Official Release

Author: ArduinoGetStarted

README.md

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+## LED Library for Arduino - ezLED
+This library is designed for Arduino, ESP32, ESP8266... to control LED: on, off, toggle, fade in/out, blink, blink the number of times, blink in a period of time. It is designed for not only beginners but also experienced users.
+
+**ezLED** stands for **easy LED**, which mean that the library is easy to use.
+
+Features
+----------------------------
+* Turn on/off
+* Toggle between on and off
+* Fade in/out
+* Blink
+* Blink with the number of times
+* Blink in a period of time
+* Cancel the blinking or fading anytime
+* Support both control modes: CTRL_ANODE and CTRL_CATHODE
+* Get the on/off LED's states: LED_OFF, LED_ON
+* Get the operation LED's state: LED_IDLE, LED_DELAY, LED_FADING, LED_BLINKING
+* All functions are non-blocking (without using delay() function)
+* Easy to use with multiple LEDs
+
+Available Functions
+----------------------------
+* ezLED(int pin)
+* ezLED(int pin, int mode)
+* void turnON()
+* void turnON(unsigned long delayTime)
+* void turnOFF()
+* void turnOFF(unsigned long delayTime)
+* void toggle()
+* void toggle(unsigned long delayTime)
+* void fade(int fadeFrom, int fadeTo, unsigned long fadeTime)
+* void fade(int fadeFrom, int fadeTo, unsigned long fadeTime, unsigned long delayTime)
+* void blink(unsigned long onTime, unsigned long offTime)
+* void blink(unsigned long onTime, unsigned long offTime, unsigned long delayTime)
+* void blinkInPeriod(unsigned long onTime, unsigned long offTime, unsigned long blinkTime)
+* void blinkInPeriod(unsigned long onTime, unsigned long offTime, unsigned long blinkTime, unsigned long delayTime)
+* void blinkNumberOfTimes(unsigned long onTime, unsigned long offTime, unsigned int numberOfTimes)
+* void blinkNumberOfTimes(unsigned long onTime, unsigned long offTime, unsigned int numberOfTimes, unsigned long delayTime)
+* void cancel(void)
+* int getOnOff(void)
+* int getState(void)
+* void loop(void)
+ 
+
+Available Examples
+----------------------------
+* [LED Blink](https://arduinogetstarted.com/library/led/example/arduino-led-blink)
+* [LED Blink In Period](https://arduinogetstarted.com/library/led/example/arduino-led-blink-in-period)
+* [LED Blink Number Of Times](https://arduinogetstarted.com/library/led/example/arduino-led-blink-number-of-times)
+* [LED Fade In Fade Out](https://arduinogetstarted.com/library/led/example/arduino-led-fade-in-fade-out)
+* [LED On Off](https://arduinogetstarted.com/library/led/example/arduino-led-on-off)
+* [LED Toggle](https://arduinogetstarted.com/library/led/example/arduino-led-toggle)
+* [Multiple LED](https://arduinogetstarted.com/library/led/example/arduino-multiple-led)
+* [LED Array](https://arduinogetstarted.com/library/led/example/arduino-led-array)
+
+
+
+How To Install the Library
+----------------------------
+* [ezLED Library Installization Guide](https://arduinogetstarted.com/tutorials/arduino-led-library)
+
+References
+----------------------------
+* [ezLED Library Reference](https://arduinogetstarted.com/tutorials/arduino-led-library)

