arduino-uno - LinuxCNC Driver pair

  267 Feb 22 07:13 halcmd.hal		example HAL-file (use "halrun")

 7,2K Feb 22 13:07 etheraw.ino          sourcecode for arduino-Uno

  15K Feb 22 16:12 ethraw.comp          linuxCNC component-driver

  16K Feb 22 18:19 pcIOethRaw.c         standalone PC-arduino I/O-test


 6,6K Feb 21 17:23 func.c		include-file
 2,8K Feb 21 17:23 commandline.c	include-file
 2,8K Feb 21 18:08 defs.h		include-file




10 output-pins
8   input-pins


TESTING
=======
Configure the MAC-adresses "myadr" and "radr" to your needs.
Compile programm, upload to arduino and start it.

Start tcpdump on the connected PC:
sudo tcpdump -i eno1 -s 2000 ether host af:fe:af:fe:af:fe or ether host 70:85:c2:89:68:b7

Whenever you change an arduino-input-pin, you should see packets like this
in your tcpdump:

11:22:06.902447 af:fe:af:fe:af:fe (oui Unknown) > 70:85:c2:89:68:b7 .... Unknown) Null Information, length 50
        0x0000:  0000 003f 0000 0000 001b 1b21 0000 0000  ...?.......!....
        0x0010:  0000 0000 0000 0000 0000 0000 0000 0000  ................
        0x0020:  0000 0000 0000 0000 0000 0000 1b00 2100  ..............!.
        0x0030:  0000                                     ..


On the PC-side start 
sudo ./pcIOethRaw -i eno1 -s af:fe:af:fe:af:fe  -r 70:85:c2:89:68:b7 

press "o" (for output-mode) - no echo

press number-keys 1-8. 
each key toggles an output pin (A0 - A7) of the arduino. 

press "+".
you will get: "IO-byte:1"

press key "1" or "2".
they will toggle output-pins "A9" and "A10".





more installation-hints: look into sourcecode -