eCompass and temperature not working

[amotl]

Hi there,

at GH-12, we were aiming to unlock eCompass readings. However, @UserMacUseface, and @honigwald ¹ both reported that compass- and temperature readings do not work yet with the recent 0.6.0 release. Bummer.

Nevertheless the eCompass (Yaw/Heading, Pitch, Roll) and the Temperature don't provide any readings.

With kind regards,
Andreas.

Footnotes

1. https://github.com/maritime-labs/calypso-anemometer/issues/14#issuecomment-1445030260 ↩

[amotl]

Together with @UserMacUseface, we are also wondering why it would not work yet. I think I did not use the eCompass yet when conceiving this library, but I am almost sure I received valid readings for temperature and battery level in the past.

May I ask more details about your device? When did you buy it? Which firmware version does it run? Did you upgrade the firmware once already, or is it a vanilla device? Does it work when using the accompanying smartphone app?

P.S.: Same questions to you, @UserMacUseface. Thank you already!

[amotl]

Can I ask you both to invoke the program with the --debug option? Then, you should see corresponding debug output from the decode_reading() method, effectively Received buffer: and Decoded reading:. It probably will not lead anywhere, nevertheless I wanted to tell you about it.

calypso-anemometer/calypso_anemometer/core.py

Lines 245 to 255 in 1067532

	@staticmethod
	def decode_reading(data: bytearray, sender: Optional[int] = None):
	logger.debug(f"Received buffer: {data}")
	try:
	reading = CalypsoReading.from_buffer(data)
	except Exception as ex:
	msg = f"Decoding reading failed. Reason: {ex}. Data: {data}"
	logger.exception(msg)
	raise CalypsoDecodingError(msg) from None
	logger.debug(f"Decoded reading: {reading}")
	return reading

calypso-anemometer --debug info
calypso-anemometer --debug read
calypso-anemometer --debug explore

[honigwald]

I bought my Calypso (the one you can see in picture of the README file here) recently.
Here are the information's from Calypso App:

Manufacturer Name: CALYPSO
Model Number: POR
Hardware Version: 3.0
Firmware Version: 2.18
Software Version: 1.41C   # Added from debug output

I didn't executed a FW-Upgrade yet.

[honigwald]

Can I ask you both to invoke the program with the --debug option? Then, you should see corresponding debug output from the decode_reading() method, effectively Received buffer: and Decoded reading:. It probably will not lead anywhere, nevertheless I wanted to tell you about it.

calypso-anemometer --debug info
calypso-anemometer --debug read
calypso-anemometer --debug explore

Will check the outcome later, since I've to leave it for today as it is but I attached the debug logs. :)

calypso_explore_debug.txt
calypso_info_debug.txt
calypso_read_debug.txt

[amotl]

Thank you very much. It may make sense to add the --compass=on option as well to the read command, like

calypso-anemometer --debug read --compass=on

Sorry for missing this.

[amotl]

info

From the info debug output, I can see the eCompass should be turned on. The response bytes for (mode, rate, compass) status are (\x02, \x01, \x01), translating to (CalypsoDeviceMode.NORMAL, CalypsoDeviceDataRate.HZ_1, CalypsoDeviceCompassStatus.ON).

Those lines within the explore output also indicate that the eCompass is turned on.

Found characteristic: 0000a003-0000-1000-8000-00805f9b34fb (Handle: 58): Vendor specific. 
Value: b'\x01'
  Found descriptor: 00002901-0000-1000-8000-00805f9b34fb (Handle: 60): Characteristic User Description
  Value: b'Activate clinometer and eCompass\x00'

read

Within the read output, those are the relevant lines where the actual reading at 00002a39-0000-1000-8000-00805f9b34fb is requested.

2023-02-25 09:09:05,651 [bleak.backends.bluezdbus.client] DEBUG   : Read Characteristic 00002a39-0000-1000-8000-00805f9b34fb | /org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030: bytearray(b'\x00\x00\x00\x00\nd\x00\x00\x00\x00')
2023-02-25 09:09:05,652 [calypso_anemometer.core  ] DEBUG   : Received buffer:  bytearray(b'\x00\x00\x00\x00\nd\x00\x00\x00\x00')
2023-02-25 09:09:05,653 [calypso_anemometer.core  ] DEBUG   : Decoded reading: CalypsoReading(wind_speed=0.0, wind_direction=0, battery_level=100, temperature=0, roll=-90, pitch=-90, heading=360)

\x00\x00\x00\x00\nd\x00\x00\x00\x00 does not yield much information, right?

explore

Last but not least, this is the corresponding conversation about the reading from the explore output. Here, the 10 byte reading response \x00\x00T\x00\nd\x00\x00\x00\x00 is equally thin as seen before.

