Non-Contact AC Mains Tester Circuit

The simple transistor based non contact AC mains tester circuit will allow you to test the presence of mains AC hum from a distance of about 3 inches. The LED and an optional buzzer will provide the required mains phase presence.   How the circuit Works As we can see in the above figure, 3 […]

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10 Channel Capacitive Touch Switch Circuit

In this article we are going to construct a capacitive touch switch circuit with 10 channel output, the state of the each channel can be turned ON and OFF sequentially by touching acoin sized metal plate. Capacitive touch is very commonly used in our smartphones, tablets or any gadgets which have touch screen. The term […]

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Non-Contact Voltage Detector Circuits Using Transistors and IC

In this post we are going to discuss a few non-contact voltage detector/tester circuits for checking the presence of active mains live wire. We will be understanding what non-contact voltage detector is, how it functions and how to make one using transistors and ICs. What is non-contact voltage detector? Non-contact voltage detectors are AC mains […]

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Simple PIR Motion Sensor Circuit Water Sprinkler

The automatic PIR motion sensor switch circuit will be able to quickly switch on a water sprinkler although it is possible to utilize it as a motion sensor light switch or motion activated security alarm as well. Before you start the building get in touch with your local electronics component seller and acquire a readymade […]

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How to Measure Distance using Arduino (Ultrasonic)

In this article we learn how to measure distance using Arduino which makes use of Ultrasound in order to calculate distance. Assessed distance is exhibited on LIQUID CRYSTAL DISPLAY. One incorporate the use of this particular digital output info to produce numerous fascinating initiatives for instance accident resistant automobile or Robots, item locator, Sonar (recognition […]

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Simple Vibration Detector Circuit

Regardless of whether it’s the audio across the street, the kitty purring softly, or perhaps a bump on the entrance, the detector explained in this simple vibration detector circuit does not skip a thing. Anytime this detects a noise or vibration, it gives off an ear-piercing sound.   The circuit draws on the application of […]

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Infrared Motion Detector Circuit

The article describes a basic infrared (IR) centered motion detector circuit which includes the IC LM567 for being sure dependable and quick and easy procedures. The circuit as well functions as a proximity or difficulty detector circuit. I discovered this design on the web while looking for a precise and trustworthy yet inexpensive proximity sensor […]

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How to Build a Thunder Lightning Detector Circuit

This easy circuit will allow you to imagine distant thunder lightning by means of a in the same way choreographed LED is shown, precisely in keeping with the lightning which may be happening anywhere in the distant sky, the reply is going to be simultaneous therefore a lot prior to the sound that could achieve […]

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How to Build a Insect Wing Signal Detector Circuit

The post talks about a VLF receiver circuit useful for detecting insect wing beat signals An extremely interesting electrical result effectively observed with the VLF are wing sounds activated when bugs like bees, flies, and mosquitoes fly within a few feet of the VLF whip antenna. The resulting signal is a buzzing noise practically the […]

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How to Make a Simple Shadow Detector Circuit

This shadow detector circuit functions making use of two LDRs and successfully finds the variance between the light levels and generates a loud audible alert siren. In circuits which utilizes a single LDR (photoresist), the detection might not be as sharp as with two LDRs mentioned right here. Operational information of the shadow detector circuit […]

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