Light sensor circuit Light sensor Circuit Diagram Current sensor circuits are used extensively in systems such as battery management systems in order to detect the current to monitor for overcurrent, a short circuit, and the state of charge of the battery system. It is low cost and relatively simple to implement. The second approach is using a hall effect sensor. This is used more for high In case of digital circuits a simple modification will make it more efficient since digital circuits deal with high and low level voltages that is logic 1 and logic 0 and using analog output values may lead to false triggering of digital levels. LDR can be replaced with thermistor in order to turn into a simple temperature sensor circuit

I want to make a simple automatic hand senetizing machine using - IR sensor module, motor pump, spray nozzle and timer circuit. Working of circuit : when ir module sense hand it turns on pump. The pump is connected to a nozzle spray pipe and it spray senetizing liquid on hands for few seconds (1-10) then the spray process will stop

How to Build a Touch Sensor Circuit Circuit Diagram
In this project, you will build a touch sensor circuit. It's a cool and simple circuit that allows you to control an LED with the touch of a finger. And you only need three components, how cool right? You can build this circuit if you're a total beginner. The Touch Sensor Circuit Diagram.

About: HC-SR04 Ultrasonic Sensor is a simple ultrasonic sensor that can measure distance up to 400 cm. The sensor has 4 onboard pins that connect to a microcontroller like Arduino.d Waves. Objective: To make a circuit using an Ultrasonic sensor and Arduino which indicates the object in front by producing a beep sound. This circuit can act Simple Water Sensor: I will Teach you how to make a simple water sensor circuit . Projects Contests Teachers Simple Water Sensor. By Cyberscann54 in Workshop Science Here is how to setup the circuit to run on 12 volts from a car battery the circuit is still the same just some resistors are added to the probes to protect the transistor and a

Simple Light Detector With Sensitivity Control Circuit Diagram
In this tutorial, we are going to make a Simple Water Level Sensor Or Liquid Level Detector circuit. This circuit measures or detects a required level of water, liquid, or any fluid. The circuit diagram is quite simple with only a few components but it can perform a great number of tasks as a monitor for the desired level of any fluid. This project features a compact design and an all SMD component based circuit, making this sensor module very compact for it's range. This build is a pretty simple build and does not require a whole lot of components. How ever a few essential things are required to make the PCB since it is a SMD based circuit. The 330K Ohm Resistor and LED can be replaced with virtually anything to trigger a signal or an event. For example, a 9 Volts Relay would be used to make an absence-of-light activated switch. To make this circuit operate in reverse (the LED turns on when there is light), simply just exchange the positions of the Variable Resistor and the LDR.
