• 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 » Arduino : Turn On Particular Color LED Depending On Light/LDR

By Abhishek Ghosh September 12, 2018 2:26 pm Updated on September 12, 2018

Arduino : Turn On Particular Color LED Depending On Light/LDR

Advertisement

We have lot of getting started guide with LDR. How To Turn On LED in Dark With LDR and Arduino is the basic behind all of them. We can perform the same work using transistor – Turn On LED On Dark With Transistor. As the value of LDR will be variable depending on batch, you need to run the basic Turn On LED in Dark guide to note the values on serial monitor in various lighting situations like inside room, at dark and sunlight etc. With Arduino We an Turn On Particular Color LED Depending On Light/LDR With Simple Circuit and Easy Code. The basic logic is based on Control Multiple LED Depending on the Level of Light or with just this code when LDR is connected –

test.ino
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);
}

 

Code and Connection To Turn On Particular Color LED Depending On Light

 

We will use 4 LDR in this project. We need the following parts :

  1. Arduino UNO or similar board – ONE
  2. LDR – ONE
  3. 10K Ohm resistor – ONE
  4. LED – THREE (One RED, One Green, One Yellow)
  5. 220 Ohm resistors for LEDs – THREE
  6. Breadboard – ONE
  7. Jumpers – Few

This will be the circuit diagram (better to say connection) :

Advertisement

---

Arduino Turn On Particular Color LED Depending On Light LDR

We can write the logic in various ways, like –

example1.ino
Vim
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
int sensorPin = A0;
int ledPin1 = 11; //red LED
int ledPin2 = 10; //yellow LED
int ledPin3 = 9; //green LED
int sensorValue = 0; //minimum value from the sensor
 
void setup() {
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
}
 
void loop() {
 
sensorValue = analogRead(sensorPin);
 
if (sensorValue <= 10) {
// turn the ledPin on
digitalWrite(ledPin1, HIGH);
digitalWrite(ledPin2, LOW);
digitalWrite(ledPin3, LOW);
delay(100);
}
 
if  (sensorValue < 600 && sensorValue > 10) {
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, HIGH);
digitalWrite(ledPin3, LOW);
delay(200);
}
 
if (sensorValue >= 750) {
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, LOW);
digitalWrite(ledPin3, HIGH);
delay(400);
}
}

The values like that of 600, 750 are based on reading on serial monitor with my LDR. Your LDR likely to give different values and you may need to change it.

You can blink a particular colored LED with minimal modification in coding, like if you want to blink the red LED on dark and others to give stable light then you can write –

example2.ino
Vim
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
int sensorPin = A0;
int ledPin1 = 11; //red LED
int ledPin2 = 10; //yellow LED
int ledPin3 = 9; //green LED
int sensorValue = 0; //minimum value from the sensor
 
void setup() {
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
}
 
void loop() {
 
sensorValue = analogRead(sensorPin);
 
if (sensorValue <= 10) {
// turn on ledPin1
digitalWrite(ledPin1, HIGH);
digitalWrite(ledPin2, LOW);
digitalWrite(ledPin3, LOW);
delay(100);
// turn off ledPin1
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, LOW);
digitalWrite(ledPin3, LOW);
// effect will be like blinking
delay(100);
}
 
if  (sensorValue < 600 && sensorValue > 10) {
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, HIGH);
digitalWrite(ledPin3, LOW);
delay(200);
}
 
if (sensorValue >= 750) {
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, LOW);
digitalWrite(ledPin3, HIGH);
delay(400);
}
}

Tagged With multi blinking led in arduino , arduino ldr controller red yellow and green , led amarillo arduino , ldr light level and colours , ldr circuit using breadboard arduino and led , how to turn on LED a color arduino , coding an arduino board to turn an LED a color if a condition has passed , change led value based on sensor arduino , arduino make led change depending on value , turn on light on particular arduino

This Article Has Been Shared 356 Times!

Facebook Twitter Pinterest

Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, 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 Arduino : Turn On Particular Color LED Depending On Light/LDR

  • Methods and Components To Build Electronic Circuits

    We Have Discussed Some Details On Methods and Components To Build Electronic Circuits Which Are Needed To Create Ammeter Electronic Projects.

  • Arduino Multifunction Shield (HCARDU0085) : Features

    Arduino Multifunction Shield Has 4 Digit 7 Segment LED Display, 4 SMD LED, 10K Potentiometer, 3 Push Buttons, Buzzer And Lot of Interfaces.

  • Which Size of Battery to Choose For Electronics Works : AA, AAA, D, C

    Which Size of Battery to Choose For Electronics Works Among AA, AAA, D, C Sizes? All are of 1.5v but there are matters which need calculation.

  • Mechanical Counter for Arduino : Basic Information

    Here is Basic Information Around Mechanical Counter for Arduino as They are Difficult to Find Outside Industrial Usage. They Can Be Stepper Motor Counter With or Without Reset.

  • How to Write Arduino Library of Your Own

    Library of Arduino is Set of Instructions to Avoid Repeated Huge Coding. Here is Guide on How to Write Arduino Library of Your Own With Example.

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

Get new posts by email:

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 (24.3K Followers)
  • Twitter (5.8k 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

  • What is an Automatic Ethanol Fireplace February 8, 2023
  • Disadvantages of Cloud-Native Computing February 7, 2023
  • Projector Screen Basics February 6, 2023
  • What is Configuration Management February 5, 2023
  • What is ChatGPT? February 3, 2023

About This Article

Cite this article as: Abhishek Ghosh, "Arduino : Turn On Particular Color LED Depending On Light/LDR," in The Customize Windows, September 12, 2018, February 8, 2023, https://thecustomizewindows.com/2018/09/arduino-turn-on-particular-color-led-depending-on-light-ldr/.

Source:The Customize Windows, JiMA.in

PC users can consult Corrine Chorney for Security.

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

Copyright © 2023 - The Customize Windows | dESIGNed by The Customize Windows

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

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Do not sell my personal information.
Cookie SettingsAccept
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT