Wiring
Check pinout, power supply, common GND and voltage levels before connecting the module.
Full code
const int thermistorPin = A0;
void setup() {
Serial.begin(9600);
}
void loop() {
int raw = analogRead(thermistorPin);
float voltage = raw * (5.0 / 1023.0);
Serial.println(voltage);
delay(500);
}How it works
This lesson matches the page title and gives a clean starting point for this exact example.
Common mistakes
Check board selection, wiring, libraries, power supply and serial monitor baud rate.