Re: 1/6th RC Stuart drive electronics figured out

[ray.schwartz-at-juno.com]

ted , 
i love your web site , the neuport project is too cool , i won a flight
with the red barron pizza stunt team a few years ago , that was one of
the coolest things i
ever got to do .. 
that lewis gun kit is pretty cool also ... 
sounds like that stuart kit should make a great tank for a lot of
people.. 
73 de 
ray 
louisiana tigers 
confederate tank batt. 

On Mon, 12 Jan 2004 20:59:53 -0600 "Flier" <flier-at-sbcglobal.net> writes:
> FYI, spent an hour or so this evening and figured out the Stuart 
> drive
> electronics.  There's a 22 pin IC on the main board labeled 8A991AP 
> that's
> apparently an RF decoder.  I was able to probe out the pins that 
> enable the
> right forward, right backward, turret left, turret right, MG & 
> cannon
> 'fire', etc., etc.  This'll save a lot of time interfacing a 
> standard RC
> system to the tank as all the drive electronics can stay stock and 
> you still
> get the sound effects.
> 
> Pull the pin(s) positive (high) and you get the resulting movement 
> together
> with sound effects.  It'll be pretty simple to interface to
> servos/microswitches.  I'm gonna play around with some logic to see 
> if I can
> figure out a joystick mixer.  If not I'll resort to 4 small SPDT 
> relays and
> a diode/relay mixer.  I might even incorporate a little RC switch 
> circuit
> and 555 timer to toggle the cannon 'fire' sound and resulting brief 
> recoil
> (drive motors kick back a little) AFTER the paintball marker fires.
> 
> Anyway, ends up being pretty simple.  I'll post out on my website 
> when it's
> complete.
> 
> Regards,
> 
> Ted   www.foxflier.com
> 
> 


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