Continuous push button detection in for Stepper control

Question

Currently, I've worked on code for controlling stepper motor with pushbuttons. So, basically, I have to press two push button to run forward and backwards. but the problem is when I press the 1st pushbutton it detects that pushbutton and run motor CW or CCW, That means it cannot detect the press of another pushbutton to make it counterclockwise.

I realize that the program isn't detecting the second push button after pressing 1st one. Tried different options to make it work. but failed.

any suggestions?

Here's my code for reference:-

#include <AccelStepper.h>
const int button1Pin = A2 ;
const int button2Pin = A1;
int button1State = 0;
int button2State = 0;
boolean flag1 = 0;
boolean flag2 = 0;
AccelStepper stepper = AccelStepper(1, 8, 9);
void setup()
{ 
 pinMode(button1Pin, INPUT);
 pinMode(button2Pin, INPUT); 
 
 Serial.begin(9600);
}
void loop()
{ 
 int sensorReading = analogRead(A0);
 int motorSpeed = map(sensorReading, 0, 1023, 500, 1000);
 button1State = digitalRead(button1Pin);
 button2State = digitalRead(button2Pin);
 stepper.setMaxSpeed(2000);
 stepper.setSpeed(motorSpeed);
 
 if (button1State == HIGH)
 {
 
 stepper.setSpeed(motorSpeed);
 Serial.print("ok");
 stepper.runSpeed();
 
 }
 
 if (button2State == HIGH)
 {
 Serial.print("ok2");
 stepper.setSpeed(-motorSpeed);
 stepper.runSpeed();
 }
}

Another problem is in this current code, it cannot detect the potentiometer input inside the if ( button state ) {} loop.

it would be a great help pointing out my mistakes.

• Rozona Zoro: See Arduino - button does not work
• Ihsan Ahmad Siddiquee: Hi can't it be done simply by coding?
• DataFiddler: What is your debug output saying? It's probably printing a lot. How often does it change between ok and ok2? Add a "stop" state (with Serial debug output), forget about the motor until you see the expected output lines properly. What should happen if both buttons are pressed? Should that kill the motor?
• Swedgin: ` That means it cannot detect the press of another pushbutton to make it counter clock wise` Why is that? How did you connect the buttons. | Also, I would set the max speed in the setup function since you only have to do this once.
• Big Al 62: this looks great, is there anything else i need to do to add a stepper, im struggling a bit, but with some friendly makers helping i know ill get this sorted. as im new to this site, G'Day FROM AUSTRALIA!!!!!!

Answer 1

I implemented your code here on a UNO using 2 pushbuttons (with the stepper motor functions commented out) and it seems to work fine. When I press button1 I get a lot of "ok" printouts for as long as the button is held down. When I press button2, the same thing happens except with "ok2" instead of "ok".

Here's the code I used:

/*
 Name: TwoPushButtonTest.ino
 Created: 9/28/2020 2:36:07 PM
 Author: FRANKNEWXPS15\Frank
*/
//#include <AccelStepper.h>
const int button1Pin = A2;
const int button2Pin = A1;
int button1State = 0;
int button2State = 0;
boolean flag1 = 0;
boolean flag2 = 0;
//AccelStepper stepper = AccelStepper(1, 8, 9);
void setup()
{
 pinMode(button1Pin, INPUT);
 pinMode(button2Pin, INPUT);
 Serial.begin(115200);
}
void loop()
{
 //int sensorReading = analogRead(A0);
 //int motorSpeed = map(sensorReading, 0, 1023, 500, 1000);
 button1State = digitalRead(button1Pin);
 button2State = digitalRead(button2Pin);
 //stepper.setMaxSpeed(2000);
 //stepper.setSpeed(motorSpeed);
 if (button1State == HIGH)
 {
 Serial.print("ok");
 //stepper.setSpeed(motorSpeed);
 //stepper.runSpeed();
 }
 if (button2State == HIGH)
 {
 Serial.print("ok2");
 //stepper.setSpeed(-motorSpeed);
 //stepper.runSpeed();
 }
}

and here's the wiring diagram:

enter image description here

Note the two 10K pull-down resistors. If these are not present, then the A2/A3 inputs are indeterminate whenever the buttons are in the 'disconnected' state, and anything can happen.