A simple pendant for using cncjs with a num pad (as Wireless/USB Input). The code is based on cncjs-pendant-keyboard
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NOTICE: Tested with LogiLink num pad on Linux/Raspbian (Raspberry Pi). (default options are set to LogiLink vendor- and productID, see description below for running with other vendors/products)
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Make sure you have installed the following packages
libusb-1.0-0-dev
libudev-dev
These can be installed with apt-get.
After cloning the repository to your work directory, change into this directory and run
npm install
Some additional configurations are needed for making the device working for non-root users.
First create a new file called
/etc/udev/rules.d/50-hid.rules
add the following line as content, which grants access to the hid device for non-root users.
KERNEL=="hidraw*", GROUP="input", MODE="0660"`
Then run the following command for making the changes work ( a reboot will also do this job).
sudo udevadm trigger
Run bin/cncjs-pendant-numpad to start. Pass --help to cncjs-pendant-numpad for more options.
bin/cncjs-pendant-numpad --help
Hotkeys:
| Key | Function |
|---|---|
| NUM LOCK | zero out work offset x and y |
| / | step in 0.1 units |
| * | step in 1.0 units |
| Back Space | step in 10.0 units |
| 7 (HOME) | move -X and +Y |
| 8 (UP) | move +Y |
| 9 (PG UP) | move +X and +Y |
| 4 (LEFT) | move -X |
| 5 | repeat last action |
| 6 (RIGHT) | move +X |
| 1 (END) | move -X and -Y |
| 2 (DOWN) | move -Y |
| 3 (PG DN) | move +X and -Y |
| 0 (INS) | unlock ($X GRBL) |
| . (DEL) | probe tool offset |
| - | z axis up |
| + | z axis down |
| ENTER | home X and Y |
You can download a SVG file for labels here.
The probe offset default is set to 1.56 mm ( i am using a piece of PCB with a thickness of 1.56 mm). You can override this by giving the pendant an extra start parameter for probe offset.
--probeoffset <value>
Because the keycodes for HID devices are the same for all keyboards, this should also work with other Numpad's than LogiLink. Just find out the vendorID and productID of your device and start the pendant with --vendorid and --productid parameter.
Just run the following command to find out the vendor- and productId of your device
lsusb
The output might look like
Bus 001 Device 004: ID 062a:4101 MosArt Semiconductor Corp. Wireless Keyboard/Mouse
In this example the vendorID is 0x062a and the productID 0x4101. So you you need to start the pendant with the following additional parameters
--vendorid 0x062a --productid 0x4101