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Thanks Steve. You know I searched on the base number
but didn't put in the "PT". Oh well. The link keeps
timing out right now but at least I know where to
look now. It'll really help having the spec on the
device.
Regards,
Ted
--- Original Message ---
From: "Steve Tyng" <stevet-at-stcharlesmd.com>
To: "tanks-at-rctankcombat.com" <tanks-at-rctankcombat.com>
Subject: RE: 1/6th RC Stuart drive electronics
figured out
>Ted,
>
>Here's the spec sheet for the chip in the Stuart.
>
>http://www.pti.com.cn/ptipdf/datasheet/PT8A990A-
991A.pdf
>
>Steve
>
>
>> -----Original Message-----
>> From: tanks-at-rctankcombat.com
[mailto:tanks-at-rctankcombat.com]
>> Sent: Tuesday, January 13, 2004 10:27 AM
>> To: tanks-at-rctankcombat.com
>> Cc: stevet-at-stcharlesmd.com
>> Subject: Re: 1/6th RC Stuart drive electronics
figured out
>>
>>
>> Sure Gents,
>>
>> I've posted what I found out on my site. I
>> rearranged a little. More to come as I make
progress.
>>
>> Joe Sommer has a nice PIC-based mixer which I think
>> will work perfectly and alleviate having to have
any
>> servos or switches. It may allow direct connection
>> of the onboard electronics right to a 6 channel RC
>> receiver. I'm hopin' to con him into burning me a
>> couple so I can try it. It'll be sweet if it works
>> and pretty easy to install. We'll see...
>>
>> Regards,
>>
>> Ted
>>
>> --- Original Message ---
>> From: "Zach Ginter" <zgunbear01-at-comcast.net>
>> To: <tanks-at-rctankcombat.com>
>> Subject: Re: 1/6th RC Stuart drive electronics
>> figured out
>>
>> >I second that, very simple diagrams and directions
>> would be a great =
>> >assitance to me as well.=20
>> > ----- Original Message -----=20
>> > From: SUSAN GUTBRODT=20
>> > To: tanks-at-rctankcombat.com=20
>> > Sent: Monday, January 12, 2004 10:04 PM
>> > Subject: Re: 1/6th RC Stuart drive electronics
>> figured out
>> >
>> >
>> > Ted,
>> > For those of us who have Stuart's....Thanks for
>> getting busy with =
>> >them and showing a "slowpoke" what can be done...I
>> for one am ignorant =
>> >about the electronics but I can copy a system if
>> presented on a "low" =
>> >enough level...
>> > Good Luck,
>> > Kurt (I STILL haven't finished my backyard)
>> Gutbrodt
>> > Lost Wages, NV
>> > ----- Original Message -----=20
>> > From: Flier=20
>> > To: tanks-at-rctankcombat.com=20
>> > Sent: Monday, January 12, 2004 6:59 PM
>> > Subject: 1/6th RC Stuart drive electronics
>> figured out
>> >
>> >
>> > 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
>> >
>>
>>
>>
>>
>>
>>
>