How to Blink Multiple led Simultaneously

Blink Multiple led Simultaneously

Hi dear This is Arduino Fish Feeder Project and I will be simulating this circuit on proteus and you can go this link to find code and schematic of this project given below

Component List

Arduino UNO

Red Green and Blue LEDs

Resistors 220 ohm

Jumper Wires 

Bread Board

Watch tutorial

Circuit Diagram of this project

                                        Circuit Diagram

Code of this project

int red = 13; int intervalRed = 1000; //how long to delay in millis unsigned long previousRed = 0; int redState = LOW; int blue = 12; int intervalBlue = 1000; //how long to delay in millis unsigned long previousBlue = 0; int blueState = LOW; int green = 11; int intervalGreen = 1000; //how long to delay in millis unsigned long previousGreen = 0; int greenState = LOW; void setup() { Serial.begin(9600); pinMode(red, OUTPUT); pinMode(blue, OUTPUT); pinMode(green, OUTPUT); } void checkRed() { unsigned long currentMillis = millis(); if (currentMillis - previousRed >= intervalRed) { //save this reading! previousRed = currentMillis; //figure out if you should turn the LED on or off if (redState == LOW) { redState = HIGH; } else { redState = LOW; } digitalWrite(red, redState); } } void checkGreen() { unsigned long currentMillis = millis(); if (currentMillis - previousGreen >= intervalGreen) { //save this reading! previousGreen = currentMillis; //figure out if you should turn the LED on or off if (greenState == LOW) { greenState = HIGH; } else { greenState = LOW; } digitalWrite(green, greenState); } } void checkBlue() { unsigned long currentMillis = millis(); if (currentMillis - previousBlue >= intervalBlue) { //save this reading! previousBlue = currentMillis; //figure out if you should turn the LED on or off if (blueState == LOW) { blueState = HIGH; } else { blueState = LOW; } digitalWrite(blue, blueState); } } void loop() { checkRed(); checkGreen(); checkBlue(); }

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