| 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.
void loop() brightness >= 255) fadeAmount = -fadeAmount; // Reverse direction arduino uno programacion ejemplos
3.1 Pin Mode and Digital I/O Pins must be configured as INPUT or OUTPUT using pinMode() . | Library | Purpose | |---------|---------| | LiquidCrystal
void setup() pinMode(13, OUTPUT); // Set pin 13 as output void setup() pinMode(13, OUTPUT); // Set pin 13
for (pos = 180; pos >= 0; pos--) myservo.write(pos); delay(15);
Components: 10kΩ potentiometer. Connect middle pin to A0, outer pins to 5V and GND.
