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LGKT019: Automatic Night Lamp with Morning Alarm
he kit Automatic Night Lamp with Morning Alarm automatically turns on a night lamp when bedroom light is switched off. The lamp remains ‘on’ until the light sensor senses daylight in the morning. A super-bright white LED is used as the night lamp.

 1 Days
 Beginner
 459

LGKT023: Adjustable Dancing Light Based on LED
The kit Adjustable Dancing Light can be used anywhere in party time You might have come across several types of adjustable dancing lights (flickering LEDs). Most of them use presets (variable resistors) to adjust the rate of switching.

 1 Days
 Advanced
 609

LGKT025: Electronic Heart
In this kit Electronic Heart glowing on and off, like a human heart beats. The circuit uses an NE555 timer wired in Astable multi vibrator mode. Its frequency of oscillations is determined by resistors and capacitor.

 1 Days
 Beginner
 269

LGKT027: Door Bell for Front and Back Door
This kit Door Bell for Front Door and Back Door produces two different sounds one for the front door and one for the back door. The circuit takes NO CURRENT when not producing a sound

 1 Days
 Intermediate
 309

LGKT032: Fastest- Finger- First- Indicator
The kit fastest finger first quiz-type game shows are increasingly becoming popular on television these days. In such games, fastest finger first indicators (FFFIs) are used to test the player’s reaction time.

 1 Days
 Intermediate
 379

LGKT034: School Bell Alarm
In the kit School Bell Alarm when peon wants to beep the school bell then they have to press the momentary switch then school bell is on for few second according to the value of resistance and capacitance. We can change the on time the changing by capacitor and resistance.

 1 Days
 Beginner
 529

LGKT035: Staircase Light With Auto Switch- Off
In the kit staircase light with auto switch off the switch is such adjusted so that when the person comes near the stair it is pressed. This press of the switch sends logic low to the trigger pin2 of the LM555 IC which generates an active high output on pin 3.The IC is used in mono-stable state.

 1 Days
 Advanced
 559

LGKT036: Coin Based Mobile Charger
The objective of this kit coin based prepaid charger is inserting the coin using charge for your mobile phone in public places. In this kit coin based prepaid charger the first block is power supply in which the input is 230V AC

 1 Days
 Beginner
 589

LGKT037: Servo Motor Tester
The kit Servo Motor Tester can be used to manually operate a servo motor clockwise and anti-clockwise direction. By pushing the forward or reverse button for a short period of time you can control the rotation of the servo.

 1 Days
 Intermediate
 519

LGKT039: Electronic Cricket Match
This kit electronic cricket match is a present for Kids. This circuit can be used to play Cricket Match with your friends. This kit can use to play cricket for kits, Each LED in the circuit indicates various status of the cricket match like Sixes, Run out, Catch etc.

 1 Days
 Intermediate
 289

LGKT028: Flasher For Dipawali using BT136
The objective of the kit Flasher for Deepawali is to design a circuit for a portable electric lamp-cum-LED flasher. It uses a 25W, 230V AC bulb and nine LEDs. When the bulb glows all the LEDs remain 'off, 'and when the LEDs glow the bulb remains 'off.'. In this kit Flasher for Deepawali .

 1 Days
 Advanced
 509

LGKT040: Driving A Bicolor LED
In the kit driving a Bicolor LED, Bi-color LEDs often contain both green and red LEDs connected in ‘inverse parallel’. This means if current flows one way through the device the LED lights green, and if current flows the other way the LED lights red.

 1 Days
 Beginner
 249

LGKT042: Night Vision Enhancer
In the kit Night Vision Enhancer green LED based flashlights are widely used by hunters and others in similar activities to light up their way and alert other hunters of their presence. Green light does not interfere with the hunt, as animals are blind or indifferent to green light. Green is also a good night-vision retention color that allows one to distinguish colors such as yellow and red on maps and charts.

 1 Days
 Beginner
 259

LGKT043: Positive to Negative Voltage Converter
The advantage of the kit Positive to Negative Voltage Converter is that, the negative voltage together with the original positive supply can be used to simulate a dual supply.

