Simple Static Electricity Detector Circuit is like alarm for electricity when gathers on things like clothes. This happen when we rub things together. This kind of electricity can break small electronics so detector is useful near them. Detector have special sensor which feels electric change in air. Maybe its wire stick out or maybe flat […]
Sensors and Detectors
Simple Heat Sensor Circuit using a Single Transistor
This Simple Heat Sensor Circuit uses only one transistor and one special resistor like thermometer. When it get hot this resistor changes to how it work because of which the transistor sees this change. Transistor work like door and if temperature changes it opens or closes for electric. So the circuit can detect when something […]
Simple Touch Controlled Potentiometer Circuit
This touch control potentiometer circuit one just need to tap it and it will start to work. No need to turn knob or move the slider it just touches the sensor and it changes the resistance or voltage. It uses capacitive sensing which means that when one contacts it, the body will act as a […]
Simple Thunder Lightning Detector Circuit
This circuit explains how to construct a lightning detector a tool which is used by storm chasers! A special kind of energy is created in the sky by lightning. When a storm occurs this circuit detects the electricity and alert users by lighting up or emitting a sound. As a result one can get more […]
Simple Mobile Phone Detector Circuit using Op-Amp
Here is how to construct a circuit that can detect mobile phones in the area. It can detect the invisible radio signals that cell phones produce when they are turned ON and alert them if someone is using a phone in private places like a conference room or a library where they should not be. One […]
Simple Anti Corrosion Free Liquid Level Sensor Circuit
This circuit teaches how to construct a sensor that measures the level of liquid in a tank or other container. By delivering a small electrical signal it uses specific probes to detect whether liquid has touched them. This circuit design uses no harsh chemicals which helps avoid corrosion. Circuit Working: Parts List: Component Quantity Resistors […]