#define FLEX_PIN A0 void setup(){ Serial.begin(9600); } void loop(){ int value = analogRead(FLEX_PIN); float v = value * 5.0 / 1023.0; float r = 56000 * (5.0 / v - 1); float angle = map(r, 40000, 99000, 0, 90); Serial.println("Gradi: " + String(angle) + "°"); delay(500); }