External E-Stop

dennis.lewis5
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Fresh Boarder

31 Dec 2020 22:53 #193685 by dennis.lewis5

Replied by dennis.lewis5 on topic External E-Stop

Thanks for your interest. I have (hopefully) attached a pdf with a description and photo of the e-stop module. A copy of the schematic is included as well.

If you would like to build one I have boards available as well as the pic micro.

Regards, Dennis

And Happy New Year.

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rodw
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01 Jan 2021 07:38 - 01 Jan 2021 07:39 #193704 by rodw

Replied by rodw on topic External E-Stop

I had to say it. I don't think its necessary to use hardware to achieve what your board does. You could use the sigggen component to flash the lights. Here is an example which i now have running stack lights. The green light flashes and you could apply the same approach to the red light for estop.

Last edit: 01 Jan 2021 07:39 by rodw.

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dennis.lewis5
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06 Jan 2021 03:50 #194186 by dennis.lewis5

Replied by dennis.lewis5 on topic External E-Stop

Interesting. This could be implemented if I had enough i/o. Since I am using a single parport that is kind of scarce.

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rodw
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06 Jan 2021 04:00 #194187 by rodw

Replied by rodw on topic External E-Stop

dennis.lewis5 wrote: Interesting. This could be implemented if I had enough i/o. Since I am using a single parport that is kind of scarce.

Add a second par port? Might have been a lot easier.. and cheaper

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dennis.lewis5
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06 Jan 2021 04:52 #194189 by dennis.lewis5

Replied by dennis.lewis5 on topic External E-Stop

That is an option that is under consideration. I have the necessary hardware. I am in the process of refreshing my controls and if it comes down to it the second parport will be implemented. Right now I am exploring using a Raspberry pi with a modified PICnc-V2 that will provide me with ample i/o and get rid of the pc.

github.com/kinsamanka/PICnc-V2

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ikkuh
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07 Jan 2021 11:07 - 07 Jan 2021 11:08 #194350 by ikkuh

Replied by ikkuh on topic External E-Stop

dennis.lewis5 wrote: if it comes down to it the second parport

If it is about inputs, I use a cheap Arcade Joystick usb board that gives me a lot of inputs for very low cost. I changed the buttons for arcade buttons with an LED in them, better quality and it looks very nice. I use the Joystick for x-y movement, but if you leave out the joystick you have another 4 inputs.
Btw, using the Toggle component in your hal files for these inputs will make efficient use of the inputs. You only need one input to signal an on or off signal.

Snippet from my postgui.hal (I am using gmoccapy):

############### joystick, usb, bob
loadusr -W hal_input -KRAL DragonRise
  net Pgm-run          <= halui.program.run       <= input.0.btn-joystick
  net Pgm-stop         <= halui.program.stop      <= input.0.btn-thumb
  net Pgm-pause        <= halui.program.pause     <= input.0.btn-thumb2
  net Pgm-resume       <= halui.program.resume    <= input.0.btn-top
  net Pgm-step         <= halui.program.step      <= input.0.btn-top2

A Toggle example from my postgui.hal:

#***** Toggle
  loadrt toggle2nist names=toggle.0,toggle.1

  addf toggle.0 servo-thread
  addf toggle.1 servo-thread

#***** /Toggle
  setp hm2_7i96.0.gpio.036.is_output true ## mist

# Mist Button ########
 net mist_toggle_debounced debounce.0.0.in <= input.0.btn-pinkie  
 net mist-toggle toggle.0.in <= debounce.0.0.out
 net mist-on toggle.0.on => halui.mist.on
 net mist-off toggle.0.off => halui.mist.off
 net mist-control halui.mist.is-on => toggle.0.is-on => hm2_7i96.0.gpio.036.out

Ask Jerry did a nice couple of videos on Youtube about this solution, he has many more nice videos btw.
part 1

part 2

JoyStick kit:
www.aliexpress.com/item/4001291138332.ht...02_,searchweb201603_

Just the USB boards:
www.aliexpress.com/item/4000160124825.ht...02_,searchweb201603_

Better buttons with LED:
www.aliexpress.com/item/4001316815891.ht...02_,searchweb201603_

www.aliexpress.com/item/32840724833.html...02_,searchweb201603_

Last edit: 07 Jan 2021 11:08 by ikkuh. Reason: typos

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External E-Stop

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