18. November 2010

Mit Hilfe der LCD Anzeige erforschten wir den Gebrauch einer asynchronen, seriellen Schnittstelle.

#include 

#define txPin 12

SoftwareSerial LCD = SoftwareSerial(0, txPin);
// since the LCD does not send data back to the Arduino, we should only define the txPin

void setup(){
 pinMode(txPin, OUTPUT);
 LCD.begin(9600);
 Serial.begin(9600);
}

void loop(){
 clearLCD();

 //Rouven();
 Stefan();

 /* for(int i = 0; i <= 32; i++){
 clearLCD();
 goTo(i);
 LCD.print(1, BYTE);
 delay(150);
 }*/

}

void asciiScroller(){
 clearLCD();

 for(int i = 1; i < 128; i++){
 LCD.print(i, BYTE);
 delay(200);
 Serial.println(i);
 }
}

void srollingLetter(){
 clearLCD();

 for(int i = 0; i <= 32; i++){
 clearLCD();
 goTo(i);
 LCD.print(1, BYTE);
 delay(300);
 }
}

void Rouven(){
 clearLCD();
 selectLineOne();
 LCD.print("Rouven");
 selectLineTwo();
 LCD.print("Buehlmann");
 delay(500);
}

void Stefan(){
 clearLCD();
 selectLineOne();
 LCD.print("Stefan");
 selectLineTwo();
 LCD.print("Wanner");
 delay(500);
}

void clearLCD(){
 LCD.print(0xFE, BYTE);   //command flag
 LCD.print(0x01, BYTE);   //clear command.
}

void selectLineOne(){  //puts the cursor at line 0 char 0.
 LCD.print(0xFE, BYTE);   //command flag
 LCD.print(128, BYTE);    //position
}

void selectLineTwo(){  //puts the cursor at line 2 char 0.
 LCD.print(0xFE, BYTE);   //command flag
 LCD.print(192, BYTE);    //position
}

void toTheRight(){
 LCD.print(0xFE, BYTE);
 LCD.print(0x14, BYTE);
}

void goTo(int position) {                                 //position = line 1: 0-19, line 2: 20-39, etc, 79+ defaults back to 0
if (position<17){ LCD.print(0xFE, BYTE);               //command flag
 LCD.print((position+128), BYTE);         //position
}else if (position<33){LCD.print(0xFE, BYTE);          //command flag
 LCD.print((position+128+64-17), BYTE);    //position

} else { goTo(0); }
}
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