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Harry
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Harry's Discussions
A little confused....
Replied Oct. 13, 2009
Optical stabilization
Replied Jun. 17, 2009
Optical stabilization
Replied May. 30, 2009
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"Use the at168 pins"... hmmm, that would be to load the bootloader? Just slide the AVRISP mkII connector over to the next 6 pins, same orientation? The red stripe closest to the Attiny side?
In either case, I have big problems now with the USB/Seri…
I believe my 328 based ardupilot board(red) needs the boot loader reprogrammed. I say this because it was fine and would load programs, then I let it run for a month and now it wont load new versions and I get the stk500 errors that the manual says…
Does the IMU output need to be translated into something Ardu understands? It took a long time before Ardu was adapted to both NMEA and binary Sirf. I can only imagine the nightmare. Ideas are simple, reality is the beoyotch and I have no choice but…
I havent given up on this, just yet. The current idea is to attach sensors(FETS) to the wing tips and the difference in voltage, due to the gradient of the atmospheric ionization, will indicate attitude. Maynard Hill did it first using a piece of r…
Geeeeeezuz, I did some reading and accelerometers Are used to indicate tilt. I've got a new idea for using the bubbles. There is some sort of gyro that uses a standing wave. As that sensor tilts, the standing wave tilts at a different angle. If I ha…
Well, I think I understand the "bias" I saw with the soap bubbles and that is gravity. As the bubbles and the soap slide down the sides of the bottle(sensor over air space), the motion is detected. Gravity is pretty constant, so that's why the curso…
Lava lamp oil of different colors, or even olive oil and basalmic vinegar maybe. It needs a flat clear surface that's for sure. The backwash of one of those wave devices could throw it off. Some kind of micro ball that floats might do it. As the ves…
Harry,
you ever see one of the oil/water wave machines ? rectangular clear tube with blue oil and water that rocks end to end making wave forms in the tube .
abey,
No more questions on optics from me. I found an achromatic lens to do what I want and when used with an aperature at the focus, you get a telecentric lens. Telecentric lenses dont show perspective.
I've since experimented with a different app…
I'm not sure how to answer your questions. For the lens, you'd have to check the datasheet. As for the USAF test chart, I'm not at all familiar with it.
Avago lists the "field coverage radius" as 1 mm. The datasheet shows this diagram of the lens and the sensor, should I interpret the 1 mm radius as 1/2 of the size of the 16x16 pixel array?
Thanks, is a collimating lens also telecentric?
Also, do you know how to determine the image size shown in this USAF test chart?
We tried two lenses: Philips CAY046 and CAX100, f = 4.6 and 10mm, respectively. They have a FOV between 3 and 6°, so fairly narrow by anyone's standard.
I found the ADNS 2030 on ebay in a working mouse. The ADNK 2030 is the development kit and nobody will sell that for less than 10x the price of a complete mouse - ridiculous. If all you want is the chip, then you have to buy 1000.
Anyway, the optic…
The RoboRealm Skyline module deals with the "false" horizons by building some model that resists spurious changes. They suggest 120 frames for the model to smooth out the noisy bogus horizons. I dont know how they did it or how you should do it, but…
Can you elaborate on the lens? For instance, are you looking for a narrow field of view? Thanks, for anything you can add.
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