• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here: Home » Turn On LED in Dark With LDR and Arduino

By Abhishek Ghosh May 10, 2018 11:00 pm Updated on May 10, 2018

Turn On LED in Dark With LDR and Arduino

Advertisement

Why we are going towards apparently easy tutorials on Arduino than couple of years back? These basic projects with components are helpful to learn using sensor based logic. Was not LCD with LDR was difficult project? Why Automatic LED Control Using LDR and Arduino looks simillar? Our older guides were mostly just using modules with libraries and this guide has more at the end for creating complex projects. For future complex projects, we need the users to get used with handling the basic electronic components and manipulating code with understanding. Here is How to Turn On LED in Dark With LDR and Arduino. Very easy circuit diagram with minimum components. Here is small video on how the thing will look like :

 

Circuit and Code to Turn On LED in Dark With LDR and Arduino

 

We need the following components :

Arduino Uno or similar board
One LDR
One LED
One 10 K Ohm resistor
Breadboard
Jumper wires

Advertisement

---

You need to build the circuit like this :

Turn-On-LED-in-Dark-With-LDR-and-Arduino

Now, first run this code :

Vim
1
2
3
4
5
6
7
8
9
int LDR_Pin = A0;
void setup(){
Serial.begin(9600);
}
void loop(){
int LDRReading = analogRead(LDR_Pin);
Serial.println(LDRReading);
delay(250);
}

Open Arduino serial monitor and get values of reading at room, at dark and sunlight etc. Now, this is our final code for the thing we need :

Vim
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
int sensorReading;
void setup()
{
Serial.begin(9600);
pinMode(13,OUTPUT);
}
void loop()
{
sensorReading=analogRead(0);
if (sensorReading<1000)
{
digitalWrite(13,LOW);
}
else digitalWrite(13,HIGH);
Serial.println(sensorReading);
delay(500);
}

I set the (sensorReading<1000) based on my available light's reading on Arduino serial monitor. The mechanism how the values are being printed is described in Arduino Analog vs digital pin.

So, for your need, (sensorReading<1000) may be lower or higher than 1000. Secondly, you can add multiple LEDs by simple modification.

In real life, we need this action for electric lights. That will need using an Arduino relay module.

So, with one Arduino, one LDR, one resistor, one relay module, we can actually control many household bulbs in real life. Commercial unit for the same action would cost higher if you build the Arduino from components or use cheap China clone. Furthermore, you can adjust the value for different seasons.

Tagged With circuit to turn leds on when dark , using C language how to setup the density of LDR using different lights usinjg DELAY 5000 , turn in using ldr arduino , simple code to turn on led when ldr is darken , photo resistor included in the Arduino kit to turn on LED’s when darker , LDR makes LEDs light up in arduino , https://yandex ru/clck/jsredir?from=yandex ru;search;web;;&text=&etext=1828 dbpAPHYF1XtFDHAyXT8GQxKdsmacwunBUMiQATXBJs-1HJeW1wDn0X8un-V5Y1IA bcc566f1b0012ce97e392cc551f6db85dde09b19&uuid=&state=_BLhILn4SxNIvvL0W45KSic66uCIg23qh8iRG98qeIXme , how to make an led darker with a photon resistor with arduino , coding for ldr to turn on an led arduino , arduino circuit with led and ldr

This Article Has Been Shared 731 Times!

Facebook Twitter Pinterest
Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Orthopaedic Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to Turn On LED in Dark With LDR and Arduino

  • Arduino TM1637 Scrolling Text, Snake Examples

    Snake Animation Is Used In The Proprietary LED Displays To Indicate Working, Busy. Here Are Examples Of Arduino TM1637 Scrolling Text, Snake.

  • Arduino Sound Sensor Module Buying Guide

    There are Different Types of Arduino Sound Sensor Modules Available in the Market. Here is Brief Arduino Sound Sensor Module Buying Guide.

  • Arduino LDR/Photoresistor and LED Based Light Meter

    Exactly Like Basic Sound Meter With Microphone, We Can Build Arduino LDR/Photoresistor and LED Based Light Meter. Here is circuit & code.

  • Arduino 8×8 LED Dot Matrix Display With MAX7219 : Code

    Guide on Arduino 8×8 LED Dot Matrix Display With MAX7219 Code For Testing For the Beginners With One 8×8 LED Dot Matrix Board to Get Started.

  • Automatic LED Control Using LDR and Arduino

    Here is Circuit Diagram and Schematic To Build Automatic LED Control Using LDR and Arduino Project. It is Very Easy, Cheap and You Need Only One LDR, Resistor and LED.

Additionally, performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

You can subscribe to our Free Once a Day, Regular Newsletter by clicking the subscribe button below.

Click To Subscribe

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (21K Followers)
  • Twitter (5.3k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • How to Protect IP Cameras From Hackers February 25, 2021
  • 6 Sectors That Have Undergone Revamps in Digital Landscape February 24, 2021
  • What You Can Control with a Smartwatch and ESP32 February 23, 2021
  • What Does Data Cleansing Mean? February 21, 2021
  • How to Find the Right Software for Your Company February 20, 2021

 

About This Article

Cite this article as: Abhishek Ghosh, "Turn On LED in Dark With LDR and Arduino," in The Customize Windows, May 10, 2018, February 27, 2021, https://thecustomizewindows.com/2018/05/turn-on-led-in-dark-with-ldr-and-arduino/.

Source:The Customize Windows, JiMA.in

 

This website uses cookies. If you do not want to allow us to use cookies and/or non-personalized Ads, kindly clear browser cookies after closing this webpage.

Read Cookie Policy.

PC users can consult Corrine Chorney for Security.

Want to know more about us? Read Notability and Mentions & Our Setup.

Copyright © 2021 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy