techzeero

/*
   Getting Start With Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/getting-start-with-arduino/ 
*/

void setup() 
{
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

techzeero

/* 
   Controlling Multiple LEDs With an Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/multiple-leds-blinking-using-arduino/
*/

void setup()
{
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);

techzeero

/* 
   Controlling Multiple LEDs With an Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/multiple-leds-blinking-using-arduino/
*/

void setup()
{
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);

techzeero

/* 
   How to use an RGB LED with Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/how-to-use-an-rgb-led-with-arduino/
*/

void setup()
{
  pinMode(3, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);

techzeero

/*
   Display Potentiometer Readings on LCD Display
   For more details, visit: https://techzeero.com/arduino-tutorials/display-potentiometer-readings-on-lcd-display/

 The circuit:
 * LCD RS pin to digital pin 12
 * LCD Enable pin to digital pin 11
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3

techzeero

/* 
   Adjusting the Color of an RGB LED
   For more details, visit: https://techzeero.com/arduino-tutorials/adjusting-the-color-of-an-rgb-led/
*/

const int redPin = 3; // choose the pin for each of the LEDs
const int greenPin = 5;
const int bluePin = 6;
const boolean invert = false; // set true if common anode, false if common cathode
int color = 0; // a value from 0 to 255 representing the hue

techzeero

/*
   How to use Potentiometer with Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/how-to-use-potentiometer-with-arduino/

  AnalogReadSerial
  Reads an analog input (potentiometer) on pin 0,
  prints the result to the serial monitor.

  OPEN THE SERIAL MONITOR TO VIEW THE OUTPUT FROM THE POTENTIOMETER >>

techzeero

/*
   LED Blinking Control by Potentiometer
   For more details, visit: https://techzeero.com/arduino-tutorials/led-blinking-control-by-potentiometer/

   Blink an LED at a rate set by the position of a potentiometer
*/
const int potPin = 0; // select the input pin for the potentiometer
const int ledPin = 5; // select the pin for the LED
int val = 0; // variable to store the value coming from the sensor
void setup()

techzeero

/*
   How to use an LCD Display with Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/how-to-use-an-lcd-display-with-arduino/ 

 The circuit:
 * LCD RS pin to digital pin 12
 * LCD Enable pin to digital pin 11
 * LCD D4 pin to digital pin 5
 * LCD D5 pin to digital pin 4
 * LCD D6 pin to digital pin 3

techzeero

/* 
   Ultrasonic Sensor with Arduino
   For more details, visit: https://techzeero.com/arduino-tutorials/ultrasonic-sensor-with-arduino/
*/

int trigPin = 9; // Trigger Pin of Ultrasonic Sensor
int echoPin = 8; // Echo Pin of Ultrasonic Sensor

void setup()
{