# Connect to RPyC server and get main object
connection = rpyc.connect_by_service("TAMAGOTCHIP")
r = connection.root
except DiscoveryError, e:
return FAIL, "Serial interface daemon unreachable."
except Exception, e:
# Ugly hack to catch the SerialException, but only that one
# Exceptions through RPyC are a little hard to track.
if isinstance(e, collections.Iterable) and \
"SerialException" in e.args[0]:
return FAIL, "Microcontroller unavailable."
else:
raise e
else:
# Reset communication to microcontroller and set new states
msg = r.set_states(states)
# Close nicely, and relay feedback to caller
connection.close()
return SUCCESS, msg
@usercommand
def flow_red():
""" Flow in red ink. (by opening the corresponding valves) """
set_states([1, 1, 1, 1, 1, 0, 1, 1, 0] + [0] * 3)
r.set("state_msg", "Flowing red dye.")
@usercommand
def flow_blue():
""" Flow in blue ink. (by opening the corresponding valves) """
set_states([0, 1, 1, 1, 1, 0, 1, 1, 1] + [0] * 3)
