Arduino & IoT Academy · Lesson

Watch Sensor Values Live

Stream readings to debug your circuits.

See Your Sensor Think

Serial is not just for hello messages. Its real power is streaming live sensor readings so you can watch your circuit react in real time. 📈

The pattern is simple: read a value into a variable, then print that variable. Repeat it every loop to get a live feed.

int value = analogRead(A0);
Serial.println(value);