DIY Shapeoko CNC Pendant -- Episode 420

I have made the project and can confirm that the original code runs just fine.

The behavior you described is how it is intended to function, as you can see from the code:

When pressing one of the speed buttons, the activespeed variable is being changed.

  if (buttonFast.fallingEdge()) {

    activeSpeed = SPD_FAST;

  }

The next time the loop() executes, the if statement triggers and presses a key (KEY_4)

if (activeSpeed != lastSpeed){

    digitalWrite(lastSpeedLED, LOW);

    switch(activeSpeed){

      case SPD_FAST:

        Keyboard.press(KEY_4);

        Keyboard.release(KEY_4);

        digitalWrite(PIN_LED_FAST, HIGH);

        lastSpeedLED = PIN_LED_FAST;

      break;

When pressing one of the X, Y, Z buttons, the activeAxis variable is being changed.

(uncomment the serial print to verify if your button works)

  if (buttonX.fallingEdge()) {

    activeAxis = X_AXIS;

    //Serial.println("X");

  }

HOWEVER, the corresponding button (KEY_RIGHT) is ONLY being pressed when the encoder is turned.
Pressing the X, Y or Z button only will NOT press any keyboard key.

  if (abs(newScrollPos - lastScrollPos) >= 4) { // there are roughly four presses detected from each rotation to the next detent

    if (newScrollPos - lastScrollPos > -1){ // positive increase

      switch(activeAxis){

      case X_AXIS:

        Keyboard.press(KEY_RIGHT);

        Keyboard.release(KEY_RIGHT);

      break;

In conclusion: if your CNC doesn't move, your rotary encoder is probably badly connected.

Check the connections from encoder to teensy (also the middle ground pin). If that fails, I would buy a new encoder and try again.

Hope this helped

Thomas

Hello Thomas, thank you so much for helping me out with this, it's driving me nuts.   I bought 2 encoders, so I'll try changing them out today.  I checked the impedance on the encoder, and it changed as I rotated it, so I assumed it was working.  I used the three sided pins of the encoder, outer pin goes to pin 9 on the controller, the center pin is to ground, and the other outer pin is connected to pin 10 on the controller.   I opened the serial monitor and uncommitted the serial print line and each time I press the X,Y,X buttons it shows on the output of the serial monitor screen.  Should it repeat the X,Y,Z on the screen if I turn the encoder?   I'm still learning how to program, so this is way above my understanding.  Is there any way to see if the controller is actually sending the commands, like KEY_RIGHT?  I really need to get this working, so I really appreciate your help.  I just can't figure out what I'm doing wrong.  I have tried it on Easel, and Universal Gcode Sender, and my CNC doesn't move, but it moves if I use the up,down,left,right on my keyboard.

No, I just tried that small sketch and the Serial Monitor showed that the encoder was doing what it should.  Still don't know why my other sketch isn't working.  Do you see anything wrong in the output I provided?

I don't see any issues. Send me the exact file you are using right now, I'll take another look.

Try downloading the original file again, maybe you accidentally changed something..

The file I sent is the original file.  I downloaded it right before I sent you the data.  Maybe I'm missing something on my pin inputs.  I connected everything to the sketch pin call out, but maybe there is something else that I'm not aware of.  Here are some pics of the Teensy pins that I'm using.  I only connected one ground wire and it's the same grounds that the encoder is connected to.  I do see there is another ground shown on the schematic but I didn't connect anything to it.  If the program ran fine for you, and if my pin connections look correct, the only thing I can think of is the Teensy isn't working correctly, but it was brand new.

You could try to program the Teensy via another PC, preferably with a fresh install of Arduino IDE and the necessary libraries.

If that fails, try a Teensy 2.0, which I am using. I don't have a Teensy 3.2 to test.

That's what I did on the one I sent you.  I loaded everything on my surface pro.   I've been trying to change the program so it only has a KEY_RIGHT command to see if I could open a word document and turn the encoder and get the courser to move to the right when I turn it.  But I haven't figured out how to do it yet, I keep getting error messages when I try to verify.  I just bought the Teensy LC  maybe I'll try that and see if it works, I really don't want to have to buy another Teensy.  Have you tried to see if your's will move the courser in a document? If the computer just thinks it's another keyboard, shouldn't it move the courser around?

Yeah, all keystrokes work since it simply emulates a keyboard.

Hopefully the LC will work!

I'll let you know, after I try it.  Do you use yours on the  Shapeoko ?

No, I modified mine to run my Xcarve.

But all keyboard commands are working for me (also arrow keys etc. )

OK, I'm trying to use this on the xPro V3 controller, which I think was used on some of the Xcarve machines.  Can you tell me the changes you made for it to work on your Xcarve, or share the sketch and let me try that?

I tried the Teensy LC and still no go.  I must be doing something wrong.  I'm following the pin connection per the sketch.  I ordered the Teensy 2 but I don't think it's the Teensy.  When I plug the Teensy in to the computer after I flash it, it says setting up keyboard, then comes back and says keyboard ready to use??

I tried the Teensy LC and still no go.  I must be doing something wrong.  I'm following the pin connection per the sketch.  I ordered the Teensy 2 but I don't think it's the Teensy.  When I plug the Teensy in to the computer after I flash it, it says setting up keyboard, then comes back and says keyboard ready to use??

Strange... it has to be a problem in the code...

It can't be the teensy, since the example sketch of the rotary encoder did work.

Try changing:

  for (int ii = 2; ii < 11; ii++) pinMode(ii, INPUT_PULLUP);

To:

  for (int ii = 2; ii < 9; ii++) pinMode(ii, INPUT_PULLUP);

Otherwise, try starting with only the code related to the rotary encoder. If that works, you can start adding pieces of code bit by bit and see wheter it keeps working fine.

Thank you, Thank you, Thank you  Thomas, that was it.  Moves in X, Y, and Z as I turn the encoder.  The only thing that doesn't work is the speed, but I don't think there is a way to control the speed in Easel using the keyboard.  Now I just have to print the 3D models and carve and engrave the face plate.  Can't wait to get it done.  Thanks again.  Dave...............

Great!!! That really was my last hope :-D

I don't use Eagle myself, so I don't know about the speed.

I'm glad that it works in the end, have fun with it!

thanks you, I had the same probleme and i've resolve him thanks you verry much

Another thank you, had same issue and that fixed it.