/* Made by Jefferson Sandoval for the Interface and Application Programming during the 
 * FabAcademy2021
 *  
 * This is a simple code in Arduino for to test an interface made with Tkinter to control a  
 * DC motor controller board.
 * 
 * This code was uploaded to a board with an Attiny1614 microcontroller. Documentation:
 * http://fabacademy.org/2021/labs/kamplintfort/students/jefferson-sandoval/assignments/week15/
 * 
 * Board documentation:
 * http://fabacademy.org/2021/labs/kamplintfort/students/jefferson-sandoval/assignments/week13/
 */

const int motorPin1 = 0; //Pin 1 for motor
const int motorPin2 = 1; //Pin 2 for motor
const int Enable = 2; //Enable pin of motor
int speed=255; //Speed for motor (100%)
char serialData; //Variable to read the data

void setup() {
Serial.begin(9600); //Start serial communication
pinMode(motorPin1, OUTPUT); //Set pin1 as output
pinMode(motorPin2, OUTPUT); //Set pin2 as output
pinMode(Enable, OUTPUT); //Set Enable pin as output
digitalWrite(Enable, 1); //Enable the motor
}

void loop(){
if(Serial.available()>0){
    serialData = Serial.read(); //Read incoming data and assign it to serialData variable

    //if incoming data is "1", rotate motor on ClockWise direction
    if(serialData == '1'){
        analogWrite(motorPin1, speed);
        analogWrite(motorPin2, 0);}

    //if incoming data is "2", rotate motor on CounterClockWise direction
    if(serialData == '2'){
        analogWrite(motorPin1, 0);
        analogWrite(motorPin2, speed);}

    //if incoming data is "0", Turn off the motor
    if(serialData == '0'){
        analogWrite(motorPin1, 0);
        analogWrite(motorPin2, 0);}
    }
}