$10 Bluetooth Pendant

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xz81
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23 Sep 2015 15:07 #62880 by xz81

$10 Bluetooth Pendant was created by xz81

Hi, i just added a pendant to my machine using a Snakebyte idroid:con bluetooth gamepad I had over there. This gamepad can be configured to use it in keyboard mode, so the steps I have followed so far are:

1. Install bluetooth packets (may be I am not using some of them, but I am not a linux guru, so I just instaled them)

sudo apt-get update
sudo apt-get install bluez bluez-utils bluez-comp bluez-hcidump

2. Map the gamepad using xev (up, down, left and right cross are the same as the keyboard and I used L1 and L2 for Z axis ("q" and "x" keys)

3. In linuxcnc 2.7.0 there is no .axisrc file by defect (at least not in my fresh install), so I opened gedit and made this file:

#swap bind key
# Bind ( and ) to jog axis 3 (0=X, 1=Y, 2=Z, 3=A, 4=B, ...)
root_window.bind("<Up>", lambda e: jog_on(1, +get_jog_speed(1)))
root_window.bind("<Down>", lambda e: jog_on(1, -get_jog_speed(1)))
root_window.bind("<KeyRelease-Up>", lambda e: jog_off(1))
root_window.bind("<KeyRelease-Down>", lambda e: jog_off(1))
root_window.bind("<Left>", lambda e: jog_on(0, -get_jog_speed(0)))
root_window.bind("<Right>", lambda e: jog_on(0, +get_jog_speed(0)))
root_window.bind("<KeyRelease-Left>", lambda e: jog_off(0))
root_window.bind("<KeyRelease-Right>", lambda e: jog_off(0)) 
root_window.bind("<q>", lambda e: jog_on(2, +get_jog_speed(2)))
root_window.bind("<x>", lambda e: jog_on(2, -get_jog_speed(2)))
root_window.bind("<KeyRelease-q>", lambda e: jog_off(2))
root_window.bind("<KeyRelease-x>", lambda e: jog_off(2))

4. open a terminal window and look for your gamepad

bluez-test-discorery

5. pair the bluetooth gamepad wiht some like:

sudo hidd --connect MAC_ADDRESS

So far it works, but I have to connect it by hand every time (not so bad). In the future I will use the other buttons to connect the spindle and to change the travel speed.

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