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Re: [Paparazzi-devel] interfacing with Lisa/M v2 in flight

From: Chris Gough
Subject: Re: [Paparazzi-devel] interfacing with Lisa/M v2 in flight
Date: Mon, 26 Aug 2013 14:20:25 +1000

> Is there a way to connect a Raspberry Pie to the Lisa/M v2 board so I can 
> dynamically change the flightplan based on a program I write on the Raspberry 
> Pie?


> Could I just plug into the onbord USB port and send it MAVLINK commands?

...but using MavLink is not the easy way. I might not be up to date on MavLink 
support, but last time I checked it was basically still at "proof of concept" 

Suggest you look at connecting the lisa's modem UART to an FTDI adapter (or 
similar) on the Rpi's USB, then write a python ivy agent to direct the flight 
plan. You could use the UART on the Rpi's breakout header too (I usually keep 
that spare for serial connection on the bench)

Example code:

Basically, as far as the autopilot is concerned, the Rpi is the ground station. 
You might like to snoop on interaction between the usual GCS program and 
autopilot (in sim), then replicate simple interactions with scripts and build 
up from there. 

Of course you don't have to use python, other languages are supported too.

Chris Gough

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