.: Arduino Tutorial #8 : MakerUno

Monday, 21 January 2019

Arduino Tutorial #8 : MakerUno - Simple LED

Arduino Tutorial #8:

MakerUno - Simple LED

In our earlier post, we have a look into the MakerUno. Today we shall look into programming the board. Basically, the concept is similar to Arduino Uno, the thing which is different is their built-in led, buzzer and push button. In our post today, we shall look into controlling the built-in led on the MakerUno board.
The onboard LEDs are connected to the digital pin starting from Pin 2 to Pin 13. To turn on these LEDs, it can be simply done by giving output high to each of the pins. For the first part, we shall make a simple led blinking program, followed by more complicated controlling methods.

Simple Led Blinking

/*
  Blink

  Turns an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO
  it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
  the correct LED pin independent of which board is used.
  If you want to know what pin the on-board LED is connected to on your Arduino
  model, check the Technical Specs of your board at:
  https://www.arduino.cc/en/Main/Products

  modified 8 May 2014
  by Scott Fitzgerald
  modified 2 Sep 2016
  by Arturo Guadalupi
  modified 8 Sep 2016
  by Colby Newman

  This example code is in the public domain.

  http://www.arduino.cc/en/Tutorial/Blink
*/

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

Knight Rider

/* Knight Rider By Electrosoft 
 * --------------
 *
 * @author: Hussien
 * @hardware: Maker Uno
 */

int pinArray[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13};
int count = 0;
int timer = 30;

void setup(){
  for (count=0;count<12;count++) {
    pinMode(pinArray[count], OUTPUT);
  }
}

void loop() {
  for (count=0;count<11;count++) {
   digitalWrite(pinArray[count], HIGH);
   delay(timer);
   digitalWrite(pinArray[count + 1], HIGH);
   delay(timer);
   digitalWrite(pinArray[count], LOW);
   delay(timer*2);
  }
  for (count=11;count>0;count--) {
   digitalWrite(pinArray[count], HIGH);
   delay(timer);
   digitalWrite(pinArray[count - 1], HIGH);
   delay(timer);
   digitalWrite(pinArray[count], LOW);
   delay(timer*2);
  }
}