In this video, I am using a UMI, a sonar for altitude, and a wii-remote camera. The wii-remote camera is a very small camera that is included in the wii-remote.
The wii-remote camera gives directly the 2D coordinates of the IR spots in the image. It's interface is I2C. This is really a great sensor!
On my UAV, the wii-remote camera looks under.
I put IR LEDs on the floor.
I have put some lenses on this wii-remote camera, because the field of view was too narrow.
I still plan to make my drone navigate autonomously in an indoor environment, with several IR spots put on the floor.
For french-speeking people, you can see all the work that I have done on this web-site.
I will soon translate it in english.
Do not hesitate to ask me any question about this project.
Leon.
Comments
> Matt said : "This is similar technology used in motion capture systems"
Yes, but this only uses ONE camera, and the camera is ONBOARD. All the computing power is inside the UAV. I really prefer this approach.
I am using a custom hardware, based on an "Embedded Master" (GHI Electronics). Not an "ardupilot".
The wii sensor can be interfaced quite easily. The interface is I2C (slave of course) and power supply is 3.3V. I think that the I2C interface is NOT 5V tolerant. It also requires a "clock" signal at 25Mhz, and a "reset signal".
The camera can detect up to 4 IR spots at the same time, and can refresh information at 200Hz!
I found information about this sensor on the folowing web sites:
http://wiki.wiimoteproject.com/IR_Sensor
http://procrastineering.blogspot.com/2008/09/working-with-pixart-ca...
http://www.stephenhobley.com/blog/2009/02/22/pixart-sensor-and-ardu...
I think that with those information, you probably could implement that on the "arducopter".
Leon.
"I imagine many people here will want to learn more about the wii interface."
Oh, absolutely. Talk about precision landings!
Very nice work! I imagine many people here will want to learn more about the wii interface.
great stuff. Could you post more information (or the code) you used to communciated with the wii remote's camera? Maybe you could also say what pins do what? Is it 3.3v or 5v?
the camera must have a little cpu on the back which is doing the image processing...I wonder what it uses.
again, great stuff. Looking at your website you've got a nice custom board there.
This is similar technology used in motion capture systems. Congrats
I forgot the scheme for better understanding:
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