Need help with AccelStepper.h code. Simple elevator with up and down buttons

this first post. if i'm in wrong place tell me post.

the following code runs cw 2 turns , ccw 2 turns forever.
i'm trying add , down buttons simple elevator. i'm sure simple if know code.
i know electronics don't know programming. have commented out attempt @ adding code buttons. can make them work not should. on issue great.


#include <accelstepper.h> 
 
#define halfstep 8 
 
#define motorpin1  8     // in1 on uln2003 ==> blue   on 28byj-48 
#define motorpin2  9     // in2 on uln2004 ==> pink   on 28byj-48 
#define motorpin3  10    // in3 on uln2003 ==> yellow on 28byj-48 
#define motorpin4  11    // in4 on uln2003 ==> orange on 28byj-48 
 
const int down_button = 2; //set our button constants
const int up_button = 3; //set our button constants
const int up_limit = 4;
const int down_limit = 5;
const int downled = 12;
const int upled = 13;
int endpoint = 8192;        // move many steps -
//1024 = approx 1/4 turn
//8192 = 2 turns
 
// note: sequence 1-3-2-4 required proper sequencing of 28byj-48 
accelstepper stepper1(halfstep, motorpin1, motorpin3, motorpin2, motorpin4); 
 
void setup() 
{
  serial.begin(9600); 
  serial.println(stepper1.currentposition()); 
  delay(5000); 
  pinmode(down_button, input); //set i/o
  pinmode(up_button, input); //set i/o
  pinmode(downled, output); //setup our down led
  pinmode(upled, output); //setup our led
  stepper1.setmaxspeed(1000.0); 
  stepper1.setacceleration(100.0); 
  stepper1.setspeed(200); 
   
} 
 
void loop() 
{ 
   // if (digitalread(down_button) == low) // lets go down
stepper1.moveto(endpoint);
   
   // if (stepper1.distancetogo() == 0 && digitalread(up_button) == low) // lets go up
    if (stepper1.distancetogo() == 0)
   { 
     serial.println(stepper1.currentposition()); 
     stepper1.setcurrentposition(0); 
     endpoint = -endpoint; 
     stepper1.moveto(endpoint); 
     serial.println(stepper1.currentposition()); 
   } 
    stepper1.run(); 
}

here same code in code tags - easy read , copy

code: [select]



#include <accelstepper.h> 
 
#define halfstep 8 
 
#define motorpin1  8     // in1 on uln2003 ==> blue   on 28byj-48 
#define motorpin2  9     // in2 on uln2004 ==> pink   on 28byj-48 
#define motorpin3  10    // in3 on uln2003 ==> yellow on 28byj-48 
#define motorpin4  11    // in4 on uln2003 ==> orange on 28byj-48 
 
const int down_button = 2; //set our button constants
const int up_button = 3; //set our button constants
const int up_limit = 4;
const int down_limit = 5;
const int downled = 12;
const int upled = 13;
int endpoint = 8192;        // move many steps -
//1024 = approx 1/4 turn
//8192 = 2 turns
 
// note: sequence 1-3-2-4 required proper sequencing of 28byj-48 
accelstepper stepper1(halfstep, motorpin1, motorpin3, motorpin2, motorpin4); 
 
void setup() 
{
  serial.begin(9600); 
  serial.println(stepper1.currentposition()); 
  delay(5000); 
  pinmode(down_button, input); //set i/o
  pinmode(up_button, input); //set i/o
  pinmode(downled, output); //setup our down led
  pinmode(upled, output); //setup our led
  stepper1.setmaxspeed(1000.0); 
  stepper1.setacceleration(100.0); 
  stepper1.setspeed(200); 
   
} 
 
void loop() 
{ 
   // if (digitalread(down_button) == low) // lets go down
stepper1.moveto(endpoint);
   
   // if (stepper1.distancetogo() == 0 && digitalread(up_button) == low) // lets go up
    if (stepper1.distancetogo() == 0)
   { 
     serial.println(stepper1.currentposition()); 
     stepper1.setcurrentposition(0); 
     endpoint = -endpoint; 
     stepper1.moveto(endpoint); 
     serial.println(stepper1.currentposition()); 
   } 
    stepper1.run(); 
}

quote

code runs cw 2 turns , ccw 2 turns forever.

that's program tells do.

you should reorganize code loop() this

code: [select]

void loop() {
   readbuttons();
   updateendpoint();
   movemotor();
}

and put of code in movemotor() function. move end-point. code in function updateendpoint() change destination motor when appropriate - i.e. after appropriate button has been pressed.

see planning , implementing program

...r

Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Need help with AccelStepper.h code. Simple elevator with up and down buttons

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