def beep(self, frequency=0, duration=0.1, repeat=0):
"""Make the sign beep.
:param frequency: frequency integer (not in Hz), 0 - 254
:param duration: beep duration, 0.1 - 1.5
:param repeat: number of times to repeat, 0 - 15
:rtype: None
"""
if frequency < 0:
frequency = 0
elif frequency > 254:
frequency = 254
duration = int(duration / 0.1)
if duration < 1:
duration = 1
elif duration > 15:
duration = 15
if repeat < 0:
repeat = 0
elif repeat > 15:
repeat = 15
pkt = packet.Packet(
"%s%s%02X%X%X" %
(constants.WRITE_SPECIAL, "(2", frequency, duration, repeat))
self.write(pkt)
def clear_memory(self):
"""Clear the sign's memory.
:rtype: None
"""
pkt = packet.Packet("%s%s" % (constants.WRITE_SPECIAL, "$"))
self.write(pkt)
time.sleep(1)
def soft_reset(self):
"""Perform a soft reset on the sign.
This is non-destructive and does not clear the sign's memory.
:rtype: None
"""
pkt = packet.Packet("%s%s" % (constants.WRITE_SPECIAL, ","))
self.write(pkt)
def set_run_sequence(self, files, locked=False):
"""Set the run sequence on the device.
This determines the order in which the files are displayed on the device, if
at all. This is useful when handling multiple TEXT files.
:param files: list of file objects (:class:`alphasign.text.Text`,
:class:`alphasign.string.String`, ...)
:param locked: allow sequence to be changed with IR keyboard
:rtype: None
"""
seq_str = ".T"
seq_str += locked and "L" or "U"
for obj in files:
seq_str += obj.label
pkt = packet.Packet("%s%s" % (constants.WRITE_SPECIAL, seq_str))
self.write(pkt)
def allocate(self, files):
"""Allocate a set of files on the device.
:param files: list of file objects (:class:`alphasign.text.Text`,
:class:`alphasign.string.String`, ...)
:rtype: None
"""
seq = ""
for obj in files:
size_hex = "%04X" % obj.size
# format: FTPSIZEQQQQ
if type(obj) == alphasign.string.String:
file_type = "B"
qqqq = "0000" # unused for strings
lock = constants.LOCKED
else: # if type(obj) == alphasign.text.Text:
file_type = "A"
qqqq = "FFFF" # TODO(ms): start/end times
lock = constants.UNLOCKED
alloc_str = (
"%s%s%s%s%s" % (
obj.label, # file label to allocate
file_type, # file type
lock,
size_hex, # size in hex
qqqq))
seq += alloc_str
# allocate special TARGET TEXT files 1 through 5
for i in range(5):
alloc_str = (
"%s%s%s%s%s" % (
"%d" % (i + 1),
"A", # file type
constants.UNLOCKED,
"%04X" % 100,
"FEFE"))
seq += alloc_str
pkt = packet.Packet("%s%s%s" % (constants.WRITE_SPECIAL, "$", seq))
self.write(pkt)