examples/LEDArray/LEDArray.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-array
+
+   This example blinks 3 LED:
+   + blink one LED forever
+   + blink one LED in 5 seconds
+   + blink one LED in 10 times
+   + without using delay() function. This is a non-blocking example
+*/
+
+#include <ezLED.h> // ezLED library
+
+#define NUM_LED 3 // three LEDs
+
+#define PIN_LED_1 7
+#define PIN_LED_2 8
+#define PIN_LED_3 9
+
+ezLED ledArray[NUM_LED] = {
+  ezLED(PIN_LED_1),  // create ezLED object that attach to pin PIN_LED_1
+  ezLED(PIN_LED_2),  // create ezLED object that attach to pin PIN_LED_2
+  ezLED(PIN_LED_3)   // create ezLED object that attach to pin PIN_LED_3
+};
+
+void setup() {
+  Serial.begin(9600);
+
+  ledArray[0].blink(500, 500);                  // 500ms ON, 500ms OFF, blink immediately
+  ledArray[1].blinkInPeriod(100, 100, 5000);    // 100ms ON, 100ms OFF, blink in 5 seconds, blink immediately
+  ledArray[2].blinkNumberOfTimes(250, 750, 10); // 250ms ON, 750ms OFF, repeat 10 times, blink immediately
+}
+
+void loop() {
+  for (int i = 0; i < NUM_LED; i++)
+    ledArray[i].loop(); // MUST call the led.loop() function in loop()
+
+  // print the operation state
+  for (int i = 0; i < NUM_LED; i++) {
+    Serial.print("LED ");
+    Serial.print(i + 1);
+
+    if (ledArray[i].getState() == LED_DELAY)
+      Serial.println(" DELAYING");
+    else if (ledArray[i].getState() == LED_BLINKING)
+      Serial.println(" BLINKING");
+    else if (ledArray[i].getState() == LED_IDLE)
+      Serial.println(" BLINK ENDED");
+  }
+
+  // DO SOMETHING HERE
+}

examples/LEDBlink/LEDBlink.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-blink
+
+   This example blinks LED:
+     + blink led
+     + without using delay() function. This is a non-blocking example
+*/
+
+#include <ezLED.h> // ezLED library
+
+ezLED led(9);  // create a LED object that attach to pin 9
+
+void setup() {
+  Serial.begin(9600);
+  led.blink(250, 750);         // 250ms ON, 750ms OFF, blink immediately
+  //led.blink(250, 750, 1000); // 250ms ON, 750ms OFF, blink after 1 second
+}
+
+void loop() {
+  led.loop(); // MUST call the led.loop() function in loop()
+
+  if (led.getState() == LED_BLINKING)
+    Serial.println("BLINKING");
+  else if (led.getState() == LED_IDLE)
+    Serial.println("BLINK ENDED");
+
+  // To stop blinking immediately, call led.cancel() function
+}

examples/LEDBlinkInPeriod/LEDBlinkInPeriod.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-blink-in-period
+
+   This example blinks LED:
+     + blink 10 seconds
+     + without using delay() function. This is a non-blocking example
+*/
+
+#include <ezLED.h> // ezLED library
+
+ezLED led(9);  // create a LED object that attach to pin 9
+
+void setup() {
+  Serial.begin(9600);
+  led.blinkInPeriod(250, 750, 10000); // 250ms ON, 750ms OFF, blink in 10 seconds, blink immediately
+  //led.blinkInPeriod(250, 750, 10000, 1000); // 250ms ON, 750ms OFF, blink in 10 seconds, blink after 1 second
+}
+
+void loop() {
+  led.loop(); // MUST call the led.loop() function in loop()
+
+  if (led.getState() == LED_BLINKING)
+    Serial.println("BLINKING");
+  else if (led.getState() == LED_IDLE)
+    Serial.println("BLINK ENDED");
+
+
+  // To stop blinking immediately, call led.cancel() function
+}

examples/LEDBlinkNumberOfTimes/LEDBlinkNumberOfTimes.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-blink-number-of-times
+
+   This example blinks an LED:
+     + blink LED 10 times and then off
+     + without using delay() function. This is a non-blocking example
+*/
+
+#include <ezLED.h> // ezLED library
+
+ezLED led(9);  // create a LED object that attach to pin 9
+
+void setup() {
+  Serial.begin(9600);
+  led.blinkNumberOfTimes(250, 750, 10);         // 250ms ON, 750ms OFF, repeat 10 times, blink immediately
+  //led.blinkNumberOfTimes(250, 750, 10, 1000); // 250ms ON, 750ms OFF, repeat 10 times, blink after 1 second
+}
+
+void loop() {
+  led.loop(); // MUST call the led.loop() function in loop()
+
+  if (led.getState() == LED_BLINKING)
+    Serial.println("BLINKING");
+  else if (led.getState() == LED_IDLE)
+    Serial.println("BLINK ENDED");
+
+  // To stop blinking immediately, call led.cancel() function
+}

