Lab 2
Description
Use the r, g or b key to increase the light level with 20%
Components used
- 3 Light Emitting Diode (LED)
- 3 Resistors
- 1 Ping pong ball
Arduino code
char serInString[100]; // array that will hold the different bytes of the string. 100=100characters;
// -> you must state how long the array will be else it won't work properly
char colorCode;
int colorVal;
int colorValRed;
int colorValGreen;
int colorValBlue;
int redPin = 9; // Red LED, connected to digital pin 9
int greenPin = 10; // Green LED, connected to digital pin 10
int bluePin = 11; // Blue LED, connected to digital pin 11
void setup() {
pinMode(redPin, OUTPUT); // sets the pins as output
pinMode(greenPin, OUTPUT);
pinMode(bluePin, OUTPUT);
Serial.begin(9600);
analogWrite(redPin, 0);
analogWrite(greenPin, 0);
analogWrite(bluePin, 0);
colorValRed = 0;
colorValGreen = 0;
colorValBlue = 0;
Serial.println("enter color command (r, g or b) :");
}
void loop () {
// clear the string
memset(serInString, 0, 100);
//read the serial port and create a string out of what you read
readSerialString(serInString);
colorCode = serInString[0];
if( colorCode == 'r' || colorCode == 'g' || colorCode == 'b' ) {
//colorVal = atoi(serInString+1);
Serial.print("setting color ");
Serial.print(colorCode);
Serial.print(" to ");
serInString[0] = 0; // indicates we've used this string
if(colorCode == 'r'){
colorValRed=colorValRed+51;
if(colorValRed > 255){
colorValRed=0;
Serial.print(colorValRed);
analogWrite(redPin, colorValRed);
}else if(colorValRed < 256){
Serial.print(colorValRed);
analogWrite(redPin, colorValRed);
}
}else if(colorCode == 'g'){
colorValGreen=colorValGreen+51;
if(colorValGreen > 255){
colorValGreen=0;
Serial.print(colorValGreen);
analogWrite(greenPin, colorValGreen);
}else if(colorValGreen < 256){
Serial.print(colorValGreen);
analogWrite(greenPin, colorValGreen);
}
}else if(colorCode == 'b'){
colorValBlue=colorValBlue+51;
if(colorValBlue > 255){
colorValBlue=0;
Serial.print(colorValBlue);
analogWrite(bluePin, colorValBlue);
}else if(colorValBlue < 256){
Serial.print(colorValBlue);
analogWrite(bluePin, colorValBlue);
}
}
Serial.println();
}
delay(100); // wait a bit, for serial data
}
//read a string from the serial and store it in an array
//you must supply the array variable
void readSerialString (char *strArray) {
int i = 0;
if(!Serial.available()) {
return;
}
while (Serial.available()) {
strArray[i] = Serial.read();
i++;
}
}
Arduino code
Description: Set the lightsetting to one of the different mood settings of the color mood chart (http://www.color-chart.org/mood-ring-color-chart.php)
char serInString[100]; // array that will hold the different bytes of the string. 100=100characters;
// -> you must state how long the array will be else it won't work properly
char colorCode;
int colorVal;
int colorValRed;
int colorValGreen;
int colorValBlue;
int redPin = 9; // Red LED, connected to digital pin 9
int greenPin = 10; // Green LED, connected to digital pin 10
int bluePin = 11; // Blue LED, connected to digital pin 11
void setup() {
pinMode(redPin, OUTPUT); // sets the pins as output
pinMode(greenPin, OUTPUT);
pinMode(bluePin, OUTPUT);
Serial.begin(9600);
analogWrite(redPin, 0);
analogWrite(greenPin, 0);
analogWrite(bluePin, 0);
colorValRed = 0;
colorValGreen = 0;
colorValBlue = 0;
Serial.println("enter one of the following moods: Pleased, relaxed, excited, agressive, unhappy or subdued");
}
void loop () {
// clear the string
memset(serInString, 0, 100);
//read the serial port and create a string out of what you read
readSerialString(serInString);
colorCode = serInString[0];
if( colorCode == 'r' || colorCode == 'e' || colorCode == 'a' || colorCode == 'u' || colorCode == 's' || colorCode == 'p') {
if(serInString[0] == 'r' && serInString[1] == 'e' && serInString[2] == 'l' && serInString[3] == 'a' && serInString[4] == 'x' && serInString[5] == 'e' && serInString[6] == 'd'){
analogWrite(redPin, 64);
analogWrite(greenPin, 255);
analogWrite(bluePin, 255);
}else if(serInString[0] == 'e' && serInString[1] == 'x' && serInString[2] == 'c' && serInString[3] == 'i' && serInString[4] == 't' && serInString[5] == 'e' && serInString[6] == 'd'){
analogWrite(redPin, 253);
analogWrite(greenPin, 253);
analogWrite(bluePin, 52);
}else if(serInString[0] == 'a' && serInString[1] == 'g' && serInString[2] == 'r' && serInString[3] == 'e' && serInString[4] == 's' && serInString[5] == 's' && serInString[6] == 'i' && serInString[7] == 'v' && serInString[8] == 'e'){
analogWrite(redPin, 253);
analogWrite(greenPin, 47);
analogWrite(bluePin, 47);
}
else if(serInString[0] == 'u' && serInString[1] == 'n' && serInString[2] == 'h' && serInString[3] == 'a' && serInString[4] == 'p' && serInString[5] == 'p' && serInString[6] == 'y'){
analogWrite(redPin, 255);
analogWrite(greenPin, 50);
analogWrite(bluePin, 253);
}else if(serInString[0] == 'p' && serInString[1] == 'l' && serInString[2] == 'e' && serInString[3] == 'a' && serInString[4] == 's' && serInString[5] == 'e' && serInString[6] == 'd'){
analogWrite(redPin, 238);
analogWrite(greenPin, 213);
analogWrite(bluePin, 252);
}else if(serInString[0] == 's' && serInString[1] == 'u' && serInString[2] == 'b' && serInString[3] == 'd' && serInString[4] == 'u' && serInString[5] == 'e' && serInString[6] == 'd'){
analogWrite(redPin, 48);
analogWrite(greenPin, 34);
analogWrite(bluePin, 251);
}
Serial.println();
}
delay(100); // wait a bit, for serial data
}
//read a string from the serial and store it in an array
//you must supply the array variable
void readSerialString (char *strArray) {
int i = 0;
if(!Serial.available()) {
return;
}
while (Serial.available()) {
strArray[i] = Serial.read();
i++;
}
}
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