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With Arduino, almost everything seems to be too friendly when it comes to interfacing various sensors, shields, add-ons or any other utility devices. Just because the Arduino coding environment is so user-friendly, anyone can do it. So in this post, I will just show you how to hook up your sensors to Arduino and get them running. Let's start with the very basics.... Sensors What is Sensor Sensors are those electronic components which convert physical data into electronic data. This data is in analog format and is fed to the microcontroller on the Arduino board. The microcontroller has inbuilt ADCs (Analog-2-Digital Converter) which processes this data and converts it into digital format. And once you have received the (electronically converted) physical data, you can make your Arduino perform as you want. How To Interface LDR With Arduino Arduino Distance Measurement Using Ultrasonic Sensor On your Arduino board, there are analog pins named as A0, A1, A2, A3, A4, A5. The number of ...

We are living in the world where everything goes to be automatic from your washing machine to your ceiling fan. Street lights are one of those examples of the automatic world. Automatic street light are those light which needs no manual operation to gets turn ON and turn OFF. Did you ever try to make such kind of street lights that gets turn ON and turns OFF automatically? In this article, we are going to make automatic street light using LDR and 555 timer IC. List of Components   555 Timer IC LDR LED Potentiometer Resistor 1* 1k ohm  Resistor 1* 220 ohm 9V Battery Printed Circuit Board(PCB) Or BreadBoard  Circuit Diagram A very simple circuit diagram of automatic street light is given below.  Automatic Street Light Controller Circuit Principle and Working of Automatic Street Light Controller 555 Timer IC is the main part of the circuit that works as a comparator. All the working of this circuit depends on the working of the 555 timers Ic.To know more about 555 time...

Hello, Friends hope all of you playing with your arduino and currently need to try to do another cool projects on arduino. Therefore, this tutorial is for you. During this tutorial, we interface LDR(Light dependent Resister) with the arduino board. It is very simple tutorials for arduino students, hobbyist, and beginners. Before going more we must find out how LDR is dependent on Light. What is LDR  LDR(Light dependent Resister) or a photoresistor is a light dependent variable resistor that resistance decreases with the increase in the intensity of light. This gives an analog value so that it is connected to an analog pin of arduino board. A simple LDR is shown within the image and to buy an LDR click on the below image Circuit Diagram A simple circuit diagram is shown in the image. We won't use LDR directly within the circuit in order that a potential divider circuit is used with a 10K resistor. In this circuit one pin of LDR is connected to Analog pin A0 of arduino UNO and ...