 1 Days
 Beginner
 249

LGKT044: Door Knock Alarm With Timer
This low-cost circuit uses the piezoelectric element of a piezobuzzer as the input sensor. The piezoelectric element plate is fixed at the centre of the door wing by using a cello tape. Apply a small quantity of adhesive at the edges between the plate and the door.

 1 Days
 Intermediate
 439

LGKT048: DC Motor Control Using A single Switch
In the kit DC Motor Control using a Single Switch DC motor will be run in clockwise or anti-clockwise direction and stop it using a single switch. It provides a constant voltage for proper operation of the motor.

 1 Days
 Advanced
 929

LGKT051: Voltage Doubler
Most of this project is circuit used for doubling the voltage uses the principle of charging and discharging the capacitor. The voltage doubler circuit described below is used to double the input DC power by using IC 555 timer with capacitors and diodes.

 1 Days
 Beginner
 289

LGKT053: Speed Control Of Uni-Polar Stepper Motor
A unipolar stepper motor only operates with positive voltage, so the high and low voltages applied to the electromagnetic coils would be something like 5V and 0V. In this project the pulse given to stepper motor from 555 timer time, timer given pulse to decade counter IC CD4017.

 1 Days
 Expert
 919

LGKT062: Light Controlled Sound Effects
A sound effects generator that is controlled like a theremin and makes very unique sounds using two 555 timers. One time is a low frequency signal generator that modulates the other 555 timer with triangle-like waveform.

 1 Days
 Advanced
 369

LGKT063: Transistor Tester
In the kit Transistor Tester a transistor analyzes, suitable for testing both NPN and PNP transistors. In the kit Transistor Tester the 555 operates at 2Hz. The Output of pin 3 drives the circuit with a positive then zero voltage. The other end of the circuit is connected to a voltage divider with the mid-point at approx 4.5v.

 1 Days
 Beginner
 469

LGKT068: Dice Project
The kit Dice Project a die is a small throw able object with multiple resting positions, used for generating random numbers. This makes dice suitable as gambling devices for games like craps, or for use in non-gambling tabletop games.

 1 Days
 Advanced
 299

LGKT071: Continuity Tester
The kit Continuity Tester circuit will detect continuity between two points. Basically this circuit used as any PCB testing, continuity testing, wire testing etc.

 1 Days
 Beginner
 309

LGKT072: Electronic Lock Project
In the kit Simple Electronic Locke Project ,electric lock connected to an access control system include: key control, where keys can be added and removed without re-keying the lock cylinder; fine access control, where time and place are factors; and transaction logging, where activity is recorded.

 1 Days
 Beginner
 269

LGKT073: Adjustable 1-10 Minute Timer Project
In the kit Adjustable 1-10 Minute Timer Circuit a timer is a specialized type of clock. A timer can be used to control the sequence of an event or process. Whereas a stopwatch counts upwards from zero for measuring elapsed time, a timer counts down from a specified time interval, like an hourglass.

 1 Days
 Intermediate
 279

LGKT076: Model Railway Signal Project
In the kit Model Railway Signal Project Railway signaling is a system used to control railway traffic safely, essentially to prevent trains from colliding.

 1 Days
 Beginner
 589

LGKT077: Model Railway Level Crossing Light
In the kit Model Railway Level Crossing Light a level crossing occurs where a railway line is intersected by a road or path on one level, without recourse to a bridge or tunnel.

 1 Days
 Intermediate
 309

LGKT079: Rain Alarm
Here is an easy project which will give the alarm when there is rain. Rain water detector will detect the rain and make an alert; rain water detector is used in the irrigation field, home automation, communication, automobiles etc.

 1 Days
 Beginner
 439

LGKT081: H-Bridge Using 555 Timer
n the kit H-Bridge Using 555 Timer we will design a circuit which drives a motor in Clockwise/Anti-clock via 10k to 100k preset. The direction of the motor depends on the polarity of the applied voltage. Here with the help of two LM555 timers IC, we are controlling the direction of dc motor.

