Hello dear people of planet sail,
I have not been reading the forum for a while so I missed this thread.
I bought an Calypso Ultrasonic Portable back in 2021 as I liked the idea of a no
cables, no moving
parts device with an open ( Bluetooth LE ) data transfer.
I have been engaged helping with the development of an open source python driver for it that exposes the captured data to either NMEA0183 or signalK protocols.
This
software can be found at:
https://github.com/maritime-labs/calypso-anemometer
Originally there was also a
plugin for signalK but it seems that the development had been abandoned (
https://github.com/decipherindustrie...pso-ultrasonic )
My device started to have some issues with connectivity and performance early on and then stopped working completely.
Unfortunately the manufacturer, Calypso
Instruments needed me to send the defective device via their distributor for warranty exchange which did cost some significant
money back and forth ( half of what the unit costs actually ).
However that might be the issue with any small company.
To me it seems that there was some sealing issue with the
solar panel which probably allowed some moisture in. But this is pure speculation, mind you.
It might just have been a lemon.
My experience with the support of the company in general is a bit en par with what people have been writing here already.
Emails had been unanswered for a long while or with only half thought out responses.
Sometimes referring to older invalid support documents or documents without any relevance to the problem. A bit of the usual "call-center" feeling.
As for the device itself: Originally they marketed the device to have also a gyro and temperature sensor ( the latter not being too important ) with the accompanying settings in their iOS and Android application (
compass calibration, heel,
pitch, etc. )
Also reflected in their Bluetooth LE developer document.
Exposed data was: Wind Speed, Wind Direction,
Battery level, Temp Level, Roll,
Pitch, eCOMPASS
The company has changed this a while ago to: Wind Speed, Wind Direction,
Battery level only, citing the "secondary sensors" are not part of the newer models anymore and have been removed from
marketing material as well "... our units used to have secondary sensors a couple of generations ago, but the models nowadays do not have secondary sensors ..."
The manufacturer does provide a firmware update application but no real changelog info on the updates afaik. Also the firmware update
software seems a bit "wonky" and half baked to me which leaves a bit of an uncertain feeling about such an important procedure.
As the exposed data via the Bluetooth LE protocol is easy to deal with the device seemed to be a good idea for the basis of an open source driver.
Our open source driver works as a standalone software that can easily be integrated if you already use an open computer system on your
boat.
I use a raspberry pi running openplotter with signalK currently as a wireless data broadcaster.
The anemometer data is fed into the NMEA stream, using either a signalK connection when broadcasting the signalK protocol or sending NMEA directly via UDP.
So far I am quite content with the software and we are in advanced beta testing with only minor connectivity issues being ironed out ( as much as this is possible with only the Bluetooth LE connectivity exposed by the manufacturer and the rest of the functionality being a kind of black box )
In general it's hard to say what goes on with the manufacturer and log term support / development. Covid and other issues might play a part so I am not inclined to draw too many conclusions. Compared to experiences with other "open" manufacturers I would say that the developer support leaves something to be desired.
If any of you are interested in testing the driver in their systems, feel free to
head over to the above mentioned github page and play with it. Your feedback might be helpful in finalizing the software.
Mind you, this is not supposed to be a
plug and play for anyone not using something like openplotter or other systems already. In this case the "NMEA connector"
sold by the manufacturer seems to be the better option.
In conclusion:
I do not need an anemometer, I usually judge the wind by my
boats behaviour.
My use scenario therefore is more of a "nice to have" kind of thing
Long term experience and
reliability with the device is still to be determined to judge if it will be usable to other sailors who depend on an anemometer reading.
There used to be another party open source anemometer albeit with moving
parts called openwind but I am not sure if the company still exists. ( their website is not working anymore )
Fair winds!