if (currentMillis - previousMillis >= interval) previousMillis = currentMillis; ledState = !ledState; digitalWrite(ledPin, ledState);
void setup() Serial.begin(9600); // Match baud rate in Serial Monitor arduino uno programacion ejemplos
Components: LED, 220Ω resistor. Connect to pin 9 (PWM-capable). Debugging and Serial Communication The Serial Monitor (Tools
void loop() unsigned long currentMillis = millis(); if (currentMillis - previousMillis >
void loop() digitalWrite(13, HIGH); // Turn LED on delay(1000); // Wait 1 second digitalWrite(13, LOW); // Turn LED off delay(1000); // Wait 1 second
| Library | Purpose | |---------|---------| | LiquidCrystal.h | Control LCD displays (16x2, 20x4) | | Servo.h | Control up to 12 servos | | Stepper.h | Control stepper motors | | DHT.h | Read temperature/humidity sensors | | SPI.h / Wire.h | SPI and I2C communication | 6. Debugging and Serial Communication The Serial Monitor (Tools → Serial Monitor) is essential for debugging.
3.1 Pin Mode and Digital I/O Pins must be configured as INPUT or OUTPUT using pinMode() .