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Old 26-03-2020, 08:09   #1
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New OpenPlotter/PyPilot build

Hi All,
I've been researching this for a while and I've started acquiring parts for the build. I'm using an old Autohelm 800 for the ram and arduino uno (as I have them in bulk) as the motor controller with a pololu 18v15 doing the driving in servo mode. It'll be set up with a shunt looking at the voltage/current to sense the end stops.

The main confusion is I'm building an rpi4 openplotter system using the motissier hat 2. my understanding is that this has pypilot on it, do I need a second dedicated pizero as well or will running the serial lines a few meters from the openplotter straight to the arduino be fine with the hat supplying the IMU data?

so it'd be openplotter/pilot -> USBserial -> Arduino is that right?

Thanks all,
Stay safe
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Old 26-03-2020, 16:44   #2
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Re: New OpenPlotter/PyPilot build

First, openplotter and pypilot have a separate forum:
OpenMarine - General discussion


To answer your question, yes both ways are possible and you can use an extension cable from raspberry to arduino plenty of meters long.


It is recommended to use the hardware serial of the raspberry available on the moitessier hat header as well rather than usb serial for latency, reliability and isolation reasons, but you can have success using usb serial as well.
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