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Author Topic: robot airsoft  (Read 8853 times)

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Offline airman00

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Re: robot airsoft
« Reply #30 on: January 13, 2008, 05:05:25 PM »
actually i think you can do body heat tracking with PIR sensors IF they have the correct lense ( not the Fresnel lense they have now)

google Fresnel lense to read about it


if i can get free samples of PIR sensors tell me where, and i will do tests. It is possible!
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Offline the609bluesTopic starter

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Re: robot airsoft
« Reply #31 on: January 13, 2008, 05:33:31 PM »
what about the  pir on http://www.futurlec.com/PIR_Sensors.shtml the second 1 down and using two of them?

Offline airman00

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Re: robot airsoft
« Reply #32 on: January 13, 2008, 05:39:11 PM »
hmmm

the problem is I don't know how far the detecting range is, and also im not sure if it can detect human body heat without a fresnel lense


I would get a few of each sensor and try them out. But remember , you need to amplify the signal from the sensor!
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Offline the609bluesTopic starter

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Re: robot airsoft
« Reply #33 on: January 13, 2008, 05:43:19 PM »
i found this gun http://www.hobbytron.com/GreenGasAirsoftPistolSilencerSilverBladeTrinityStyleGGHGX107NS.html how large of a servo do you think i will need.

Offline the609bluesTopic starter

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Re: robot airsoft
« Reply #34 on: January 13, 2008, 05:48:50 PM »
the sensor with the fresnel lense on that page says it is better for human body heat tracking.

Offline airman00

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Check out the Roboduino, Arduino-compatible board!


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Offline cooldog

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Re: robot airsoft
« Reply #36 on: January 13, 2008, 05:50:56 PM »
hs-311 servo
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Offline the609bluesTopic starter

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Re: robot airsoft
« Reply #37 on: January 13, 2008, 05:55:27 PM »
whats wrong with a gas gun also i found this link which was kind of helpful.
i think i might use the 2 of the 6.90 one from futurlec and put a wall between them.
what are your thoughts

Offline the609bluesTopic starter

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Re: robot airsoft
« Reply #38 on: January 13, 2008, 05:57:09 PM »

Offline airman00

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Re: robot airsoft
« Reply #39 on: January 13, 2008, 06:12:22 PM »
the sensor with the fresnel lense on that page says it is better for human body heat tracking.

Interesting ,  though i think that because of the fresnel lense it gets spread apart,

ill do some more research now
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Offline airman00

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Re: robot airsoft
« Reply #40 on: January 13, 2008, 06:16:07 PM »
yea that gun is  fine , though it can only hold 14 bullets in its magazine, you might need to make it a bullet hopper

electric is the best since there is a motor in there, so you would just switch the motor on with a MCU and override the whole trigger

i would get a servo with at least  55 oz of torque , just in case , since you'll prob add on more stuff to pan later

this servo is perfect and probably has more than enough torque  http://www.servocity.com/html/hs-475hb_super_pro_bb.html



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Offline the609bluesTopic starter

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Re: robot airsoft
« Reply #41 on: January 15, 2008, 03:43:31 PM »
I think the Fresnel lens will work as long as i put a small wall between the two sensors. I have 2 more questions how do i control the guns motor with the micro controller and will the recommended servo be fast enough to follow a human.

Offline airman00

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Re: robot airsoft
« Reply #42 on: January 15, 2008, 04:38:42 PM »
umm figure out the speed you need to follow a human first, then check to see how fast the robot can rotate

in the electric airsoft gun there is a motor. So get a transistor or an H bridge and have the microcontroller switch the transistor which will turn on the motor. THen have it go for like a second at a time for individual shots, etc....
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Offline Admin

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Re: robot airsoft
« Reply #43 on: January 20, 2008, 08:37:22 PM »
I don't see you doing this without a camera . . .

Also consider the CMUcam or AVRcam.

Offline GUmeR

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Re: robot airsoft
« Reply #44 on: January 24, 2008, 09:51:24 PM »
They got something like this:

[youtube]http://www.youtube.com/watch?v=Al-4_1kUBLc[/youtube]

 


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