I always thought one of those Stanley FatMax laser measuring tapes would be
a good candidate to hack up. They use a laser instead of the ultrasonic
pulse that most electronic measures use, and they are only $100. I think it
would be hard to poke around and find a signal or bus that a processor could
interpret, though. My guess is that the whole thing is integrated onto a
single chip and may not even expose an output other than the LED driver. I
guess you could interface to that, but what a pain.
- Doug
-----Original Message-----
From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com]
On Behalf Of HV
Sent: Wednesday, May 20, 2009 6:53 PM
To: R/C Tank Combat
Subject: [TANKS] Re: target tracking
A personal radar would be nice for camping trips in grizzly
territory :)
I think over the years there were a lot of mini radars developed for
the automotive applications - automatic braking and related. I think
one new model car has this feature, but most of these efforts never
got beyond the prototype stage. This kind of radar is typically a
millimeter wave, frequency modulated, continuous wave radar, such as
can be found at:
http://www.ducommun.com/ww_subsystems.html
Don't know what they cost, but they look military-ish, and expensive.
I think it wouldn't be too difficult to modify a Doppler radar, such
as a cheap baseball speed gun, with a sawtooth frequency modulation to
measure range.
However, if I were going to do radar, I would rather use a laser
rangefinder, like the Bushnell sports rangefinders. The standard ones
are cheap, but they don't have a computer interface. You could either
hack the innards or buy a more expensive version that has an RS232
interface. These have plenty of range.
Here is a link for some other sensors for robotics, including scanning
laser rangefinders and 3D flash laser cameras. Very expensive.
http://www.acroname.com/robotics/parts/c_Sensors.html
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