Assignment2-Blink

The LED light already true on now because it received the light from the atmosphere but the LED light turn off is when you lay your hand down close to photocell or touch it.

hw2

https://vimeo.com/105937518

Code

int sensorValue = 0; // value read from the pot

int outputValue = 0; // value output to the PWM (analog out)

void setup() {
// initialize serial communications at 9600 bps:
Serial.begin(9600);
}

void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
// map it to the range of the analog out:
outputValue = map(sensorValue, 0, 500, 0, 255);
// change the analog out value:
analogWrite(analogOutPin, outputValue);

// print the results to the serial monitor:
Serial.print(“sensor = ” );
Serial.print(sensorValue);
Serial.print(“\t output = “);
Serial.println(outputValue);

// wait 2 milliseconds before the next loop
// for the analog-to-digital converter to settle
// after the last reading:
delay(2);
}

 

cr. by Tom Igoe

 

 

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