int Led = 13 ;     // define LED Interfaceint buttonpin = 3; // define the obstacle avoidance sensor interfaceint val ;          // define numeric variables valvoid setup (){  pinMode (Led, OUTPUT) ;        // define LED as output interface  pinMode (buttonpin, INPUT) ;   // define the obstacle avoidance sensor output interface}void loop (){  val = digitalRead (buttonpin) ;// digital interface will be assigned a value of 3 to read val  if (val == HIGH)               // When the obstacle avoidance sensor detects a signal, LED flashes  {    digitalWrite (Led, HIGH);  }  else  {    digitalWrite (Led, LOW);  }}

int sensorPin = A5;   // select the input pinint ledPin = 13;      // select the pin for the LEDint sensorValue = 0;  // variable to store the value coming from the sensorvoid setup () {  pinMode (ledPin, OUTPUT);  Serial.begin (9600);}void loop () {  sensorValue = analogRead (sensorPin);  digitalWrite (ledPin, HIGH);  delay (sensorValue);  digitalWrite (ledPin, LOW);  delay (sensorValue);  Serial.println (sensorValue, DEC);}

/*BlinkTurns on an LED on for two second, then off for two second, repeatedly.This example code is in the public domain.*/ void setup () {  // Initialize the digital pin as an output.  // Pin 13 has an LED connected on most Arduino boards:  pinMode (13, OUTPUT);}void loop () {  digitalWrite (13, HIGH);  // set the LED on  delay (2000);             // wait for a second  digitalWrite (13, LOW);   // set the LED off  delay (2000);             // wait for a second}


https://tkkrlab.nl/wiki/Arduino_KY-034_Automatic_flashing_colorful_LED_module
http://learn.linksprite.com/arduino/sensors-kit-for-arduino/ky034-7-colors-led-blinking-module/
http://arduinosensors.nl/index.php?route=product/product&product_id=51

Codebeispiel Arduino

Diese Codebeispiel zeigt auf, wie eine LED mittels eines definierbaren Ausgangspins abwechselnd für  4 Sekunden ein- und danach 2 Sekunden ausgeschaltet werden kann.

LedTestArduino_4On_2Off.zip

/* KY-035 Hall analog sensor*/ int sensorPin = A5;    // select the input pinint ledPin = 13;       // select the pin for the LEDint sensorValue = 0;   // variable to store the value coming from the sensor void setup () {  pinMode (ledPin, OUTPUT);  Serial.begin (9600);} void loop () {  sensorValue = analogRead (sensorPin);  digitalWrite (ledPin, HIGH);  delay (sensorValue);  digitalWrite (ledPin, LOW);  delay (sensorValue);  Serial.println (sensorValue, DEC);}

int Led = 13 ;      // define LED Interfaceint buttonpin = 3;  // define Metal Touch Sensor Interfaceint val ;           // define numeric variables valvoid setup (){  pinMode (Led, OUTPUT) ;      // define LED as output interface  pinMode (buttonpin, INPUT) ; // define metal touch sensor output interface}void loop (){  val = digitalRead (buttonpin) ; // digital interface will be assigned a value of 3 to read val  if (val == HIGH)                // When the metal touch sensor detects a signal, LED flashes  {    digitalWrite (Led, HIGH);  }  else  {    digitalWrite (Led, LOW);  }}

int Led = 13 ;      // define LED Interfaceint buttonpin = 3;  // define D0 Sensor Interfaceint val = 0;        // define numeric variables val void setup (){  pinMode (Led, OUTPUT) ;      // define LED as output interface  pinMode (buttonpin, INPUT) ; // output interface D0 is defined sensor} void loop (){  val = digitalRead(buttonpin);// digital interface will be assigned a value of pin 3 to read val  if (val == HIGH)             // When the sound detection module detects a signal, LED flashes  {    digitalWrite (Led, HIGH);  }  else  {    digitalWrite (Led, LOW);  }}

int sensorPin = A0;  // select the input pin for the potentiometerint ledPin = 13;     // select the pin for the LEDint sensorValue = 0; // variable to store the value coming from the sensor void setup () {  pinMode (ledPin, OUTPUT);  Serial.begin (9600);} void loop () {  sensorValue = analogRead (sensorPin);  digitalWrite (ledPin, HIGH);  delay (sensorValue);  digitalWrite (ledPin, LOW);  delay (sensorValue);  Serial.println (sensorValue, DEC);}

                      // Pulse Monitor Test Scriptint sensorPin = 0;double alpha = 0.75;int period = 100;double change = 0.0;double minval = 0.0;void setup (){  Serial.begin (9600);}void loop (){    static double oldValue = 0;    static double oldChange = 0;     int rawValue = analogRead (sensorPin);    double value = alpha * oldValue + (1 - alpha) * rawValue;     Serial.print (rawValue);    Serial.print (",");    Serial.println (value);    oldValue = value;     delay (period);}

int redPin = 2;int yellowPin = 3;int greenPin = 4;int aPin = 6;int bPin = 7;int buttonPin = 5;int state = 0;int longPeriod = 5000; // Time at green or redint shortPeriod = 700; // Time period when changingint targetCount = shortPeriod;int count = 0;void setup (){  pinMode (aPin, INPUT);  pinMode (bPin, INPUT);  pinMode (buttonPin, INPUT);  pinMode (redPin, OUTPUT);  pinMode (yellowPin, OUTPUT);  pinMode (greenPin, OUTPUT);}void loop (){  count++;  if (digitalRead (buttonPin))  {    setLights (HIGH, HIGH, HIGH);  }  else  {    int change = getEncoderTurn ();    int newPeriod = longPeriod + (change * 1000);    if (newPeriod  >= 1000 && newPeriod <= 10000)    {      longPeriod = newPeriod;    }    if (count> targetCount)    {      setState ();      count = 0;    }  }  delay (1);}int getEncoderTurn (){  // Return -1, 0, or +1  static int oldA = LOW;  static int oldB = LOW;  int result = 0;  int newA = digitalRead (aPin);  int newB = digitalRead (bPin);  if (newA != oldA || newB != oldB)  {    //Something has changed    if (oldA == LOW && newA == HIGH)    {      result = - (oldB * 2 - 1);    }  }  oldA = newA;  oldB = newB;  return result;}int setState (){  if (state == 0)  {    setLights (HIGH, LOW, LOW);    targetCount = longPeriod;    state = 1;  }  else if (state == 1)  {    setLights (HIGH, HIGH, LOW);    targetCount = shortPeriod;    state = 2;  }  else if (state == 2)  {    setLights (LOW, LOW, HIGH);    targetCount = longPeriod;    state = 3;  }  else if (state == 3)  {    setLights (LOW, HIGH, LOW);    targetCount = shortPeriod;    state = 0;  }}void setLights (int red, int yellow, int green){  digitalWrite (redPin, red);  digitalWrite (yellowPin, yellow);  digitalWrite (greenPin, green);}