def decode_tx29(binaryMsg):
"""
Decoding a LaCrosse/TFA sensor message.
"""
# lengths counts 4 bits (nibbles) excluding 1st one
givenLength = take(binaryMsg, 0, 4)
actualLength = len(binaryMsg) / 4 - 1
print(
"Length: actual={:02X}, received={:02X}, valid={}".format(
actualLength, givenLength, "yes" if (givenLength == actualLength) else "no"
)
)
givenCRC = take(binaryMsg, binaryMsg.size - 8, 8)
computedCRC = crc.crc(0x31, 8, 0, 0, binaryMsg[:-8])
print(
"CRC: computed={:02X}, received={:02X}, valid={}".format(
computedCRC, givenCRC, "yes" if (givenCRC == computedCRC) else "no"
)
)
devID = take(binaryMsg, 4, 6)
print("Device: id={:02X}".format(devID))
newBattery = take(binaryMsg, 10, 1)
weakBattery = take(binaryMsg, 24, 1)
print("Battery: new={}, weak={}".format("yes" if newBattery else "no", "yes" if weakBattery else "no"))
temperature = (take(binaryMsg, 12, 4) * 10 + take(binaryMsg, 16, 4) + take(binaryMsg, 20, 4) * 0.1) - 40
reserved = take(binaryMsg, 11, 1)
print("Reserved 0 bit: received={:01X}, valid={}".format(reserved, "yes" if (reserved == 0) else "no"))
humidity = take(binaryMsg, 25, 7)
if humidity == 106:
humidity = "N/A"
print("Temperature: {:+0.1f} C -- Humidity: {} %".format(temperature, humidity))
if givenCRC == computedCRC:
return Report(temperature, humidity, "TX29", devID)
def decode_tx29(binaryMsg):
'''
Decoding a LaCrosse/TFA sensor message.
'''
# lengths counts 4 bits (nibbles) excluding 1st one
givenLength = take(binaryMsg, 0, 4)
actualLength = len(binaryMsg) / 4 - 1
print("Length: actual={:02X}, received={:02X}, valid={}".format(
actualLength, givenLength, "yes" if
(givenLength == actualLength) else "no"))
givenCRC = take(binaryMsg, binaryMsg.size - 8, 8)
computedCRC = crc.crc(0x31, 8, 0, 0, binaryMsg[:-8])
print("CRC: computed={:02X}, received={:02X}, valid={}".format(
computedCRC, givenCRC, "yes" if (givenCRC == computedCRC) else "no"))
devID = take(binaryMsg, 4, 6)
print("Device: id={:02X}".format(devID))
newBattery = take(binaryMsg, 10, 1)
weakBattery = take(binaryMsg, 24, 1)
print("Battery: new={}, weak={}".format("yes" if newBattery else "no",
"yes" if weakBattery else "no"))
temperature = (take(binaryMsg, 12, 4) * 10 + take(binaryMsg, 16, 4) +
take(binaryMsg, 20, 4) * .1) - 40
reserved = take(binaryMsg, 11, 1)
print("Reserved 0 bit: received={:01X}, valid={}".format(
reserved, "yes" if (reserved == 0) else "no"))
humidity = take(binaryMsg, 25, 7)
if humidity == 106:
humidity = "N/A"
print("Temperature: {:+0.1f} C -- Humidity: {} %".format(
temperature, humidity))
if givenCRC == computedCRC:
return Report(temperature, humidity, "TX29", devID)
def decode_tx29(binaryMsg):
givenCRC = take(binaryMsg, binaryMsg.size-8, 8)
print "CRC: calculated={0:02X}, received={1:02X}".format(crc.crc(0x31, 8, 0, 0, binaryMsg[:-8]), givenCRC)
temperature = (take(binaryMsg, 12, 4) * 10 + take(binaryMsg, 16, 4) + take(binaryMsg, 20, 4) * .1) - 40
humidity = take(binaryMsg, 24, 8)
if humidity == 106:
humidity = "N/A"
print "Temperature: {0:0.1f} C -- Humidity: {1} %".format(temperature, humidity)
def decode_tx29(binaryMsg):
givenCRC = take(binaryMsg, binaryMsg.size - 8, 8)
print "CRC: calculated={0:02X}, received={1:02X}".format(
crc.crc(0x31, 8, 0, 0, binaryMsg[:-8]), givenCRC)
temperature = (take(binaryMsg, 12, 4) * 10 + take(binaryMsg, 16, 4) +
take(binaryMsg, 20, 4) * .1) - 40
humidity = take(binaryMsg, 24, 8)
if humidity == 106:
humidity = "N/A"
print "Temperature: {0:0.1f} C -- Humidity: {1} %".format(
temperature, humidity)
def process_sdc_group(self, data):
print("************************************************************")
print("SDC ENTRY GROUP: total {0} bits ({1} bytes)".format(data.size, data.size/8))
given_crc = self.take(data, data.size-16, 16)
data = data[:data.size-16]
print "\tCRC: calc={0:04X}, given={1:04X}".format(crc.crc(0b0001000000100001, 16, 0xFFFF, 0xFFFF, data), given_crc)
print("************************************************************")
cont = True
while cont:
pos = self.process_sdc_entry(data)
if pos < data.size:
data = data[pos:]
else:
cont = 0