UPDATE: PROBLEM SOLVED
Please check my last post there i have explained a little bit more about how i got it to work.
ORIGINAL POST:
Hi, i am using a generic dc motor with an H bridge, a button as a trigger and 2 limit switches to stop the motor when it reaches either of the switches. i am using bounce2 library and input pullups so i think the high and low states are inverted. so i am using HIGH when its not being pressed and low when it is being pressed.
What i want to do:
assuming motors arm is at one limit switch, and stopped for the time being. when the trigger is pressed with button, only then i want the arduino to calculate which limit switch is pressed so that it can go opposite to that limit switch and keep going until it touches the other limit switch, stop, and wait for the trigger again.
I am going to have a sensor reading data continuously so cant use delay(); but i can spare a few seconds for the motor to perform this action if its impossible to do otherwise.
My Problem:
The code works kinda. when i press the trigger, it determines which way its at but this works for one limit switch only. i dont know why i that is. since i have copied the same method for the other limit switch.
It always registers the limit switches. its tested and no fault there.
but sometimes it works sometimes it doesn't. for example. if i keep pressing it, it will carry out the function sometimes and sometimes it wont.
when the function does work,the motor does not stop when the other limit switch is pressed. it just keeps going.
i know there are too many problems but after having tried for about 1 week. i am tired. and need some guidance.
i attached the current code i am working with. i know i must have mutilated the code there. and i am sorry for that. im a newbie. 
#include <Bounce2.h>
int function = 0;
bool triggerStart = false; //trigger to start motor
bool triggerStop = false; // trigger to stop motor
bool goRight = false;
bool goLeft = false;
bool isTime = false;
const byte m1 = 4;
const byte m2 = 3;
const byte s1 = 7;
const byte s2 = 8;
const byte trigger = 11;
bool s1State;
bool s2State;
bool triggerState;
bool prevS1State = 0;
bool prevS2State = 0;
bool startMotor = 0;
bool wasGoingLeft;
bool wasGoingRight;
bool motorStopped;
bool high = LOW; //since switches are inverted. when its low. it will be high
bool low = HIGH;
Bounce debouncer1 = Bounce();
Bounce debouncer2 = Bounce();
Bounce debouncer3 = Bounce(); //trigger for motor
void setup() {
// put your setup code here, to run once
pinMode(m1, OUTPUT);
pinMode(m2, OUTPUT);
pinMode(s1, INPUT_PULLUP);
debouncer1.attach(s1);
debouncer1.interval(25);
pinMode(s2, INPUT_PULLUP);
debouncer2.attach(s2);
debouncer2.interval(25);
pinMode(trigger, INPUT_PULLUP);
debouncer3.attach(trigger);
debouncer3.interval(25);
Serial.begin(9600);
//assuming motor is already one one junction
Serial.println("Incubator starting. motor is now at rest");
delay(2000);
}
void loop() {
// put your main code here, to run repeatedly:
bool m1State = digitalRead(m1);
bool m2State = digitalRead(m2);
debouncer1.update();
debouncer2.update();
debouncer3.update();
triggerState = debouncer3.read(); //trigger
s1State = debouncer1.read(); //switch are input pullup. high state is zero
s2State = debouncer2.read();
//startMotor = 0; //turn off this trigger in order to not loop back.
if(debouncer3.fell()) //when trigger button is pressed
{
startMotor = true;
Serial.println("button to trigger start motor has been presssed");
}
if(startMotor == 1)
{
switch(function)
{
case 0: //checks if time
isTime = 1;
function = 1;
Serial.println("At case 0. checking if its time");
break;
case 1: //its time so its going to determine where it is
if(isTime == 1)
{
Serial.println("trigger is pressed proceeding to case 1");
if(s1State == 1 && s2State == 0) //if one of the switch is high. label is left
{
goRight =1; //its left right now. so need to go right
goLeft = 0;
Serial.println("At case 1. determind motor is towards left and going right now");
function = 2;
}
if(s1State == 0 && s2State == 1) //if one of the switch is high. label is right
{
goLeft = 1; //is at right. go left
goRight = 0;
Serial.println("At case 1. determind motor is towards right and going left now");
function = 2;
}
}
break;
case 2: //once direction to go is determined. go that way
if(goRight== 1) //at s1 or left
{
Serial.println("At case 2. Going Right");
digitalWrite(m1, HIGH);
digitalWrite(m2, LOW);
function = 3;
}
if(goLeft == 1) //at s2 or right
{
Serial.println("At case 2. Going left");
digitalWrite(m1, LOW);
digitalWrite(m2, HIGH);
function = 3;
}
break;
case 3: //going to check if the motor has reached the desired switch yet
if(goRight == 1) //if motor is going towards right so we are going to monitor the right switch only
{
if(s2State == 1) //go right until s2 has become high
{
digitalWrite(m1, LOW);
digitalWrite(m2, LOW);
Serial.println("case 3. Motor reached right. motor stopping");
//stop motor
function = 4;
}
}
if(goLeft == 1) //if motor is going left
{
if(s1State == 0) //check to see if left switch is touched
{
digitalWrite(m1, LOW);
digitalWrite(m2, LOW);
Serial.println("At case 3.motor has reached left. Motor stopping");
function = 4;
}
}
break;
case 4:
Serial.print("At case 4.motor should have stopped. pressing the trigger will repeat the cycle");
Serial.println("exiting the switch case and waiting for the trigger");
isTime = 0;
function = 0;
break;
}
}
}
MY CURRENT CODE:
attached in last post in the thread. couldn't attach it here.
