The easiest way to add our Co-Processor to a Parallax
Board of Education or Toddler. Also fits Basic Micro
Atom Super Development Board and Atom Pro Arc Boards. |
The kit comes with the PCB, the Co-Processor, and all
parts for assembly except the IRLEDs and the IR sensor which
already come with a BoE-Bot or Toddler kit.
Our Co-Processor chip features -
Click for more
info on the Co-Processor chip.
The PCB features -
- Simple to use and understand serial user interface.
It is jumper selectable for 2400 or 9600 Baud and
takes very few bytes to program.
- Eight ramping servo controllers - allow smooth starts
and stops for modified servo drive motors and slow
panning movement of accessory servos. Send two bytes
to the Co-Processor to do a ramped move from where
the servo is currently to where the command sends it.
Ramps are often set only once (again by sending two
bytes) at the beginning of the program but they may
be reprogrammed whenever desired. You can easily read
back the setpoints or current commanded position of
any of the servo channels.
- Eight timers settable in 20 ms increments allow
a processor to continue working rather than stopping
for a PAUSE instruction. The processor tests one line
to see if any of the timers have timed out. That is
a quick I/O bit test so there is little overhead.
When a timeout occurs, the user
sends one byte and gets back one byte with a bit in
it for each timer. The act of reading the status byte
resets the flags for the next timeout. The timers are
unique in a servo controller and rather easily allow
multitasking - In a BASIC Stamp®!
- Five channels of 10 bit A/D. Can also be read as 8 bit
for times when faster result with less resolution is
- IR Proximity Detector built in. Setting the frequency
under program control can change the sensitivity. Two of
the servo channels can be dedicated to driving LEDs that
indicate the state of the "vision" system.
- Two Bumper inputs.
- We have a Subsumption Engine that is very useful
to wheeled robots. Extensive documentation further on the
website and in the Co-Processor manual explain Subsumption
and how to use it.
- Extensive Co-Processor information in manual for
training and programmer's reference.
Click for more
info on the Co-Processor PCB.
- Mounting holes line up exactly so it fits directly under
the Parallax Board of Education or Toddler.
- Professional silk-screened and solder-masked board.
- Bumper and the vision parts can mount on board for pin
and space saving on main controller board.
- On-board LEDs to show the status of the IRPD system and
the bumper hits.
- Three wire (servo style) A/D connections are perfect for
Sharp GP2D12 IR distance sensors. Provides + 5V power, ground,
and A/D input in one cable.
- Eight servo controller connectors powered from separate
DC input so tapped or multi-battery setups work properly.
- The Co-Processor is driven from a crystal rather than a
less precise resonator. One example program shows a time of
day clock that can run in the background!
- Use of the Co-Processor gains several Stamp I/O pins,
variables, code space and PERFORMANCE.
- Detailed assembly directions in the manual.