Sensor Circuits
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Infrared (IR) Motion Detector Circuit with motion detector alarm and infrared sensor.The motion sensor circuit diagram and working is given in detail.... -
This simple circuit can be used as an aid for sensing the distance between the rear bumper of the car and any obstacle behind the car. The distance can be understood from the combination of the LEDs (D5 to D7) glowing. At 25cm D7 will glow, at 20 cm D7&D6.... -
PIR (Passive Infrared Radial) Sensor Based Security System, circuit diagram,working,applications.... -
Simple proximity detector circuit based on NE567 IC. Circuit switches an LED when the object comes near the sensor.... -
A simple remote control tester circuit with diagram and schematic using infra red sensor IC TSOP1738. An LED will blink when IR waves falls on it which indicates remote control functioning.... -
This is the circuit diagram of a very sensitive electromagnetic field sensor which can sense electromagnetic field from 40Hz to 140Hz. The low noise opamp LF351 and associated components forms the pick-up section. 1uH coil L1 is used for sensing the field.... -
A simple proximity detector (sensor) circuit diagram and schematic is shown and how to make it using proximity detector IC CS2009A-used for metal detector applications.... -
A simple Water level indicator project with circuit diagram for home and industry.This water tank level sensor can be used for any liquid level indicator projects.... -
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 back up power source like a battery to power.... -
This is just a fun/hobby circuit which can be used as a water sensor circuit or a liquid sensor circuit.What it does is sound an alarm in presence of water/liquid at its probes.... -
This simple heat sensor circuit could senses heat from various electronics device like computer, amplifier etc. and generate warning alarm. It could senses heat from environment also, but here I mention electronics device because it is being using mostly.... -
The following circuit shows about Infrared Motion Sensorcircuit diagram. Features: With NE555 IC, The detection zone coverage is 80 degrees .... -
Its resistance decreases when the temperature in its vicinity increases above one degree or more. Component: LED, Buzzer, Transistor, Capacitor, .... -
used to select modes of operation, the accelometer is used to generally move the snakearm while the hall effect sensors are designed to enable .... -
Function: applied in a toilet to keep track of that someone is inside exceeding a certain amount of time. Component: Resistor, IC, Capacitor, Transistor, .... -
Used for proximity detection and touch-controlled switching. for example, a finger comes close to the sensor, it creates a capacitance to Earth with a value of 30 to 100 pF. Component: Resistor, Capacitor, Diode, LM339D IC.. -
This circuit explain about alternate wireless switching using ultrasonic sensor. The distance of switching range should be more than 10 meters .... -
The Air Flow Sensor Circuit describes about sensing air flow using micro controller PIC16C781. Air flow is detected by the cooling effect of air .... -
In this circuit LM335 used to temperature sensor circuit, an IC that converts the ambient temperature into an equivalent output voltage .... -
This circuit shows a color sensor circuit diagram. The circuit is based on the fundamentals of optics and digital electronics. This circuit will .... -
This circuit bellow shows a simple voltage-controlled oscillator (VCO), coupled to your instrumentation by an optoisolator, the function for .... -
The following circuit shows about Ultrasonic Sensor Switch circuit diagram. This circuit based on the 555 Timer IC for Ultrasonic Transmitter, and .... -
The following circuit shows about Devantech SRF04 UltraSonic Sensor To The SV203 powered PPRK Circuit Diagram. This circuit based on the Devantech SRF04 sensor. Features: minimum of 10m sec to initiate the sonic pulse ( the trigger), fairly simple, held low.... -
The following circuit shows about Light Barrier Sensor Detector Circuit Diagram. Features: single transistor, The potentiometer is adjusted, 6V .... -
The following circuit shows about Simple Infrared Sensor Modules Circuit Diagram. Feature: simple infrared sensor module, flame detection, .... -
The following circuit shows about Simple Battery Charger With The Temperature Sensor. This circuit based on the LM350 IC. Features: negative .... -
The following circuit shows about Simple Light Sensor Circuit Diagram. Features: Crocodile Technology for simulate circuits working, LDR is high .... -
The following circuit shows about Line Follower Sensor Circuit Diagram. Features:Simple circuit, Infra-Red LEDs D1 and D2 will emit Infra-Red .... -
The following circuit shows about 12V PIR Sensor Timer Circuit Diagram. Features: 12 Volt DC, will turn on a floodlight or other device for a time .... -
The following circuit shows about Robotics IR Navigation Sensor Circuit Diagram. Features: one chip 74HC04, IR sensor will work in direct sun .... -
The following circuit shows about Sensor Circuit Of Analog Line Follower Robot. Features: controlled by a microcontroller, sensor circuit, a set .... -
The following circuit shows about Battery Powered Burglar Alarm Sensor Circuit. Features: foil tape and PIRs, such as magnetic-reed contacts, ....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
Transformer T1 supplies power to the heater of the sensor. Since the sensor is fairly sensitive...
When power is applied, the thermistor, a negative tc device, is at a high value. A1 saturates...
This circuit is a frequency meter, low cost. It covers region 1HZ until 1MHZ. The IC1 schmitt...
Here is a very useful project of an automatic street light or lamp circuit which can be used to...
This circuit is identical to the one in the Single Buss 1V/Octave Keyboard Controller. See the...
The Q-Switch driver for an old Yag laser died. A replacement was >$1000 so we built our own for...