Clock
Two Transistor LED Flasher
LED Photo Sensor Circuit
Fading Red Eyes
LED Traffic Lights
16 Stage Bi-Directional LED Sequencer
AC Line powered LEDs
1.5V LED Flasher VERSION A
1.5V LED Flasher VERSION B
12v Lamp Current Indicator
LED or Lamp Pulser
Dancing LEDs
Fading LEDs
LEDs or Lamps Sequencer
Halloween Flashing-eyes Badge
7 Segment LED Counter
Radio Circuits
All these engineering project content are in the stream of Electrical and electronics!
AM Receiver
ZN414 Portable Receiver
2 Transistor FM Voice Transmitter
FM Transmitter
4 Transistor Transmitter
FM Transmitter with Opamp
Band 2 Preamplifier
Superhet AM Broadcast Receiver
AM Broadcast Loop Antenna
Micro Power AM Broadcast Transmitter
FM Beacon Transmitter (88-108 MHz)
Medium-Power FM Transmitter
All these engineering project content are in the stream of Electrical and electronics!
AM Receiver
ZN414 Portable Receiver
2 Transistor FM Voice Transmitter
FM Transmitter
4 Transistor Transmitter
FM Transmitter with Opamp
Band 2 Preamplifier
Superhet AM Broadcast Receiver
AM Broadcast Loop Antenna
Micro Power AM Broadcast Transmitter
FM Beacon Transmitter (88-108 MHz)
Medium-Power FM Transmitter
Electronics: Timing Circuits
All these engineering project content are in the stream of Electrical and electronics!
Periodic Timer
Asymmetric Timer
24 Hour Timer
555 Pulse Generator
Repeating Interval Timer
Repeating Timer No.2
LM555 Timers - Circuits and Calculators
Long delay Timer
Bike Light Flasher
Headlight Flasher
All these engineering project content are in the stream of Electrical and electronics!
Periodic Timer
Asymmetric Timer
24 Hour Timer
555 Pulse Generator
Repeating Interval Timer
Repeating Timer No.2
LM555 Timers - Circuits and Calculators
Long delay Timer
Bike Light Flasher
Headlight Flasher
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