CAN HAT for RPI4

[Antonio Pezzoni]

Hello everyone,

has anyone tried this card with signal K?

https://www.waveshare.com/rs485-can-hat.htm

Are there step-by-step instructions for installation / configuration?

Thank you!

Toni

[Mark B]

I have just received the 2 channel version, have not had time to try it out.

Mark

[Christopher DuBach]

Antonio, 

Is this HAT optically isolated? Connecting to 2k backbone has 12vdc. What protection is there for back feed voltage spike to protect Rpi?

Chris 

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[Mark B]

Hi Antonio,

This board doesn't appear to be isolated, however the two channel version is.

Mark.

[Christopher DuBach]

Thanks Mark...

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[Antonio Pezzoni]

Hello Mark,

any news about your tests? Form my side, the red hat is correctly connected by the server, but there isn't any way to see any data.

Question: in the Connections - configuration panel, I have to choose the Nmea2000 source from Actisense, iKonvert, canbus etc. What 's the right choice?

Many thanks,

Toni

[Mark Ballard]

Hi Toni,

     I haven't had an opportunity to look at it yet, extremely busy at work.

Mark

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[Antonio Pezzoni]

Hello,

CAN HAT is perfectly running now, very easy to install and configure, at the end.

If someone need, I can publish the steps to do.

Thank you, ciao

[gon...@gmail.com]

Hello, great news, if possible publish the steps, I want to try by myself.

Thanks in avance. Sorry for my english i'm spanish.

[Bradford Harley]

Thanks for the effort to test this.   I would be interested in the steps and the specific can hat you’re using.  

Brad Harley. — Sent from my iPhone

On Aug 22, 2020, at 06:28, gon...@gmail.com <gon...@gmail.com> wrote:



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[Antonio Pezzoni]

Hello Brad,

the CAN-HAT used is this:

https://www.waveshare.com/rs485-can-hat.htm

You find it also on AliExpress. There is also the isolated version:

https://www.waveshare.com/product/raspberry-pi/2-ch-can-hat.htm

I don't know it, but it should be the same, at software level.

Configuration requires 3 steps:

1. add two lines to /boot/config.txt

dtparam=spi=on

dtoverlay=mcp2515-can0,oscillator=12000000,interrupt=25

2. add or edit the file /etc/network/interfaces.d/can0

and copy inside this 3 lines:

auto can0

iface can0 can static

bitrate 250000

3. Go to CanBus panel of OpenPlotter, go to MCP2515 and add Connection.

On SignalK, you will find a new connection with ID can0, Nmea Source canbus(canboatjs) and Interface can0

Both from CANBUS panel or from terminal you can see the traffic. From terminal, the comand is: candump can0

Have Fun!

Toni