![]() ![]() You need a LDR and LED's to make this tutorial work for you, meanwhile if you how to work with relay you can interface relay to it and control your AC lights and fans to automatically turn on and off with light as an factor. The reason behind all this work is a tiny little component known as LDR (light dependent resistor) in the last lessons we have controlled the LED brightness by manually turning the knob of the potentiometer, we have a force on those potentiometer to set its value, just like that this LDR being controlled by the external light, its resistance will shoot up if the light intensity is low or it may go up based on the type of resistor material and manufacturing process. ![]() You need a Potentiometer or variable resistor to complete this tutorial, if possible check out google on how this potentiometer works and how it can vary the applied voltage when we rotating it, what is the principle behind it.Ĭhapter 4, Automatic Light Controller using LDRīack in the days, you might be wonder how a light automatically turn off or on based upon the light intensity, later on you would have understand how it works and what basically makes this thing to get work, you still could see a wall clock which strike every hour and stops in the night time or its volume getting decreased based upon the intensity of lights. ![]() In this video you will learn how to acquire analog signal and process on it using LabVIEW, analog signals are more useful and easy to read than digital, Sensors which gives different output based on its acting environment give analog output, when we read the signal into LabVIEW it varies from 0 to 5v based upon this level we can know the strength of the OUTPUT and we can do many things with this type of signal. Chapter 2 How to acquire analog signal into LabVIEW from ArduinoĪs you might be aware that LabVIEW is mostly used for acquiring signals from external devices and process on it, there are many hardware that are available with NI, but the thing is, it is so costly and cannot afford by many people, Arduino can be replace those devices in acquiring and performing on signals in low level, we cannot compare Arduino to NI hardware those hardware are beast and workhorse. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |