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[icon] Arduino | mortenbs.com
Last updated 2011.

An Arduino board is used to control electronics from a PC.
With simple programming the Arduino can be programmed and unhooked from the computer, while doing it's task.
[Arduino Duemilanove]

With an Arduino it's easy to turn things on/off, reading sensors, controlling motors and more.
[pil] Digital pins to turn things on/off, or to read an on/off state
[pil] PWM pins to use for analog purpose, and to communicate with PWM equipment.
[pil] Analog inputs to read potentiometers or sensors etc.

Digital pins
Digital pins is managed by boolean data type (true/false) or (HIGH/LOW).
A digital output pin has 5 volt DC when it's true, and 0 volt DC when it's false.
A digital input pin is given 5 volt DC to be true, and given 0 volt DC to be false.

PWM pins
PWM pins is managed by integer data type (timing).
A PWM pin is used for remote control, motor control, servo motors and more.

Analog input pins
Analog inputs is read into a byte data type.
An analog input is used for potentiometers, sensors and more.

PWM and digital pins is initialized to be an input or an output.

Potentiometer analog input, LEDS digital output
Variable potentiometer input changes tempo of digital outputs

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Potentiometer analog input, LEDS digital output | Arduino IDE Sketch File (.pde)
//Potentiometer analog input, LEDS digital output 

void setup(){                
 for(byte b=0;b<=12;b++){pinMode(b,OUTPUT);}   
}

int curPin;
int sensorValue;
int pauseMs;

void loop(){
 sensorValue=analogRead(1); 
 pauseMs=4+(sensorValue/10);
 curPin=curPin+1;if(curPin>13){curPin=0;};
 digitalWrite(curPin,HIGH);delay(pauseMs*2);
 digitalWrite(curPin,LOW);//delay(pauseMs);
}
Arduino source HTML generated by Arduino PDE to HTM | Mini converter, mortenbs.com

Connecting a potentiometer to the Arduino
[Potentiometer]
The outer pins is connected to ground and 5v plus.
The middle pin is the analog out.


Various scripts for Arduino


Serial monitor, Analog-inputs | Arduino IDE Sketch File (.pde)
//SERIAL MONITOR ALL SIX ANALOG INPUTS

void setup(){                
 Serial.begin(9600);
}

void loop(){
 Serial.print("0=");Serial.print(analogRead(0));Serial.print(", ");
 Serial.print("1=");Serial.print(analogRead(1));Serial.print(", ");
 Serial.print("2=");Serial.print(analogRead(2));Serial.print(", ");
 Serial.print("3=");Serial.print(analogRead(3));Serial.print(", ");
 Serial.print("4=");Serial.print(analogRead(4));Serial.print(", ");
 Serial.print("5=");Serial.print(analogRead(5));Serial.println(".");
 delay(100);
}
Arduino source HTML generated by Arduino PDE to HTM | Mini converter, mortenbs.com

Serial monitor, PWM-inputs | Arduino IDE Sketch File (.pde)
//SERIAL MONITOR PWM INPUTS

void setup(){                
 Serial.begin(9600);
 pinMode(3,INPUT);pinMode(5,INPUT);pinMode(6,INPUT);
 pinMode(9,INPUT);pinMode(10,INPUT);pinMode(11,INPUT);
}

int readPwm(byte aPin){
 return (pulseIn(aPin,HIGH)/10)-100;
}

void loop(){
 Serial.print("3=");Serial.print(readPwm(3));Serial.print(" ");
 Serial.print("5=");Serial.print(readPwm(5));Serial.print(" ");
 Serial.print("6=");Serial.print(readPwm(6));Serial.print(" ");
 Serial.print("9=");Serial.print(readPwm(9));Serial.print(" ");
 Serial.print("10=");Serial.print(readPwm(10));Serial.print(" ");
 Serial.print("11=");Serial.print(readPwm(11));Serial.println(".");
 delay(10);
}
Arduino source HTML generated by Arduino PDE to HTM | Mini converter, mortenbs.com

Test PWM-outputs | Arduino IDE Sketch File (.pde)
//TEST PWM OUTOUTS

void setup(){                
 pinMode(3,OUTPUT);pinMode(5,OUTPUT);pinMode(6,OUTPUT);
 pinMode(9,OUTPUT);pinMode(10,OUTPUT);pinMode(11,OUTPUT);
}

byte n=0;

void loop(){
 n=n+1;if(n>255){n=0;}
 analogWrite(3,n);analogWrite(5,n);analogWrite(6,n);
 analogWrite(9,n);analogWrite(10,n);analogWrite(11,n);
 delay(10);
}
Arduino source HTML generated by Arduino PDE to HTM | Mini converter, mortenbs.com

Test Servo-outputs | Arduino IDE Sketch File (.pde)
//TEST SERVO OUTPUTS

#include <Servo.h> 
 
Servo servo5;//servo on PIN 5
Servo servo6;//servo on PIN 6
byte aValue=0;
 
void setup(){ 
 servo5.attach(5);
 servo6.attach(6);
} 
 
void loop(){ 
 aValue=aValue+1;if(aValue>180){aValue=0;}  
 servo5.write(aValue);
 servo6.write(aValue);
 delay(30);
}
Arduino source HTML generated by Arduino PDE to HTM | Mini converter, mortenbs.com



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