resistance of the sensor changes with intensity of the light and consecutively output voltage also changes. The arduino board can be used along with LDR sensor in order to read the analog voltage. By programming threshold value in the code and reading the realtime values of the voltage from LD...
LDR (Light Dependent Resistor) as the name states is a special type of resistor that works on the photoconductivity principle means that resistance changes according to the intensity of light. Its resistance decreases with an increase in the intensity of light. It is often used as a light sens...
Insignal conditioning unit, the output of the sensor may be amplified, filtered or modified to the desired output voltage. For example, if we consider a microphone it detects the audio signal and converts to the output voltage (is in terms of millivolts) which becomes hard to drive an out...
This sensor shows low resistance in the daytime, around 100 ohms. Hence, the power flows across the LDR and ground going through resistors and variable resistors. This happens because ofLDR. During day time when light drops over the LDR, the resistance decreases as compared to other parts of...
This project uses a light dependent resistor. When light falls on the LDR sensor, then the resistance of the sensor decreases, which lead to activate an alarm to give an alert to the user. This project is suitable in the application of providing security system for lockers, cash boxes which...
In our day-to-day life, we got used to implement different differenttypes of sensor circuitsusing various types of sensors such asIR sensors, temperature sensor, pressure sensor, PIR sensor, and so on. Frequently, we observe PIR sensor circuit based automatic door opening system, LDR sensor ci...
These Arduino sensors made the implementation of many electronic projects possible. Some of the examples of such projects are Suntracker using LDR with Arduino, Arduino rainwater alarm, Accelerometer-based gesture-controlled Robot with Arduino, IR sensor-based line follower, IR sensor-based motion-sens...
Derived from two Greek words: Solen (pipe) and Eidos (coil), the solenoid is a type of electromagnetic device that converts electrical energy into mechanical energy. It is generally made by tightly wounding wires in a helix shape around a piece of metal. ...
1.LDR electric heating steam boiler principle of work and malfunction analysis;LDR电热蒸汽发生器工作原理及故障分析 2.The principle of work of slight oil ignition device is introduced.介绍了微油点火装置的工作原理,详细论述了微油点火装置的主要技术参数、系统组成及其主要设备。 3.Introduced new QBZ-63\...
Optocouplers featuring Schmitt trigger property are also available. This type of optocoupler is displayed above that includes a IC based optosensor having a Schmitt trigger IC that will convert a sine wave or any form of pulsed input signal into rectangular output voltage. ...