Arduino Uno R3: Serial Monitor
Learn how to code and show serial monitor output.
Materials Needed
- Arduino Uno R3 with cable.
- 1x Breadboard Solderless.
- 1x LED.
- 2x Jumper.
Step 1
Connect a jumper to board and GND
Step 2
Connect a jumper to board and pin number 2
Step 3
Connect LED to board between 2 jumpers while positive side connected to jumper pin number 2 and negative side to jumper GND
Simple Programming Example
Basic code to get Serial Monitor output:
//LearnIoT Academy
//Open Close LED with Serial Monitor
int led = 2; //LED pin numbers
void setup() {
Serial.begin(9600); //To setup Serial Monitor with 9600 baud output
pinMode(led, OUTPUT); // Initialize the LED pin as an output
}
void loop() {
Serial.println(led); //To print output at serial monitor everytime led goes on
digitalWrite(led, HIGH); // Turn the LED on
delay(1000); // Wait for a second
digitalWrite(led, LOW); // Turn the LED off
delay(1000); // Wait for a second
}
Summary
The Serial Monitor will show output of “2” everytime the LED was light up.