Chip II

The Robot!

Right now this page will contain some scattered information and lots of pictures.  When I get around to it, I'll be putting in-depth information here on every aspect of my robot project.

    The brains of the robot are based around the MaxMaster package of the SUPER-TCOMP single board computer.  This unit made by Ray Butts, is the most versatile system I've seen that is based on Motorola's 68HC11 microcontroller.

    I've just completed my own expansion board that plugs into the bus of my SUPER-TCOMP, and allows me to add many memory mapped devices.  This device was inspired by the need for lots of parallel I/O I saw when looking at the specs for a speech board I wanted.  I'm currently using it to interface a big 4x40 backlit LCD display, a digital output port (you never can have enough), and the V8600 speech board.

Super-EXP Schematic - allows up to 16 parallel I/O devices to be memory mapped from $6000 to $6F00


Here you can see the top of the robot's body.  Notice the ultrasonic transducer on
a stepper motor and a temperature sensor with an op-amp chip next to it.
The robot's old head is in this picture.  I've since replaced it with a newer unit as
seen in the other pictures.

Here you can see the robot's underside.  This is where the simple
drive train assembly is housed.  The robot uses two 24VDC
gearhead Pittman motors that drive a pair of 6" lawnmower

This is a basic picture of the inside of the robot.
I build the robot body with plans for two main section,
top and bottom.  I have more detailed information on
these sections below.

Inside Top
This section is where all of the robot's main circuitry
is housed.  Here is where I put the SUPER-TCOMP
board that makes up the robot's brain.  I also have
basically all of my other main circuitry boards in here.
You can also see the nice barrier strips and connectors
that I use to connect all the devices to my robot's
various I/O ports.
Inside Bottom
This section is where the robot's power distribution system
is housed.  In the center are two big 12V 5Ah sealed lead
acid batteries.  Right next to it are barrier strips that I use
for power distribution.  In the upper right corner is the LM7805
linear power regulator that I use to supply the +5V power lines
to most of the electronics boards inside the robot.

This is the 68HC11 based microcontroller board that I use
as the robot's brain.  It contains a 68HC11E1, a 32k SRAM
memory chip with a 10 year backup battery, a 68HC24
Port Replacement Unit, and a display/keypad module.  I am
currently using the keypad as the input device on the back of
the robot, however I replaced the display with a larger unit
interfaced through my own expansion board.  In the future,
I might install this old display elsewhere on the robot as a
mini status monitor or something.

V8600 Speech Synthesis Board
All good robots need to talk, right?
Well, I thought so too.  Therefore, I
got this neat little piece of equipment.
Through this board, my robot can talk,
generate DTMF tones, and even make
musical notes!  It was easy to interface
it to my expansion board, and wasn't
too hard to get working.

Project Sections
Project overview
My tools and equipment
The robot!

Questions? Comments? Write me at