Propeller ASC+ (Plus)

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Quick Overview

Program the multi-core Propeller microcontroller with Propeller GCC!

Propeller ASC+ (Plus)

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The Propeller ASC+ is an Arduino Shield Compatible prototyping system designed to use existing Arduino add-on boards with the Propeller's SPIN language or Propeller Assembly.

The board provides:

  • mini-USB interface.
  • MCP3208 12-bit analog to digital converter.
  • 3.3v AUX port for extra digital I/O or TV/keyboard/mouse or RGB using only a few resistors.
  • Fourteen Arduino compatible, current protected 3.3v digital I/O pins.
  • PWM, I2C, SPI, UART and more, in any combination on any pin.
  • A 64 kilobyte EEPROM (32K for program + 32K for data storage)
  • 3.3v and 5v voltage regulators.
  • Can be powered from the USB port (500mA polyfuse) or with 6-9v 2.1mm power jack.


Download the free (but closed source) Propeller software from the Parallax website at
Brad's Spin Tool (also closed) is a little more advanced option that also runs on Linux & Mac.
If C is your preference, go for the free Catalina C.
Also the new open beta of Propeller GCC. (Forum | Google Code)
For drag-and-drop programming, the 12-Blocks GUI is a must-have.
A large list of Arduino shields can be found at
To stay up to date with the development of this product, please subscribe to this thread at the Parallax forums.

Please see the Wiki for more information!

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