What solution exists for mill front panel button inputs? These are non critical real time inputs
for example extra inputs for front panel buttons like cycle start/stop/pause/ +- x+-y+-z+-a/flood/mist/tool clamp/spindle cw-ccw-stop.
Can i use parallel port for these or something
from usb port like arduino or rs232 or rs485 port?
Yes, parallel port works for that, normally it has only 5 inputs but it can be st to "input" mode giving you 13 inputs and 4 outputs.
There are also some Arduino projects around here, but i never used them.
You just specify input on the hal command line that instantiates the driver (hal_parport or rtapi_parport), and it will export the needed hal pins.
Jon
