Svenska ElektronikForumet

Kod: Markera allt

static float f_val = 123.6794;
static char outstr[15];

void setup() {
  dtostrf(f_val,7, 3, outstr);

  Serial.begin(9600);
  Serial.println(outstr);
}

void loop(){
}

Kod: Markera allt

float voltage = 123.6794;
static char outstr[15];

void setup() {
  dtostrf(voltage,7, 3, outstr);

  Serial.begin(9600);
  Serial.println(outstr);
}

void loop(){
}

Kod: Markera allt

long map(long x, long in_min, long in_max, long out_min, long out_max)
{
  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}