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PWM with Arduino - step by step guide

video PWM with Arduino - step by step guide

Small step by step guide on how to use the PWM (Pulse Width Modulation) of the Arduino board. The video includes the components needed and an easy to follow connection guide, as well as a demo of the results obtained. The code is also included. Try it out yourself, enjoy! :D

4 comments

Jan 9, 2012. 7:09 PMalien200049655 says:

The code is a bit difficult to read in the video, could you please post it on your instructable?

Jan 10, 2012. 12:23 AMjgrecoarroyo (author) says:

Here is a link to the code: https://docs.google.com/document/d/1sVM4R4C8etX_34tTUtQkLbK3lBE_LEjYgY0WJMRuDi0/edit?pli=1

And here the code itself:

int motor = 9;
int potenciometer = 5;

void setup(){
pinMode(9,OUTPUT);
pinMode(5,INPUT);

Serial.begin(9600);
}

void loop(){
int value = analogRead(potenciometer);
//read input value: range between (0,1023)
int motor_speed = value/4;
//PWM can only ouput 255 different values

analogWrite(motor,motor_speed);

Serial.println(motor_speed);//for testing purposes
}