2023-02-25 09:08:34,172 [calypso_anemometer.core  ] INFO    :   Found characteristic: 00002a39-0000-1000-8000-00805f9b34fb (Handle: 48): Heart Rate Control Point. properties=read,notify
2023-02-25 09:08:34,256 [bleak.backends.bluezdbus.manager] DEBUG   : received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x00\x00T\x00\nd\x00\x00\x00\x00'))>}, []]
2023-02-25 09:08:34,259 [bleak.backends.bluezdbus.client] DEBUG   : Read Characteristic 00002a39-0000-1000-8000-00805f9b34fb | /org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030: bytearray(b'\x00\x00T\x00\nd\x00\x00\x00\x00')
2023-02-25 09:08:34,260 [calypso_anemometer.core  ] INFO    :   Value: b'\x00\x00T\x00\nd\x00\x00\x00\x00'
2023-02-25 09:08:34,261 [calypso_anemometer.core  ] INFO    :     Found descriptor: 00002901-0000-1000-8000-00805f9b34fb (Handle: 51): Characteristic User Description
2023-02-25 09:08:34,346 [bleak.backends.bluezdbus.manager] DEBUG   : received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030/desc0033): ['org.bluez.GattDescriptor1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'Principal\x00'))>}, []]
2023-02-25 09:08:34,350 [bleak.backends.bluezdbus.client] DEBUG   : Read Descriptor 51 | /org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030/desc0033: bytearray(b'Principal\x00')
2023-02-25 09:08:34,351 [calypso_anemometer.core  ] INFO    :     Value: b'Principal\x00'
2023-02-25 09:08:34,352 [calypso_anemometer.core  ] INFO    :     Found descriptor: 00002902-0000-1000-8000-00805f9b34fb (Handle: 50): Client Characteristic Configuration
2023-02-25 09:08:34,439 [bleak.backends.bluezdbus.manager] DEBUG   : received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030/desc0032): ['org.bluez.GattDescriptor1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x00\x00'))>}, []]
2023-02-25 09:08:34,442 [bleak.backends.bluezdbus.client] DEBUG   : Read Descriptor 50 | /org/bluez/hci0/dev_C7_4B_1B_80_61_92/service002f/char0030/desc0032: bytearray(b'\x00\x00')
2023-02-25 09:08:34,444 [calypso_anemometer.core  ] INFO    :     Value: b'\x00\x00'

[amotl]

Just to make sure: We do not see a regression here, do we? So, version 0.5.1 displays the same output? It can be installed using pip install calypso-anemometer==0.5.1.

^^ Edit: Probably not relevant, as the reading seem to be conducted properly, but \x00\x00\x00\x00\nd\x00\x00\x00\x00 clearly indicates that there is "not much to see here".

[amotl]

Better question:

Does it actually work, and yield valid readings, when using the accompanying smartphone app?

[amotl]

For custom BLE conversations and explorations, I found the nRF Connect for Mobile application (latest apk) very comprehensive and useful when investigating some BLE GATT ESS characteristics the other day ¹. It may also help in this case, in order to have a third BLE client application around, to be able to compare between each other.

Recap:

characteristic uuid	name	description
0000a003-0000-1000-8000-00805f9b34fb	Activate clinometer and eCompass	0x00 or 0x01, whether the compass is enabled or not.
00002a39-0000-1000-8000-00805f9b34fb	Heart Rate Control Point	The actual reading, a 10 bytes response, decoded with CalypsoReading.from_buffer().

The application is also displayed within the Calypso Ultrasonic developer manual.

