What is a Piezoelectric Knock Switch? A knock switch is a simple electronic sensor that is used to operate AC/DC appliances with the application of mechanical force. It uses a piezoelectric plate or spring to … Read more
piezoelectric sensor
In this tutorial, we are making a project of a Simple sensitive knock sensor circuit. This circuit will blink three LEDs giving you a visual indication when any knock or vibration is detected at the … Read more
Simple Sensitive Knock Sensor with Piezo Electric
This project is of a super-sensitive vibration sensor (improved version). The purpose of this circuit is the same as a normal vibration sensor, to sense vibrations and activate the circuit and operate or control any … Read more
Super Sensitive Vibration Sensor – Improved Version
In this tutorial, we are making a project of an ultra-sensitive vibration sensor using a 555 timer and CA3140 IC. The purpose of this circuit is to sense any kind of vibration and switch on … Read more
Ultra-Sensitive Vibration Sensor using CA3140 IC
A doorbell, here described, is activated as soon as a door knock is heard on the door. It is simple, sensitive, and has a low-cost sensor-based circuit. This doorbell circuit is such that Piezo Electric … Read more
Door Knock Sensing Doorbell using Piezoelectric Sensor
In this tutorial, we are going to make a Doorknock sensing doorbell that activates when someone knocks on your door. This circuit is quite sensitive it can detect even a small knock and it’s super … Read more
Door Knock Sensing Doorbell using Piezoelectric
In this tutorial, we are making a project on the knock sensor circuit. This circuit is used to detect the door or table knocking and then activates the relay for a specific preset time. Any … Read more
Knock Sensor Circuit using Piezoelectric
In this tutorial, we are making a super-sensitive vibration sensor switch circuit. This circuit will sense the vibration and sound around it and switch on the relay. Any AC or DC appliance connected with the … Read more
Super Sensitive Vibration Sensor using Transistors
Today we are going to demonstrate a project on a “multidirectional seismic sensor” circuit. A “seismic sensor” is a device used to measure ground movement when it is shaken by an annoyance. The circuit is … Read more
Multidirectional Seismic Sensor using Piezoelectric & CA3140 IC
In this tutorial, we are developing a multipurpose vibration-sensing alarm that senses vibration and sounds an alarm. The circuit is very sensitive and it can measure extremely minor vibrations, which are delivered during the movement … Read more
Multipurpose Vibration Sensing Alarm with 555 Timer
A piezoelectric sensor is a device that uses a piezoelectric effect to measure the changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. Working principle When a force is … Read more