def handle_quality(self, sensors):
"""
Sets the quality value for the sensor from the quality bits in the packet data.
Optionally will return the value.
:param sensors - reference to sensors dict in Emotiv class.
"""
current_contact_quality = get_level(self.raw_data, quality_bits)
if sys.version_info >= (3, 0):
sensor_bit = self.raw_data[0]
else:
sensor_bit = ord(self.raw_data[0])
if sensor_quality_bit.get(sensor_bit, False):
sensors[sensor_quality_bit[sensor_bit]]["quality"] = current_contact_quality
else:
sensors["Unknown"]["quality"] = current_contact_quality
sensors["Unknown"]["value"] = sensor_bit
return sensor_bit, current_contact_quality
def __init__(self, data):
"""
Initializes packet data. Sets the global battery value.
Updates each sensor with current sensor value from the packet data.
:param data - Values decrypted to be processed
"""
if sys.version_info >= (3, 0):
self.raw_data = [int(bit) for bit in data]
data = self.raw_data
self.counter = data[0]
else:
if type(data[0]) == str and len(data[0]) > 1:
self.raw_data = [chr(int(bit)) for bit in data]
data = self.raw_data
else:
self.raw_data = data
self.counter = ord(data[0])
self.battery = None
if self.counter > 127:
self.battery = battery_values[str(self.counter)]
self.counter = 128
self.sync = self.counter == 0xE9
self.sensors = sensors_mapping.copy()
if sys.version_info >= (3, 0):
self.sensors["X"]["value"] = data[29] - 106
self.sensors["Y"]["value"] = data[30] - 105
self.sensors["Z"]["value"] = "?"
else:
self.sensors["X"]["value"] = ord(data[29]) - 106
self.sensors["Y"]["value"] = ord(data[30]) - 105
self.sensors["Z"]["value"] = "?"
for name, bits in sensor_bits.items():
# Get Level for sensors subtract 8192 to get signed value
value = get_level(self.raw_data, bits) - 8192
setattr(self, name, (value,))
self.sensors[name]["value"] = value
self.quality_bit, self.quality_value = self.handle_quality(self.sensors)
