Exercise 1
int buttonPin = 9; //pin assignment for button
int ledPin = 8; //pin assignment for led
void setup(){
Serial.begin(9600); // initialize serial communication at 9600
pinMode(ledPin, OUTPUT); // Use pin 8 for digital output
pinMode(buttonPin, INPUT_PULLUP); // Use pin 9 for digital input
}
void loop(){
boolean state; // state either 1 or 0
state = digitalRead(buttonPin); // read state of pin 9
digitalWrite(ledPin , state); // set state of pin 8 (LED)
Serial.println(state); // print out the state
delay(100); // wait for a 100 millisecond
}
Exercise 2a
// Convert the analog reading which goes from (0 - 1023) to a voltage (0 - 5V)
void setup()
{Serial.begin(9600); //initialize serial communication at 9600 bits per second:
}
void loop()
{
int sensorValue = analogRead(A0); // read the input on analog pin 0:
float voltage = sensorValue * (5.0 / 1023.0);
Serial.print(“analog=“);
Serial.print(sensorValue); // print out the analog value you read:
Serial.print(“ voltage=“);
Serial.println(voltage); // print out the corresponding voltage
}
Exercise 2b
int ledPin = 9;
int potPin = A0;
void setup()
{
pinMode(ledPin, OUTPUT); // Use pin 9 for analog output
pinMode(potPin, INPUT); // Use pin 0 for analog input
Serial.begin(9600); // initialize serial communication at 9600
}
void loop()
{
int value = analogRead(potPin ); // read analog of pin A0
digitalWrite(ledPin, HIGH); // turn on led
delay(value); // turn on time delay
digitalWrite(ledPin, LOW); // turn off led
delay(value); // turn off time delay
Serial.println(value); // print out the delay time in milliseconds
}
Exercise 2c
int ledPin = 9;
int potPin = A0;
void setup()
{
pinMode(ledPin, OUTPUT); // Use pin 9 for analog output
pinMode(potPin, INPUT); // Use pin 0 for analog input
Serial.begin(9600); // initialize serial communication at 9600
// Use pin 9 as PWM analog output, PWM pins require no pin assign
}
void loop()
{
int value = analogRead(potPin); // read analog of pin A0
int duty = value/4; // convert the value to percentage
analogWrite(ledPin, duty); // output PWM signal at pin 9
Serial.print(value); // print out the value
Serial.print(“\t”); // create spacebar
Serial.println(duty); // print out the duty
delay(100); // wait for a 100 millisecond
}
Exercise 2d
int photocellPin = 0; // the cell and 10K pulldown are connected to A0
int photocellReading; //the analog reading from the analog resistor divider
void setup(void) {
Serial.begin(9600);
}
void loop(void) {
photocellReading = analogRead(photocellPin);
Serial.print("Analog reading = ");
Serial.print(photocellReading); // the raw analog reading
if (photocellReading < 10) {
Serial.println(" - Dark");
} else if (photocellReading < 200) {
Serial.println(" - Dim");
} else if (photocellReading < 500) {
Serial.println(" - Light");
} else if (photocellReading < 800) {
Serial.println(" - Bright");
} else {
Serial.println(" - Very bright");
}
delay(1000);
}
Exercise 2e
int photocellPin = 0; // the cell and 10K pulldown are connected to A0
int photocellReading; //the analog reading from the analog resistor divider
float voltage; //the value
int LEDpin = 11;
int LEDbrightness;
void setup(void)
{
Serial.begin(9600);
}
void loop(void)
{
photocellReading = analogRead(photocellPin);
Serial.print("Analog reading = ");
Serial.println(photocellReading); // the raw analog reading
voltage= (photocellReading*5)/1023;
Serial.print("voltage = ");
Serial.println(voltage); // the raw analog reading
//photocellReading = 1023 - photocellReading;
LEDbrightness = map(voltage, 4, 1, 0, 255);
analogWrite(LEDpin, LEDbrightness);
delay(100);
}
Exercise 3a
void setup()
{
Serial.begin(9600); // initialize serial communication at 9600 bits per second
Serial.println(“Text Display"); // print out the value you read:
delay(100);
}
void loop()
{
Serial.print(“My Name is:"); // print out the value you read:
delay(1000); // delay in between reads for stability
Serial.print(“\t"); // tab the print
Serial.println(“Put Your Name Here"); // print out the value you read:
delay(1000); // delay in between reads for stability
}
Exercise 3b
char incomingByte=0;
void setup()
{
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
Serial.println("Convert ASCII Char to others");
delay(100);
}
void loop() {
if (Serial.available() > 0)
{
incomingByte = Serial.read(); // read the latest byte:
Serial.print("ASCII Char:");
Serial.println(incomingByte); //print out the byte in Ascii Character
Serial.print("HEX=");
Serial.println(incomingByte,HEX); //print out the byte in HEX
Serial.print("Decimal=");
Serial.println(incomingByte,DEC); //print out the byte in decimal
Serial.print("Binary=");
Serial.println(incomingByte,BIN); //print out the byte in binary
Serial.print("\n"); //New line
}
delay(200);
}
Exercise 3c
int c;
int duty = 0;
int ledPin = 9;
void setup()
{
Serial.begin(9600);
Serial.setTimeout(10); // Serial.begin data read faster
}
void loop()
{
if (Serial.available())
{
c = Serial.parseInt();
}
Serial.print(c);
duty = map(c, 0, 9, 0, 255); //mapping number 0 - 9 to 0-255
analogWrite(ledPin, duty); // output PWM signal at pin 9
Serial.print("\t"); // create spacebar
Serial.println(duty); // print out the duty
delay(100); // wait for 100 millisecond
}
Tugasan 1
int GREEN = 2;
int YELLOW = 3;
int RED = 4;
int DELAY_GREEN = 5000;
int DELAY_YELLOW = 2000;
int DELAY_RED = 5000;
void setup() {
pinMode(GREEN, OUTPUT);
pinMode(YELLOW, OUTPUT);
pinMode(RED, OUTPUT); }
void loop()
{
green_light();
delay(DELAY_GREEN);
yellow_light();
delay(DELAY_YELLOW);
red_light();
delay(DELAY_RED); }
void green_light() {
digitalWrite(GREEN, HIGH);
digitalWrite(YELLOW, LOW);
digitalWrite(RED, LOW); }
void yellow_light() {
digitalWrite(GREEN, LOW);
digitalWrite(YELLOW, HIGH);
digitalWrite(RED, LOW); }
void red_light() {
digitalWrite(GREEN, LOW);
digitalWrite(YELLOW, LOW);
digitalWrite(RED, HIGH);
}
Online Tutorial 1
Online Tutorial 2
