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LGKT006: Letterbox With Letter-Counting Facility
Here is a circuit that starts counting when you insert a letter in the letterbox at your home or office. It is designed to save your time from going to the letterbox to check if there are letters inside. The number of letters present in the box is indicated by a seven-segment display.

 1 Days
 Expert
 429

LGKT007: Water Level Indicator
This Kit water-level indicator uses a 7-segment display, instead of LEDs, to indicate the water level (low, half and full) in the tank. Moreover, a buzzer is used to alert you of water overflowing from the tank. The circuit shows the water level by displaying L, H and F for low, half and full, respectively.

 1 Days
 Intermediate
 379

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

LGKT012: Gas Leakage Detection Alarm
This kit Gas Leakage Detection Alarm is based on gas leakage system and its control. In this kit we can simply detect the gas leakage using MQ6 gas sensor and when it senses the gas, alarm will be enable to show the alert.

 1 Days
 Expert
 639

LGKT017: Anti Collision Real Light
The kit Anti Collision Real Light uses a Dual operational amplifier IC LM358 which is used as a comparator in inverting mode by setting a reference voltage with the help of preset. The output of LM358 drives the ULN2003 which drives the relay to activate the light which is DC bulb.

 1 Days
 Beginner
 539

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

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

LGKT029: Cell Phone Detector
The most common electronic equipment used is cell phones. With advancement in communication technology, the requirement of cell phones has increased manifold. A cell phone typically transmits and receives signals in the frequency range of 0.9 to 3GHz.

 1 Days
 Expert
 329

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

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

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

LGKT001: ATM Machine Gate Security System
This kit ATM Machine Gate Security System is an effort to design a security system for the ATM machine gates or ATM machine. The arrangement requires proper implantation to work. If someone forcibly opens the gate or try to move the ATM machine from its position it will blow an alarm.

 1 Days
 Intermediate
 449

LGKT002: Motion Sensor For Security Light
The kit Motion Sensor for Security Light is designed to detect the motion in the room and put on the room light when there is a motion. The project uses a PIR sensor to detect the motion and the analog and digital circuit to put on the light for the particular duration of the time.

 1 Days
 Advanced
 749

LGKT047: Automatic Street Light Control
The kit Automatic street light control needs no manual operation for switching ON and OFF when there is need of light. It detects itself whether there is need for light or not. 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
 569

LGKT057: Blown Fuse Indicator
In the kit Blown Fuse Indicator Fuse is a common device that is used in every electrical or electronics equipments or devices. Fuse is a protective element of every device which protects the electrical equipments against high voltage

 1 Days
 Expert
 509

LGKT061: Over Temperature Alarm With Fan ON
The over-temperature monitoring alarm circuit from the integrated circuit temperature sensor for temperature measurement devices, it only set a maximum limit of temperature control points. When the temperature exceeds the limit temperature, the alert sound, prompting the user attention.

 1 Days
 Beginner
 819

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

LGKT083: Hit Switch
This kit Hit Switch is the electronic equivalent of a conventional switch. It can be used to control the switching of a variety of electronic devices. The circuit of the hit switch uses a piezoelectric diaphragm (piezobuzzer) as the hit sensor.

 1 Days
 Beginner
 619

LGKT085: Cash Box Guard
In the kit Cash Box Guard here is a smart security circuit for your cash box that thwarts the theft attempt by activating an emergency beeper.

 1 Days
 Intermediate
 599

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

LGKT064: Alcohol Level Tester
This is a very useful circuit for testing whether a driver is drunk or not. The circuit is easy to use, inexpensive and indicates various levels of alcohol consumption through LEDs.

 1 Days
 Intermediate
 929

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

LGKT070: Self switching power supply
The main concept of this project is to design a circuit which is used to turn off the power supply automatically when no current is drawn by the load. The current drawn by the load can be varied by using the potentiometer setting. The proposed system uses a rectifier and other electronic devices. Based on the condition of the load, the power supply is controlled by the relay and transistor arrangement in the circuit.

 1 Days
 Expert
 589

LGKT074: PIR Motion Detector & Audio Recorder with Playback
This project is basicaly used for security purpose. In this kit a pir sensor used for the detection of any moving person. first of all you can record the message, for example if you used for security purpose the this system is active ,if any person moov in front of the PIR sensor its detect and sounding the recoprdabe message

 1 Days
 Expert
 1169

LGKT082: Metal Detector
his is the set up.When the metal detector circuit is placed near to a metal object the inductance of its coil changes , and so do the frequency of oscillations.Now the two frequency will be different , there will be no cancelling and radio produces a hissing sound.The metal is detected.

 1 Days
 Expert
 259

LGKT086: Multi Gate Door Bel
This door-opening alarm alerts you of intruders. You can use it for up to three doors. You simply need to fit a small unit including reed switch on each doorframe and fix a magnet on the moving door such that the magnet aligns with the reed switch when the door is closed.

 1 Days
 Beginner
 529

LGKT093; Curtain Opener and closer
This circuit will open and close the curtain of your home and office just by pushing a switch. So with the help of this unique circuit, we do not need to move from one place to open and close the curtain.

 1 Days
 Expert
 1029

LGKT096: Automatic Plant Irrigation System
The irrigation is the only when there is not enough moisture in the soil and the sensors decides when should the pump be turned on/off, saves a lot time for the farmers. This also gives much needed rest to the farmers, as they don’t have to go and turn the pump on/off manually.

 1 Days
 Beginner
 509

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

LGKT103: AC Power Supply fail alarm
Here is a simple mains power failure alarm/detector circuit that produces an alarm whenever the mains supply fails. Lot of such circuits are available, but the peculiarity of this circuit is that it requires no backup power source like a battery to power the alarm when the mains is absent.

 1 Days
 Expert
 519

LGKT104: DC Over Voltage Trip
This voltage protection circuit is designed to develop a high-voltage tripping mechanism to protect a load from any damage. In many of the homes and industries fluctuations in DC supply take place frequently.

 1 Days
 Expert
 249