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Typos PWN PWM, etc

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edit approved Jan 30, 2015 at 15:35

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I'm just starting off with using the ardinoArduino and was learning about PWN PWM
(http://arduino.cc/en/Tutorial/PWM). Below
Below is what my circuit looks like.

enter image description here

Below is the very simple code.

const int pinNine = 9;    // LED connected to digital pin 9

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600); 
  // set the digital pins as outputs
  pinMode(pinNine,OUTPUT);
}

void loop() {      
  analogWrite(pinNine, 0); 
}

I was expecting my LED to not be lighted as its a 0% duty cycle. I even change the pinNine outputValue to (64, 127, etc) but for some reason the LED is always lighted. Any ideas?

I'm just starting off with using the ardino and was learning about PWN (http://arduino.cc/en/Tutorial/PWM). Below is what my circuit looks like.

enter image description here

Below is the very simple code.

const int pinNine = 9;    // LED connected to digital pin 9

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600); 
  // set the digital pins as outputs
  pinMode(pinNine,OUTPUT);
}

void loop() {      
  analogWrite(pinNine, 0); 
}

I was expecting my LED to not be lighted as its a 0% duty cycle. I even change the pinNine outputValue to (64, 127, etc) but for some reason the LED is always lighted. Any ideas?

I'm just starting off with using the Arduino and was learning about PWM
(http://arduino.cc/en/Tutorial/PWM).
Below is what my circuit looks like.

enter image description here

Below is the very simple code.

const int pinNine = 9;    // LED connected to digital pin 9

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600); 
  // set the digital pins as outputs
  pinMode(pinNine,OUTPUT);
}

void loop() {      
  analogWrite(pinNine, 0); 
}

I was expecting my LED to not be lighted as its a 0% duty cycle. I even change the pinNine outputValue to (64, 127, etc) but for some reason the LED is always lighted. Any ideas?

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asked Jan 30, 2015 at 7:52

noi.m

Issue with PWM output pin

I'm just starting off with using the ardino and was learning about PWN (http://arduino.cc/en/Tutorial/PWM). Below is what my circuit looks like.

enter image description here

Below is the very simple code.

const int pinNine = 9;    // LED connected to digital pin 9

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600); 
  // set the digital pins as outputs
  pinMode(pinNine,OUTPUT);
}

void loop() {      
  analogWrite(pinNine, 0); 
}

I was expecting my LED to not be lighted as its a 0% duty cycle. I even change the pinNine outputValue to (64, 127, etc) but for some reason the LED is always lighted. Any ideas?

pwm analogwrite