tolomero

int i;
int sign;
long value;
float result;
float results = [0,0,0];
int clockpin = [4,6,8];
int datapin = [5,7,9];
unsigned long tempmicros;
int device;

void setup() {

  Serial.begin(9600);

  for(i=0;i<sizeoff(datapin);i++) {
    pinMode(clockpin[i], INPUT);
    pinMode(datapin[i], INPUT);
  }
}


void loop () {

  for(i=0;i<sizeoff(datapin);i++) {
    while (digitalRead(clockpin[i])==HIGH) {} //if clock is LOW wait until it turns to HIGH
    tempmicros=micros();
    while (digitalRead(clockpin[i])==LOW) {} //wait for the end of the HIGH pulse
    if ((micros()-tempmicros)>500) { //if the HIGH pulse was longer than 500 micros we are at the start of a new bit sequence
      decode(i); //decode the bit sequence
    }
  }
}

void decode(int device) {

  sign=1;
  value=0;
  for (i=0;i<23;i++) {
    while (digitalRead(clockpin[device])==HIGH) { } //wait until clock returns to HIGH- the first bit is not needed
    while (digitalRead(clockpin[device])==LOW) {} //wait until clock returns to LOW
    if (digitalRead(datapin[device])==LOW) {
      if (i<20) {
        value|= 1<<i;
      }
      if (i==20) {
        sign=-1;
      }
    }
  }
  result=(value*sign)/100.00;
  results[device] = result;
  Serial.println(result,2); //print result with 2 decimals
  delay(1000);
}