 1 Days
 Intermediate
 789

LGKT087: LED Based Running Display
In the kit LED based running display creates an eye-catching running display effect using LEDs. It can be used to light up borders of animations, pictures, etc, and also for short word displays.

 1 Days
 Advanced
 539

LGKT094: H-Bridge with PWM Using 555
The kit H-Bridge with PWM uses 555 Pulse width modulation (PWM) means generating an analog signal from a digital signal. A PWM output consists of a series of alternating high and low signals, with the on and off.

 1 Days
 Intermediate
 789

LGKT095: LED Dimmer
In the kit LED Dimmer we can adjust the brightness of one or more LEDs from 5% to 95%. The kit LED Dimmer This project uses PWM technique to dim the intensity of the LED light. Here, the DC source is connected to NE555 timer.

 1 Days
 Intermediate
 249

LGKT100: Adjustable Timer Circuit
The kit Roulette is a casino game named after a French diminutive for little wheel. In the game, players may choose to place bets on either a single number or a range of numbers, the colors red or black, or whether the number is odd or even.

 1 Days
 Intermediate
 509

LGKT054; Digital touch switch and alarm
This is Touch Switch ON-OFF circuit used a part compares with voltage 2 group , within the integrated circuit timer LM555 or NE555. For perform wait for catch the change of voltage

 1 Days
 Beginner
 319

LGKT058: Door Mat switch
This simple Simple Mat Switch Circuit Diagram produces a warning beep when somebody crosses a protected area in your home or office. The switch, hidden be-low the floor mat, triggers the alarm when the person walks over it.

 1 Days
 Advanced
 299

LGKT060: Toy orger Cum Mini Casio
he kit Toy Organ produces a tone according to the button being pressed. Only 1 button can be pressed at a time, that's why it is called a monophonic organ.

 1 Days
 Beginner
 349

LGKT078: LED Chaser with Variable Speed
This project is based on LED flashing,If you want to build a 10 LED Chaser circuit we suggest this circuit first. It uses popular IC is a simple and affordable IC-4017 decade counter and IC-555.

 1 Days
 Beginner
 499

LGKT089: 555 Timer Based Binary Counter
Here we are discussing a simple circuit using 555 timer IC as an ASTABLE MULTIVIBRATOR. This circuit make an LED blink for every half second, and the square wave output of 555 IC is connected to a BINARY counter of 8bit (74HC4040).

 1 Days
 Intermediate
 359

LGKT090: Laser security alarm
Security is main concern for various buildings, houses and offices. For this purpose, there are a variety of security alarms available in market which uses various types of technology for intruder detection like infrared sensors, motion sensors, ultrasonic sensors, laser sensors, etc.

 1 Days
 Expert
 339

LGKT092: Clock with LED Pendulum And Tick Tock sound
Electronic clock with LED pendulum & tick tock sound produces Tick Tock sound every second and it has a LED pendulum in which 6 LED glow in forward and reverse sequence like a Pendulum

 1 Days
 Intermediate
 386

LGKT098: Roulette Game
The objective of a kit Roulette is to design a circuit creates a rotating LED that starts very fast when pressed the switch. When relieve the , the rotation slows down and finally stops.

 1 Days
 Intermediate
 529

LGKT099: Sound Generator With Multiple Sound
Here is the circuit that produces five tones. This is a simple toy piano circuit with 555 timer. We can also use this circuit as a Machine gun. Main heart of this circuit is 555 timer IC. The 555 timer is operated in astable multi-vibrator mode. In astable multi-vibrator mode, the circuit produces accurate free running waveforms, which can be adjusted.

 1 Days
 Intermediate
 319

LGKT102; Night Security Alert
In this kit The output has only two states high and low and cannot remain in any intermediate stage. In night time if any thief trying to open the door light fall on the LDR then. The result as a sound will be generate to a time period

 1 Days
 Intermediate
 299