Footnotes

1. https://community.hiveeyes.org/t/implementing-ble-gatt-ess-characteristics-with-micropython/2413 ↩

[UserMacUseface]

Can I ask you both to invoke the program with the --debug option? Then, you should see corresponding debug output from the decode_reading() method, effectively Received buffer: and Decoded reading:. It probably will not lead anywhere, nevertheless I wanted to tell you about it.

calypso-anemometer/calypso_anemometer/core.py

Lines 245 to 255 in 1067532

	@staticmethod
	def decode_reading(data: bytearray, sender: Optional[int] = None):
	logger.debug(f"Received buffer: {data}")
	try:
	reading = CalypsoReading.from_buffer(data)
	except Exception as ex:
	msg = f"Decoding reading failed. Reason: {ex}. Data: {data}"
	logger.exception(msg)
	raise CalypsoDecodingError(msg) from None
	logger.debug(f"Decoded reading: {reading}")
	return reading

calypso-anemometer --debug info
calypso-anemometer --debug read
calypso-anemometer --debug explore

Here we are from my side:
debug_info.txt
debug_read.txt
debug_explore.txt

[UserMacUseface]

Thank you very much. It may make sense to add the --compass=on option as well to the read command, like

calypso-anemometer --debug read --compass=on

Sorry for missing this.

Here with compass:
debug_read_w_compass.txt

[UserMacUseface]

I bought my Calypso (the one you can see in picture of the README file here) recently. Here are the information's from Calypso App:

Manufacturer Name: CALYPSO
Model Number: POR
Hardware Version: 3.0
Firmware Version: 2.18
Software Version: 1.41C   # Added from debug output

I didn't executed a FW-Upgrade yet.

This is the info from my device:

Manufacturer Name: CALYPSO
Model Number: POR
Hardware Version: 2.50
Firmware Version: 2.20
Software Version: 1.30S

I did recently run a firmware upgrade.

[amotl]

@UserMacUseface: Thanks for sharing your debug logs. Your reading \x00\x00\x00\x00\td\x00\x00\x00\x00 also looks a bit thin? Don't you currently have any wind at your masttop?

read

2023-02-25 11:38:16,544 [calypso_anemometer.core  ] INFO    : Requesting reading
2023-02-25 11:38:17,012 [bleak.backends.bluezdbus.manager] DEBUG   : received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_CD_5D_43_7F_AD_75/service002f/char0030): ['org.bluez.GattCharacteristic1', {'Value': <dbus_next.signature.Variant ('ay', b'\x00\x00\x00\x00\td\x00\x00\x00\x00')>}, []]
2023-02-25 11:38:17,013 [bleak.backends.bluezdbus.client] DEBUG   : Read Characteristic 00002a39-0000-1000-8000-00805f9b34fb | /org/bluez/hci0/dev_CD_5D_43_7F_AD_75/service002f/char0030: bytearray(b'\x00\x00\x00\x00\td\x00\x00\x00\x00')
2023-02-25 11:38:17,013 [calypso_anemometer.core  ] DEBUG   : Received buffer:  bytearray(b'\x00\x00\x00\x00\td\x00\x00\x00\x00')
2023-02-25 11:38:17,014 [calypso_anemometer.core  ] DEBUG   : Decoded reading: CalypsoReading(wind_speed=0.0, wind_direction=0, battery_level=90, temperature=0, roll=-90, pitch=-90, heading=360)

explore

2023-02-25 11:39:34,117 [calypso_anemometer.core  ] INFO    : Found service: 0000180d-0000-1000-8000-00805f9b34fb (Handle: 47): Heart Rate
2023-02-25 11:39:34,117 [calypso_anemometer.core  ] INFO    :   Found characteristic: 00002a39-0000-1000-8000-00805f9b34fb (Handle: 48): Heart Rate Control Point. properties=read,notify
2023-02-25 11:39:34,213 [bleak.backends.bluezdbus.manager] DEBUG   : received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_CD_5D_43_7F_AD_75/service002f/char0030): ['org.bluez.GattCharacteristic1', {'Value': <dbus_next.signature.Variant ('ay', b'\x00\x00\x00\x00\td\x00\x00\x00\x00')>}, []]
2023-02-25 11:39:34,216 [bleak.backends.bluezdbus.client] DEBUG   : Read Characteristic 00002a39-0000-1000-8000-00805f9b34fb | /org/bluez/hci0/dev_CD_5D_43_7F_AD_75/service002f/char0030: bytearray(b'\x00\x00\x00\x00\td\x00\x00\x00\x00')
2023-02-25 11:39:34,217 [calypso_anemometer.core  ] INFO    :   Value: b'\x00\x00\x00\x00\td\x00\x00\x00\x00'