A discussion page to allow me to add my experiences using a Raspberry Pi 2/3/Zero V1.2/1.3 as a companion computer for Ardupilot/APM/Pixhawk flight boards. I will update my experiences as I learn, feel free to comment and offer tips, it's all free here.
I'm building a github for my experiments: https://github.com/benb0jangles/Companion-Pi
Drone Unit: Raspberry Pi Zero V1.3 + Pi Camera Module
img file: https://drive.google.com/open?id=0B1cVb3uX0f0dQTZzSmVISFdYd3M
Ground Unit: Raspberry Pi 2
img file: <to be added>
Goggles Unit: Raspberry Pi Zero V1.3
img file: https://drive.google.com/open?id=0B1cVb3uX0f0dakFpaTAyVF9HV2s
Ardupilot Technical Questions:
Also, if you have any technical code/hardware questions which you feel may take ongoing contributions and help over an extended timeframe, feel free to ask over on Ardupilot.org technical discussion page here: http://discuss.ardupilot.org/t/companion-pi-2-3-zero/9460
I will update as I get by, please contribute by offering your 'plug & play' wifi adapters using Raspbian Jessie. Also, if you happen to pick up this project, and are working faster than me, then please send us your own .img file experiments. Thanks.
Replies
Patrick, you will have to double that (one set tx, one set rx, less the picam for rx)
Thanks, I am also interested in the new pi sony sensor, how it works, improvements etc. Seems lots of companies are emerging with Digital fpv but at extreme pricing (of course, I think anyone is allowed to price however they want, this is freedom and democracy :) )
I think that just 2 raspberry or similar with picamera with 3d party lens
@letiidronletii
Looks like a RPI with a high-power wifi adapter in a case. They are charging 600 euros for a setup that cost about 100 to build.
dual streams on the way:
see my github:
https://github.com/benb0jangles/Companion-Pi2/blob/master/README.md
Thought I would post a pic of my companion PI Quad with a high-power WiFi adapter on this thread:
http://www.thingiverse.com/thing:1126548
This setup, with a tracker can stream full HD over many miles of range. I don't use wifi broadcast, but ordinary UDP, for both video and telemetery.
hello patrick thanks for linking, it's been something in my thoughts to try to adapt the pi camera for gimbal use like you've done; I was thinking about a foam gopro dummy and adding coins or weights to it to make it balance or something.
UDP is interesting me a lot lately. I looked into DJi Lightbridge and assumed that they are using UDP too, but it seems they are using an adapted version to include error correction/skipping/re connection. The problem with UDP is once you cross the boundary there is no reconnect although i'm sure a ground station could be configured to reconnect every x-seconds until connected?
There is more info on Lightbridge & UDP/UDT here:
http://www.phantompilots.com/threads/accessing-the-p2-wifi-repeater...
http://www.phantompilots.com/threads/what-purpose-does-the-dji-fed-...
http://www.phantompilots.com/threads/accessing-the-p2-wifi-repeater...
@ben
The gimbals mount for the PI cam is a 3-d printed shell that is the same size of a go-pro, with less weight of course. You need an extended ribbon cable which I purchased from ebay. You still need a bit of weight to make it work, and I had to adjust the PIDs on the gimbals to keep it from oscillating, but it ended up working great.
Here's a link to a video I make with the setup. https://www.youtube.com/watch?v=UNXysQH767s
I am working on a new quad (DJI Inspire 3-d printed), where I am trying a similar setup.
you should really checkout the already existing solution for HD FPV with a Raspberry Pi:
https://befinitiv.wordpress.com/wifibroadcast-analog-like-transmiss...
All other methods are just subpar....
Thanks, but befinitiv is just using gstreamer for video which everybody knows how to do in 2016.
what we are doing here is creating video + data :)
Maybe you would like to contribute to the open project?
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