Thank you Sailoog for your question. The reason I'm independent is that you need IMUS of good quality. The one we are going to use has 6 axles and compasses with Kalman filter included.
In principle we think that the cable connection with the Raspi, offers more security. Although it could be done by WiFi or RF we leave it to discussion.
Regarding the necessary sentences, there are two questions. One that multiplexes OpenPlotter and the other output OpenCPN
From OpenCPN we need the autopilot sentences in case it is used as Plotter as RMB, WPL, APB, XTE, or repeater as RMC, GGA, GLL, ZDA, VTG...
As OpenCPN generates them in NMEA183, to avoid delays with conversions, we could read them directly in NMEA183.
Those of OpenPlotter, especially the ones of wind and speed on the bottom we could read them with NMEA183 or N2K. If OpenPlotter is connected to a GPS, we could also read these sentences and choose which of the two has better quality to use one or another. In discussion it is left if there would be to read other data. We are open to suggestions.
As soon as we prove what happens with signalK, if the processing speed is not compromised, also signal K
If you want the autopilot settings to be made from OpenPlotter and/or from OpenCPN, you will have to develop a plugin either for OpenPlotter or for OpenCPN or both.
I think I told you that we had this project in mind and that we were counting on you, especially regarding OpenPlotter.
I have checked again the characteristics of the IMU that we are going to use and I have to correct myself.
The IMU is the BNO055 of 9 axes, magnetometer, Gyro and accelerometer.
In principle we think that the cable connection with the Raspi, offers more security. Although it could be done by WiFi or RF we leave it to discussion.
Regarding the necessary sentences, there are two questions. One that multiplexes OpenPlotter and the other output OpenCPN
From OpenCPN we need the autopilot sentences in case it is used as Plotter as RMB, WPL, APB, XTE, or repeater as RMC, GGA, GLL, ZDA, VTG...
As OpenCPN generates them in NMEA183, to avoid delays with conversions, we could read them directly in NMEA183.
Those of OpenPlotter, especially the ones of wind and speed on the bottom we could read them with NMEA183 or N2K. If OpenPlotter is connected to a GPS, we could also read these sentences and choose which of the two has better quality to use one or another. In discussion it is left if there would be to read other data. We are open to suggestions.
As soon as we prove what happens with signalK, if the processing speed is not compromised, also signal K
If you want the autopilot settings to be made from OpenPlotter and/or from OpenCPN, you will have to develop a plugin either for OpenPlotter or for OpenCPN or both.
I think I told you that we had this project in mind and that we were counting on you, especially regarding OpenPlotter.
(2019-03-17, 02:57 PM)Sailoog Wrote: That sounds promising.
If I have understood, it will be an standalone device. How do you plan to connect/communicate with openplotter and what data do you need to exchange?
I have checked again the characteristics of the IMU that we are going to use and I have to correct myself.
The IMU is the BNO055 of 9 axes, magnetometer, Gyro and accelerometer.