Propeller C3

  • 32209 Propeller C3 Credit Card Sized Computer
Product ID: 32209


The C3 is a true “Credit-Card–sized Computer” that augments the Propeller chip with a number of onboard peripherals to facilitate large scale and complex applications.

Designed in cooperation with Nurve Networks LLC and André LaMothe, the Propeller C3 is the newest Propeller-based application platform from Parallax. Ready to support a wide array of peripherals, this system is ideal for industrial control, monitoring systems, high-level languages, robotics, gaming, and more.

The C3 was designed to be compatible with other Propeller-based development boards such as the Propeller Demo Board and the HYDRA, so porting applications is a snap. Additionally, the C3 uses a novel SPI bus design that allows all the onboard peripherals to be accessed with a single SPI bus (3 signals) along with chip-select logic (2 signals) that supports up to 8 devices in total. Thus, the IO impact of all the onboard peripherals is minimal.

Key Features:

  • Multicore Propeller P8X32A-Q44 with 5.00 MHz socketed crystal to upgrade for over-clocking experiments
  • 64 KB Propeller boot EEPROM holds boot image plus 32 KB extra for data
  • Supports USB or external wall adapter power sources for convenience
  • (4) Break-away mounting tabs, removable if not needed
  • Slick black and white industrial design sure to be the envy of all your friends

Application Ideas:

  • Industrial control
  • Monitoring systems
  • Gaming
  • Experimentation


  • Open source hardware & software design
  • Dual high-current 1.5 A, 3.3/5 V voltage regulators with heavy filtering
  • VGA port with multiplexing logic to reuse IO’s
  • RCA Video/Audio ports for NTSC/PAL composite video
  • PS/2 port for keyboard or mouse
  • 1 MB SPI FLASH memory
  • 2-channel Microchip MCP3202 SPI A/D converter with 12-bit resolution
  • (2) Microchip 32K x 8 bit SPI SRAMs
  • MicroSD card w/SPI interface
  • (4) 3-wire servo port headers to directly drive servos from the Propeller
  • Ultra-compact credit-card–sized PCB footprint
  • Power requirements: 7.5–12 VDC, 300+ mA 2.1mm center-positive supply; OR power via high-power USB, hub port preferred
  • Communication/Interface: USB, GPIO, microSD card
  • Dimensions: (without tabs) 3.0 x 2.175” (75.9 x 55.2 mm)
  • Operating temp range: -40 to +185 °F (-40 to +85 °C)

Note: USB A to Mini B Cable required for programming and USB power (#805-00006), not included. 9 V, 300 mA minimum power supply recommended (#750-00008) not included. Caution: Do not connect to USB and external power at the same time.

Downloads & Documentation

Product Specific Downloads
Download Details More Info
Propeller C3 Product Document - 331.24 KB | updated: 06 Aug 2015 - 2:52 pm
Unleashing the Propeller C3 Book - 2.5 MB | updated: 24 Sep 2012 - 10:32 am
Download Groups
Propeller P8X32A Software
Propeller P8X32A Documentation

Additional Resources