tr1openclose.py

#!/usr/bin/python
import hal, time
h = hal.component("tr1openclose")
h.newpin("open_close", hal.HAL_BIT, hal.HAL_IN)
h.newpin("rev_prox", hal.HAL_BIT, hal.HAL_IN)
h.newpin("fwd_prox", hal.HAL_BIT, hal.HAL_IN)
h.newpin("ev_fwd", hal.HAL_BIT, hal.HAL_OUT)
h.newpin("ev_rev", hal.HAL_BIT, hal.HAL_OUT)
h.ready()
try:
    while 1:
        time.sleep(0.01)
        if h["open_close"] == 0 && h["rev_prox"] == 1 && h["fwd_prox"] == 0:
            # State: closed
            h["ev_fwd"] = 0
            h["ev_rev"] = 0
        if h["open_close"] == 1 && h["fwd_prox"] == 0: # (don't care about rev_prox)
            # State: opening
            h["ev_fwd"] = 1
            h["ev_rev"] = 0
        # etc. etc.
except KeyboardInterrupt:
    raise SystemExit