examples/LEDFadeInFadeOut/LEDFadeInFadeOut.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-fade-in-fade-out
+
+   This example fade LED:
+     + fade in LED in 3 seconds
+     + fade out LED in 3 seconds
+     + without using delay() function. This is a non-blocking example
+*/
+
+#include <ezLED.h> // ezLED library
+
+ezLED led(9);  // create a LED object that attach to pin 9
+bool isFadedIn = false;
+
+void setup() {
+  Serial.begin(9600);
+}
+
+void loop() {
+  led.loop(); // MUST call the led1.loop() function in loop()
+
+  if (led.getState() == LED_IDLE) {
+    if (isFadedIn == false) {
+      Serial.println("FADING IN");
+      led.fade(0, 255, 3000);         // fade in from 0 to 255 in 3000ms, fade immediately
+      //led.fade(0, 255, 3000, 1000); // fade in from 0 to 255 in 3000ms, fade after 1 second
+      isFadedIn = true;
+    } else {
+      Serial.println("FADING OUT");
+      led.fade(255, 0, 3000);          // fade out from 255 to 0 in 3000ms, fade immediately
+      //led.fade(255, 0, 3000, 1000);  // fade out from 255 to 0 in 3000ms, fade after 1 second
+      isFadedIn = false;
+    }
+  }
+
+  // To stop fading immediately, call led.cancel() function
+}

examples/LEDOnOff/LEDOnOff.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-on-off
+
+   This example turn ON/OFF led according to state of button.
+*/
+
+#include <ezLED.h> // ezLED library
+
+#define BUTTON_PIN 7
+
+ezLED led(3);  // create a LED object that attach to pin 3
+
+void setup() {
+  Serial.begin(9600);
+  pinMode(BUTTON_PIN, INPUT_PULLUP);
+}
+
+void loop() {
+  led.loop(); // MUST call the led.loop() function in loop()
+
+  int buttonState = digitalRead(BUTTON_PIN);
+
+  if (buttonState == LOW) {
+    led.turnON();       // turn on immediately
+    //led.turnON(1000); // turn on after 1 second
+  } else {
+    led.turnOFF();       // turn off immediately
+    //led.turnOFF(1000); // turn off after 1 second
+  }
+
+  if (led.getOnOff() == LED_ON)
+    Serial.println("LED is ON");
+  else
+    Serial.println("LED is OFF");
+}

examples/LEDToggle/LEDToggle.ino

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+/*
+   Created by ArduinoGetStarted.com
+
+   This example code is in the public domain
+
+   Tutorial page: https://arduinogetstarted.com/library/led/example/arduino-led-toggle
+
+   This example turn ON/OFF led according to state of button.
+*/
+
+#include <ezButton.h> // ezButton library https://arduinogetstarted.com/tutorials/arduino-button-library
+#include <ezLED.h> // ezLED library
+
+ezButton button(7); // create a button object that attach to pin 7
+ezLED led(3);       // create a LED object that attach to pin 3
+
+void setup() {
+  Serial.begin(9600);
+  button.setDebounceTime(50); // set debounce time to 50ms
+}
+
+void loop() {
+  button.loop(); // MUST call the loop() function first
+  led.loop(); // MUST call the loop() function first
+
+  if (button.isPressed()) {
+    led.toggle(); // toggle immediately
+    //led.toggle(1000); // toggle after 1 second
+  }
+
+  if (led.getOnOff() == LED_ON)
+    Serial.println("LED is ON");
+  else
+    Serial.println("LED is OFF");
+}