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LGKT004: FM Transmitter
A wireless frequency modulated (FM) transmitter is an aftermarket device that allows listeners to play a portable audio source through any radio with an FM band, such as a car stereo. It has no physical connection to the radio

 1 Days
 Intermediate
 359

LGKT005: Digital Thermometer
In the kit Digital Thermometer, thermometer is device to measure the temperature or temperature gradient using a variety of different principles.

 1 Days
 Beginner
 369

LGKT008: Automatic Light Controller
In the kit when darkness rises to a certain value then automatically light is switched ON and when there is other source of light i.e. day time, the light gets OFF.

 1 Days
 Beginner
 649

LGKT010: Simple Remote Tester Using T-Shop
In the kit Simple Sensitive Remote Tester USING T-SOP handy gadget for testing of infrared (IR) based remote control transmitters used for TVs and VCRs etc.

 1 Days
 Intermediate
 309

LGKT013: Short-Circuit Protection
The main circuit is protected from any damage due to short-circuit in the additional power supply circuit by cutting off the derived supply voltage. The derived supply voltage restores automatically when shorting is removed.

 1 Days
 Intermediate
 239

LGKT015: Binary To Decimal Decoder
In this circuit, we will build a BCD to 7 segment display decoder circuit using the 4511 chip. A BCD to 7 segment decoder circuit is a circuit that intakes a binary value and displays the equivalent decimal value on the 7 segment display.

 1 Days
 Intermediate
 289

LGKT018: Wireless Direction Control of DC Motor
The main objective of the kit Wireless Direction Control of DC motor is to providing an efficient and simple method for the control direction of DC motor using RF. This kit uses RF modules.

 1 Days
 Advanced
 1099

LGKT020: Laser Guided Door Opener
The objective of the kit Laser Guided Door Opener is to design a type of door arrangement which can be open using Laser guided torch and can be close using a Micro switch.

 1 Days
 Intermediate
 619

LGKT021: 7 Stage Binary Counter Display With LED
This circuit basically the base of the usability IC number CD4042 (7 Stage binary counter). By the circuit will regard the binary digit arrive at 128 BIT. Then show with LED 7 the make easy build the education.

 1 Days
 Advanced
 289

LGKT022: Bicycle Indicator
The kit bicycle indicator described here uses low-cost components and is a good substitute to many commercially available versions. It works in an extremely different manner and is convenient to operate.

 1 Days
 Beginner
 299

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

LGKT024: Wire Break Alarm with Delay
The kit Wire-Break Alarm With Delay activates after a delay of 15 to 30 seconds. When the thin-wire loop running across the entrance door is broken, the alarm sounds after a delay of 15 to 30 seconds, the time period set through variable resistance.

 1 Days
 Intermediate
 299

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

LGKT026: Water Pump Controller
The kit Water Pump Controller is based on water level which is a reliable circuit. When water overflowing starts the motor automatically off. This product is designed to control of motor (water pump). There are two open wires which are connected to indicate the level one is ground and other is level.

 1 Days
 Beginner
 959

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

LGKT031: Moving LED Light When An Audio Signal Is Provided
This kit LED Light movement the audio signal with LM358- IC4017 that have features of running pace with a changing voice, the tiny microphone for a fun. The circuit operates when a signal is to change the MIC audio signal and power amplifiers to be stronger.

 1 Days
 Intermediate
 379

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

LGKT033: Fire Alarm Using IR
The kit Fire Alarm an automatic fire alarm system is designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion.

 1 Days
 Beginner
 539

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

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

LGKT003: High-Intensity, Energy-efficient LED Light
This kit there is power available, the LED matrix will glow with the help of it and sideways the battery will also get charged which is of 12v but when the power will get off the LED matrix will be still turn ON but the power source will be battery which will be charge previously.

 1 Days
 Beginner
 519

LGKT009: Spy Ear (audio amplifier)
This kit Spy Ear light-weight gadget produces an adjustable gain on sounds picked up from the built-in high-sensitivity condenser microphone. So you can hear what you have been missing.

 1 Days
 Intermediate
 369

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

LGKT045: Numericai Water Level Indicator
Most water-level indicators for water tanks are based upon the number of LEDs that glow to indicate the corresponding level of water in the container. Here we present a digital version of the water-level indicator. It uses a 7-segment display to show the water level in numeric form from'0' to '9'

 1 Days
 Beginner
 429

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

LGKT049: Simple Water Level Indicator
The kit Simple Water Level Indicator Using Transistor is very easy to build four led for indication of levels in sequence and a buzzer is used to indicate over flow condition, for using the circuits attach the six wires or probes in the water tank at your desired level.

 1 Days
 Beginner
 279

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

LGKT052: DTMF Receiver IC MT8870 Tester
DTMF is a term which used in telephone industry. When any key on telephone or mobile phone is pressed one tone is generated and it is audible which is nothing but a DTMF tone.

 1 Days
 Intermediate
 389

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

LGKT066: Traffic Light Control
In the kit Traffic Light Control Traffic lights alternate the right of way of road users by displaying lights of a standard color (red, yellow/amber, and green), using a universal color code (and a precise sequence to enable comprehension by those who are color blind).

 1 Days
 Expert
 289

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

LGKT075: Christmas Decoration Project
The kit Christmas decoration is any of several types of decorations used at Christmas time. Typical icons of the holiday include Baby Jesus, Santa Claus, and the star of Bethlehem. This project is used to glow the different type led at different rates.

 1 Days
 Advanced
 469

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

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

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

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

LGKT056: AC Volatge level display
In this kit his simple test gadget gives visual indication of AC mains voltage from 160 volts to 270 volts in steps of 10 volts. There are twelve LEDs numbered LED1 to LED12 to indicate the voltage level.

 1 Days
 Intermediate
 589

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

LGKT059: Battery level indicator
The heart of this battery level indicator circuit is LM3914 IC. This IC takes input analog voltage and drives 10 LED’s linearly according to the input analog voltage. In this circuit there is no need of resistors in series with led’s because current is regulated by the IC.

 1 Days
 Expert
 379

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

LGKT069: Automatically Day indicator
his is Automatic day indicator circuit, by LED display each day one by one LED. Which use principal of light-activated in day with sun. To set a LDR-sensor and CD4017 acts as drive LED of 7 pcs for 7 day there.

 1 Days
 Advanced
 309

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

LGKT097: Flashing Beacon
Here we present a flashing beacon that uses well-known regulator IC LM317T. As LM317T regulator can deliver more than 1 amp. A small 12V, 10W bulb with a high-quality reflector can serve as a good visible blinker.

 1 Days
 Expert
 459

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

LGKT106: Piezo Electric Buzzer
In this kit we learn how to make a very simple buzzer using piezo electric transducer and hardly any electronic components. The simple buzzer circuit described here actually works in a quite unique way. Instead of the normal working concept employed by other forms of oscillators which require resistor and capacitor networks for generating the oscillations.

 1 Days
 Intermediate
 289