File content as of revision 2:e73e456e0542:

#include "mbed.h"
#include "LM75B.h"
DigitalOut Led1(LED1);
DigitalOut Led2(LED2);
DigitalOut Led3(LED3);
DigitalOut Led4(LED4);
Serial fs(USBTX, USBRX);
LM75B sensor(p28, p27) ;
AnalogIn LDR(p16);
AnalogIn poti(p15);

void TempMax();

int main()
{
    char ch;
    
    if(sensor.open() != 0) {
        fs.printf("Geraet gefunden");
        while(1) {
        Led3 = Led4 = 1;
        wait(1.5);
        Led3 = Led4 = 0;
        TempMax();
        wait(2);
        }
    }
    return 0;
}
void TempMax()
{
    if(sensor > 29.0
    ) {
        Led1 = Led2 = 1;
        fs.printf("Temp. %0.3f", (float)sensor);
    } else {
        Led1 = Led2 = 0;
        fs.printf("Temp. %0.3f", (float)sensor);

    }
}







/*fs.printf("LED schalten mittels UART\r\n");
fs.printf("FSST 3BHEL\n");
fs.printf("Druecken Sie eine Taste 1, 2, 3 oder 4 (LED)\r\n");
while(1) {
    ch=fs.getc();
    switch (ch) {
        case '1':
        Led1=!Led1;
        break;
        case '2':
        Led2=!Led2;
        break;
        case '3':
        Led3=!Led3;
        break;
        case '4':
        Led4=!Led4;
        break;
        default:
        fs.printf("Druecken Sie eine Taste 1, 2, 3 oder 4 (LED)\r\n");
        break;



            if (sensor.open()) {
    fs.printf("Device detected!\r\n");
    while(1) {
    Led4=1;
    wait(0.5);
    Led4=0;
    wait(0.5);
    fs.printf("Temperatur =%.3f\n\r",(float)sensor);
    wait(0.5);
}
} else {
    fs.printf("Device not found!\r\n");
        }
 }*/