This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Recommended hardware
#1
Question 
Hiu All,

I am trying (and failing) to build a replacement system for the now obsolete Moitessier HAT.

The only sensor I have working properly is the AdaFruit Ultimate GPS.

I have a MPU9255 MPU-9255 3-Axial Accelerometer + Gyroscope + Magnetometer GY-9255 which does not give me data (separate thread on this forum)

I also have a DVB-T + FM + DAB that may, or may not be working. I have no antenna and am too far away from AIS targets anyway to test properly- but I am getting 0 (NaN %) communication from the device in SignalK. I did follow the documentation, and get a green, active and running openplotter-rtl_ais process, but nothing in SignalK.

It could very well be I have all the wrong hardware, there's a lot on offer, and differences between sensors are, at least to me, not always obvious.

So PLEASE, can someone knowledgeable make a list of reccommended hardware for use with an OpenPlotter (Pi) installation? Maybe even with a link to wiring / installing / debugging? 
Sad to say that I am now seriously looking at alternatives..

Thank you for your support!

Now looking at https://www.exp-tech.de/en/sensors/accel...ed-compass for a compass- anyone already using it?
Reply
#2
you will not get data in Signal k without antenna and AIS targets.
that SDR device will work but it needs calibration

that compass is based on the BNO055 and it will not work properly
Reply
#3
(2021-05-05, 05:55 PM)Sailoog Wrote: you will not get data in Signal k without antenna and AIS targets.
that SDR device will work but it needs calibration

that compass is based on the BNO055 and it will not work properly

Hi Sailoog,

Thanks for your reply. 
For compasses I now understand the MPU-9255 is the recommended sensor. Did not know the BNO055 will not work (shame as it seems to be the only one that is tilt-corrected out of the box..?..) 

The broader question is if there is a list of either supported, or unsupported sensors? That might prevent much frustration, at least for some..  Confused

Thanks again!
Reply
#4
(2021-05-06, 08:28 AM)fishy Wrote: The broader question is if there is a list of either supported, or unsupported sensors? That might prevent much frustration, at least for some..  Confused

Thanks again!

Sailoog is pretty much single handedly developing this platform and, I believe, it is up to the userbase to help out where they can and with most people not being coders, documentation is where this could be beneficial.  If every user added a link to hardware that worked on the appropriate page then we would have the list you are referring to.  

Take a look at the CAN page I created https://openplotter.readthedocs.io/en/la...n_app.html - I call out the board I used and have structured it so others can add theirs.  

this isn't really a message for you (as a new user) but if anyone else has known good hardware and wants to add it, send me a message and I will update the docs
Reply
#5
(2021-05-06, 02:57 PM)Techstyle Wrote: Sailoog is pretty much single handedly developing this platform and, I believe, it is up to the userbase to help out where they can and with most people not being coders, documentation is where this could be beneficial.  If every user added a link to hardware that worked on the appropriate page then we would have the list you are referring to.  

Take a look at the CAN page I created https://openplotter.readthedocs.io/en/la...n_app.html - I call out the board I used and have structured it so others can add theirs.  

this isn't really a message for you (as a new user) but if anyone else has known good hardware and wants to add it, send me a message and I will update the docs

Hi Techstyle,

I realize the workload Sailoog (must be) under- my question was not aimed at him, per sé. (although I certainly do not mind him answering)
I have read many individual posts, some are helpful in suggesting functioning hardware, others are confusing or only partly answering.

I was hoping we, as uses, could create a simple list of hardware that works (proven) or does definitely not work. Preferably without discussion.

So: For Compass:

Magnetic sensors

BNO055 - Does not work
MPU9255 - Works (recommended)
MPU9250 - Works (replaced by 9255)
LSM303DLHC - Unknown
HMC5883L - Unknown

... Please add  Big Grin
Reply
#6
This is the list of supported iMUs: https://github.com/openplotter/RTIMULib2
support for the new ICM-20948 will be added soon and it seems that Sean is working on ISM330DHCX + LIS3MDL too

I think you are right, we need a list of supported hardware with links to reliable providers and link to the section in docs where you can find instructions for connecting and configuring. We had something similar in the past and it worked. Let me think the best place in the current docs to put this.
Reply
#7
Here we go: https://openplotter.readthedocs.io/en/la..._need.html

Any link for reliable RS422 converters providers?
Reply
#8
(2021-05-10, 07:45 PM)Sailoog Wrote: Any link for reliable RS422 converters providers?

@Sailoog,

I use DTECH USB to RS422

the Page looks great!
Reply
#9
Added rs422 and can: https://openplotter.readthedocs.io/en/la..._need.html

thanks!
Reply
#10
(2021-05-11, 08:59 PM)Sailoog Wrote: Added rs422 and can: https://openplotter.readthedocs.io/en/la..._need.html

thanks!

the Can bus HAT I have used is: it works great and is called out on the Can bus page (MCP2515), however, it is not isolated.  waveshare does do a 2-channel isolated one but I have not tested it, it is likely to work though as it is the same chip: for Seatalk 1 adapter I have used: I swapped out the 4.7K resistor on the input side for a 10K resistor
I was going to create a page explaining configuration of this for the manual - I have it drafted (mainly so I remember!)

dAISy AIS receivers (https://shop.wegmatt.com/) could be added as well, the daisy 2+ worked fine when I tested it
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)