Arduino LM75

temperatur.pde

// based on http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1290115931
#include <Wire.h>
int t,l;
void setup() {
  Wire.begin();
  Serial.begin(9600);
}

void loop() {
  Wire.send(0x00);
  Wire.requestFrom(B1001111, 2);
  while(Wire.available()) {
    int8_t msb = Wire.receive();
    int8_t lsb = Wire.receive();
    // strip one bit of the lsb
    lsb = (lsb & 0x80 ) >> 7; // now lsb = 0 or 1
    // add to to form an float
    float f = msb + 0.5 * lsb;
    Serial.println(f,1);
  }
  delay(1000);
}