robot airsoft

[airman00]

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!

[the609blues]

what about the  pir on http://www.futurlec.com/PIR_Sensors.shtml the second 1 down and using two of them?

[airman00]

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!

[the609blues]

i found this gun http://www.hobbytron.com/GreenGasAirsoftPistolSilencerSilverBladeTrinityStyleGGHGX107NS.html how large of a servo do you think i will need.

[the609blues]

the sensor with the fresnel lense on that page says it is better for human body heat tracking.

[airman00]

thats a gas airsoft gun


find an electric one , i would get semiautomatic one


this project is very interesting

feel free to email me about it at anytime  ( [nospam] [email protected])    remove nospam from the email, dam spam bots

[cooldog]

hs-311 servo

[the609blues]

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

[the609blues]

what about this gun http://www.hobbytron.com/ElectricJamesBondAirsoftGunBC2030B.html

[airman00]

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

[airman00]

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

[the609blues]

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.

[airman00]

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....

[Admin]

I don't see you doing this without a camera . . .

Also consider the CMUcam or AVRcam.

[GUmeR]

They got something like this:

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