aprs-python/aprslib/packets/telemetry.py

113 lines
2.9 KiB
Python

from aprslib.packets.base import APRSPacket
class TelemetryAddon(object):
_analog_values = None
_sequence_number = 0
_digital_value = 0
def __init__(self, *args, **kwargs):
self._analog_values = AnalogList()
super(TelemetryAddon, self).__init__( *args, **kwargs)
@property
def analog_values(self):
return self._analog_values
@analog_values.setter
def analog_values(self, v):
if not isinstance(v, list):
raise TypeError("Expected analog_values to be list, got %s" % type(v))
if len(v) != 5:
raise ValueError("Expected a list of 5 elements, got a list of %d" % len(v))
self._analog_values[:] = v
@property
def sequence_number(self):
return self._sequence_number
@sequence_number.setter
def sequence_number(self, v):
if 0 <= v <= 999:
self._sequence_number = v
else:
raise ValueError("Value outside of range 0-999")
@property
def digital_value(self):
return self._digital_value
@digital_value.setter
def digital_value(self, v):
if 0 <= v <= 0xFF:
self._digital_value = v
else:
raise ValueError("Value outside of range 0-255")
class AnalogList(list):
def __init__(self):
list.__init__(self, [0] * 5)
def __setitem__(self, i, v):
if not 0 <= i <= 4:
raise IndexError("Index outside of range 0-4, got %d" % i)
if not 0 <= v <= 999:
raise ValueError("Value outside of range 0-999, got %d" % v)
else:
list.__setitem__(self, i, v)
def __setslice__(self, i, j, v):
if i > j:
i, j = j, i
for x in range(max(0, i), min(5, j)):
list.__setitem__(self, x, v[x])
def append(self, a):
raise NotImplementedError("not supported")
def remove(self, a):
raise NotImplementedError("not supported")
def pop(self, a):
raise NotImplementedError("not supported")
def extend(self, a):
raise NotImplementedError("not supported")
def insert(self, a, b):
raise NotImplementedError("not supported")
class TelemetryReport(TelemetryAddon, APRSPacket):
@property
def format(self):
return 'telemetry'
_comment = ''
@property
def comment(self):
return self._comment
@comment.setter
def comment(self, v):
if isinstance(v, str):
self._comment = v
else:
raise TypeError("Expected comment to be of type str, got %s" % type(v))
def _serialize_body(self):
return ("T#" + ("{:03d}," * 6) + "{:08b}{:s}").format(
self.sequence_number,
self.analog_values[0],
self.analog_values[1],
self.analog_values[2],
self.analog_values[3],
self.analog_values[4],
self.digital_value,
self.comment,
)