++
/*
 * Arduino Step by Step Course by Robojax
 * Lesson 98  https://robojax.com/course1/?vid=lecture98
 * Project 6 of 10
 * See Saw Project which
 * This code will turn ON Green LED for 1 second then turns it OFF and turns ON Red LED for 1 second.
 * It turns it OFF and repeats turning Green LED.
 * 
 
* Watch full details and demonstration: https://youtu.be/OSwleCBlkuI
 * 
 * Start a full Arduino Step By Step course:  https://youtu.be/-6qSrDUA5a8
 * 
 ****** 10 Projects explained in this video
 * 1-LED ON OFF 
 * 2-LED ON/OFF with push button
 * 3-LED ON/OFF toggle with push button
 * 4-Fading light of LED
 * 5-Fading light of LED using push button
 * 6-See Saw with LED
 * 7-Walking Light
 * 8-Walking light with push button
 * 9-LED voltage level meter
 * 10- Arduino Traffic Light
 * 
 * 
 * What parts we need:
 * -Of course Arduino board (UNO, Nano, Mega or any)
 * -Push button switch 
 * -LED either 5mm or 3mm
 * -200ohm to 1000 ohm resistor for LED
 * -Some dupont wires to connect
 * -If you don't want to solder, then use breadboard
This video is part of Arduino Step by Step Course which starts here: https://youtu.be/-6qSrDUA5a8

  * written by Ahmad Shamshiri on Jan 30, 2022
 * in Ajax, Ontario, Canada
 * www.Robojax.com

If you found this tutorial helpful, please support me so I can continue creating 
content like this. Make a donation using PayPal by credit card https://bit.ly/donate-robojax
  
 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.

 * 
 */

const int greenLEDPin = 2;//define a pin for green LED
const int redLEDPin = 3;//define a pin for red LED

const int ON_TIME = 500;


void setup() {
 pinMode(greenLEDPin, OUTPUT);//define a pin for green LED
 pinMode(redLEDPin, OUTPUT);//define a pin for red LED


  Serial.begin(9600);//initialize the serial monitor
  Serial.println("Robojax See Saw");//print this text on Serial Monitor

}

void loop() {
 
  digitalWrite(greenLEDPin, HIGH);
     Serial.println("Green LED ON");
  delay(ON_TIME);
  digitalWrite(greenLEDPin, LOW);

  digitalWrite(redLEDPin, HIGH);
     Serial.println("Red LED ON");
  delay(ON_TIME);
  digitalWrite(redLEDPin, LOW);
  

// Watch full details and demonstration: https://youtu.be/7xTHaFdCyaI
}