The Propeller Project Board from Parallax is for projects that need a permanent home. Its low cost, feature-rich, and simple design is ideal for most any project using
The Human Interface Board also from Parallax brings advanced functionality to the QuickStart development
platform. The Human Interface Board stacks directly on
the Propeller P8X32A multicore microcontroller. The core
Propeller programming circuitry is built into the board,
with access to all 32 I/O pins.
Features such as power and over-voltage LEDs, and
well-placed labels on both sides of the board help make
circuit building fast and accurate. The reset button, USB,
power, and optional connectors are all set at right angles
for easy access when the finished project is mounted in
an enclosure. Key features include:
• Programming-ready with surface-mount Propeller
P8X32A, 64 KB EEPROM, and 5 MHz removable crystal
• USB Mini-B connector for programming and power
is compatible with USB charging devices.
• Large 5. 75 square inch prototyping area with 580
thru-hole connections provides plenty of room for a
• Built-in pads and circuitry make it easy to add a
microSD card holder and VGA connector.
• SOT- 23 pads and custom-designed 64-pin SMT pads
accomodate a wide variety of IC packages.
• 40-pin header accepts add-on boards made for the
The retail price is $24.99.
For more information, contact:
top of the QuickStart development platform, creating a
minimal footprint for both boards.
With multiple audio and video outputs, and keyboard
or mouse inputs, as well as a microSD card socket, the
Interface Board can add an interactive interface to any
project. Where applicable, it uses the same I/O pin
assignments as the Propeller Demo Board peripherals.
Like the QuickStart development platform, the Human
Interface Board is an open-source hardware design, so all
design files — including layout, schematics, and firmware —
are available under licenses that allow free distribution and
reuse. The Human Interface Board's design can be
incorporated into new applications royalty free and
without a non-disclosure agreement. Key features include:
• Multiple audio and video outputs for application
• Two PS/2 ports for either two keyboards, two mice,
or a mix with one keyboard and one mouse.
• Infrared transceiver for remote control and
• Expandable storage for up to 32 GB of data storage
A couple application ideas would be a control system
kiosk or an embedded video game system. The retail price
Images SI, Inc., has released a updated servo motor controller
that provides smoother servo motor
30 February 2013
response. The SMC-01 is a manual
controller for a single servo motor by
way of an onboard potentiometer.
The heart of the SMC-01 is a
PIC12F683 microcontroller. The
potentiometer connects to the
microcntroller and proportionally
controls the servo motor's rotation.