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[DPRG] Re: IS471F

Subject: [DPRG] Re: IS471F
From: David Peterson robologist at yahoo.com
Date: Sun Jun 24 15:14:03 CDT 2001

I had to ask them about it, since ya mentioned the problem. And it helped
out pretty good.

Pete Skeggs reply on PARTS:
Oops.  That schematic was hand-drawn by Marvin last year, but you are
the first to point out the error.  The wires going from RB5 and RB6
should be connected to the other ends of R2 and R3.

BTW, R2 and R3 are optional.  They are only needed if you use Sharp
GP2D15 sensors as were used last year.  If you use the sensor board,
R2 and R3 are redundant and can be omitted.


David Peterson wrote:

> There was something brought up about the schematic on the PARTs site for
> minisumo kit. It appears that RB5 and RB6 of the PIC (Stamp interpreter)
> tied to +5, at least in the schematic picture at
> http://www.portlandrobotics.org/mini-sumo-kit/images/pica.jpg . I'm
> that the PIC I/O lines are actually supposed to go directly to the header
> perhaps through the 10k resistor to the header (why?), and +5 and ground
> the other 2 pins. It was pretty cool to see how the CdS cell and capacitor
> was used with the capabilities of the Stamp Pot command. Any comments or
> clarifications anyone can give on the PIC I/O lines to the sensor board?
> David P
> http://www.geocities.com/robodave2000/

----- Original Message -----
>From: "Rodent" <daweasel at swbell.net>
To: "Dallas Personal Robotics Group" <dprglist at dprg.org>
Sent: Wednesday, June 20, 2001 10:25 PM
Subject: Re: [DPRG] Re: IS471F

> I hope no one is working off his Stamp 1 board schematic -- the two stamp
> pins going to the I/R sensors are tied directly to +5.
> ----- Original Message -----
> > Have a look at:
> >
> > <A
> > Mini-Sumo Robot Kit: Sensor Board</A>

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