Large Stepper Code does not work

@ralphxyz 

Yes, definitely put in some Serial.print statements to display the values of direct and pulseDelay inside the loop. That'll slow down the motor (which will get the pulse commands slower) but it'll help see what the controls are doing (if anything).

This is what I am seeing:

1394 2
1392 2
1330 2
1444 2
1284 2
1465 2
1301 2
1423 2
1354 2
1356 2
1410 2
1303 2
1457 2
1288 2
1452 2
1330 2
1402 2
1392 2
1337 2
1444 2
1293 2
1471 2
1301 2
1434 2
1352 2
1370 2
1411 2

pulseDelay = map(analogRead(revPin),0,1023,2000,50);
digitalWrite(dirPin,direct); // Set direction

Serial.print(pulseDelay,DEC); // prints a tab
Serial.print("\t"); // prints a tab
Serial.print(dirPin,DEC);
Serial.print("\t"); // prints a tab
Serial.println(); // carriage return after the last label

@ralphxyz 

Very strange. Please show me your wiring for both the switch and the pot.

Also, you'll need to use at least a 5K linear potentiometer.

Can you run that test again while turning the pot through its entire range and back please ? I want to see what effect changing the pot has over its whole range.

I was turning the pot and pushing the button but neither seemed to effect the motor.

Pot and Arduino

Microstep Driver

Ralph

Posted by: @ralphxyz

This is what I am seeing:

pulseDelay = map(analogRead(revPin),0,1023,2000,50);

My error, that should read 

pulseDelay = map(analogRead(spdPin),0,1023,2000,50);

i.e. AnalogRead(spdPin) not revPin.

Should lastInt = millis(); show a value for lastInt?

Serial.print(lastInt,DEC); shows nothing.

Ralph

@ralphxyz 

try Serial.println(lastInt);

I corrected the spdPin error.

Here is video of the motor turning:

The pot is certainly working

Turn up your speaker volume to hear the motor.

Ralph

Serial.println(lastInt); still shows 0

Ralph

Posted by: @ralphxyz

I corrected the spdPin error.

Here is video of the motor turning:

The pot is certainly working

Good, then we're making at least some progress 🙂

Is your switch reversing properly ? You'll need to look up what pins on your Arduino are interruptible and use one of those. I chose pin 5 for use but it may not be appropriate for your Arduino model.

Bt the way, please use the Reply icon at the bottom of the message box. That sends me an email telling me that I have a reply, otherwise I just check randomly depending on which computer I'm using for what.

Yes we are making good progress!

No the switch does nothing.

As you could see in the video the motor is just barely turning even though the pulseDelay 

goes from @50 to @2000.

Ralph

@ralphxyz 

What model Arduino are you using and how is your switch wired ?

What level of micro stepping are you using ?

I am using a Adafruit Metro, which I believe is 386 based so it should have a lot more interrupt pins.

I cannot find any documentation on which pins are interrupt enabled.

I am using a Momentary On/Off switch.

Ralph

@ralphxyz 

Which Metro ? Mini, M4, M0, ... ?

How is your switch wired (to what pins are the ends connected) ?

What level of micro stepping are you using ?

Posted by: @ralphxyz

I am using a Adafruit Metro

So, back a couple of days ago, when I asked you "Which part of your setup doesn't exactly match Bill's setup ?", it didn't occur to you to mention that you weren't using an Arduino ????