Hardware device

The Calypso UP10 ultrasonic portable solar wind meter is a Bluetooth, solar-powered, pocket-sized, ultrasonic anemometer. No power cords or data wires needed.

Pictures:

Resources:

• Product page

• Data sheet

• Instruction’s manual

• User manual

• Developer manual

Software library

The device driver library is written in Python, based on the Bleak library. It was verified to work well on an OpenPlotter installation on a Raspberry Pi, as well as a macOS workstation.

Command line

Discover the ULTRASONIC BLE device and run a conversation on it. By default, the Bluetooth adapter hci0 will be used.

# Get device information with discovery.
calypso-anemometer info

# Get device reading.
calypso-anemometer read

# Get device reading, with compass (roll, pitch, heading).
calypso-anemometer read --compass=on

# Get device readings, continuously at 4 Hz (default).
calypso-anemometer read --subscribe

# Get device readings, continuously at 1 Hz.
calypso-anemometer read --subscribe --rate=hz_1

# Generate fake device readings, continuously at 8 Hz.
pip install --upgrade calypso-anemometer[fake]
calypso-anemometer fake --subscribe --rate=hz_8

If you already discovered your device, know its address, and want to connect directly without automatic device discovery, see skip discovery.

Likewise, when your system has multiple Bluetooth adapters, you may want to choose a specific one, see select Bluetooth adapter.

# Get device information w/o discovery.
calypso-anemometer info --ble-address=F8:C7:2C:EC:13:D0

# Get device information w/o discovery, using a specific Bluetooth adapter.
calypso-anemometer info --ble-adapter=hci1 --ble-address=F8:C7:2C:EC:13:D0

Library

In order to use the library API, please consult the programs in the examples folder.

Synopsis:

from calypso_anemometer.core import CalypsoDeviceApi

async with CalypsoDeviceApi() as calypso:
    reading = await calypso.get_reading()
    reading.print()

SignalK telemetry

Continuously receive device readings and submit them in SignalK Delta Format via UDP:

calypso-anemometer read --subscribe --rate=hz_1 --target=udp+signalk+delta://openplotter.local:4123

To make a SignalK server receive the data, create an “UDP receiver” data connection on the Server » Data Connections dialog of your OpenPlotter instance.

NMEA-0183 telemetry

Continuously receive device readings and submit them in NMEA-0183 format via UDP broadcast:

calypso-anemometer read --subscribe --rate=hz_1 --target=udp+broadcast+nmea0183://255.255.255.255:10110

To make OpenCPN receive the data, create a corresponding data connection like outlined in those screenshots.

An example NMEA-0183 payload, including multiple sentences, is:

$MLHDT,235.0,T*27
$MLVWR,154.0,L,11.06,N,5.69,M,20.48,K*64
$MLXDR,A,-60.0,D,PTCH#CAL,A,30.0,D,ROLL#CAL*75
$MLXDR,C,33.0,C,AIRTEMP#CAL*6A
$MLXDR,L,0.9,R,BATT#CAL*18

Contributions

Every kind of contribution, feedback, or patch, is much welcome. Create an issue or submit a patch if you think we should include a new feature, or to report or fix a bug.

Development

In order to setup a development environment on your workstation, please head over to the development sandbox documentation. When you see the software tests succeed, you should be ready to start hacking.

Resources

• Source code repository

• Documentation

• Python Package Index (PyPI)

License

The project is licensed under the terms of the GNU AGPL license, see LICENSE.

Warranty and liability

There is no warranty for the program. In no event will any copyright holder, or any other party who modifies and/or conveys the program, be liable for any damages arising out of the use or inability to use the program.

See also sections 15, 16, and 17 of the LICENSE file.