We're helping to spread the word about the amazing 8-core, Propeller microcontroller. A multi-core microcontroller designed for product inventors, entrepreneurs, hobbyists and students alike.

The Propeller microcontroller was created by Parallax. Visit the Parallax website for free progamming tools and resources.

Explore the Propeller Object Exchange containing code contributed by members of the Propeller community and make sure to check out the Propeller forum.

We want to support you inventing with Spin and the Propeller microcontroller. We support other users in the UK and EU with this webstore which includes a selection of Propeller chips, development boards and accessories.


Spin is a simple, BASIC-like, high-level language designed for the Propeller rmulticore microcontroller. The Propeller chip includes a built-in Spin interpreter.
Other progamming langauages include: Propeller Assembly (fast and can be combined with SPIN), C, BASIC and Forth.

The Propeller microcontroller

The Propeller is a powerful hobbyist-friendly multicore microcontroller that features 8 identical 32-bit processor cores ('cogs') managed by a central hub. All of the cogs have access to all 32 of the I/O pins - and each cog includes it's own local memory and powerful counter timers. See the block diagram below.

Propeller specifications

► 8 Processors (cogs)
  • ► Supply voltage: 3.3 V
  • ► Operating Temperature: -55 to +125 °C
  • ► 32 I/O pins
  • ► External Clock Speed: DC to 80 MHz
  • ► Internal RC Oscillator: ~12 MHz or ~20 kHz
  • ► Execution Speed: 0 to 160 MIPS (20 MIPS/cog)
  • ► Global ROM/RAM: 32768/32768 bytes
  • ► Cog RAM: 512 x 32 bits/cog
  • ► Languages: Spin (native, object-based), Assembly (native low-level), C/C++ (via PropGCC), Forth, BASIC

Propelle rmulticore microcontroller Block diagram

Propeller1 microcontroller block diagram

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