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Domino Pi Hardware


Domino Pi is a low-cost, compact OpenWRT-based 802.11 bgn WiFi development board based on Qualcomm/Atheros AR9331 WiSoC.

Domino Pi

The Domino Pi board extends the Domino Core module by adding the following features:

  • Integrated USB<->UART bridge for serial port (default to U-Boot / Linux console)
  • Integrated +5 V input / +3.3 V output, 2 A DC/DC power supply
  • Integrated 2.4 GHz WiFi PCB antenna
  • Integrated Jumpstart push button
  • Integrated Power and Wireless LEDs
  • Integrated 2x 28 pin, 2.54 mm pitch headers

The dual edge headers provide:

  • USB 2.0 (host or slave)
  • 2 x 10/100MB Ethernet ports
  • I2S (CK, WS, SD, MCK, MICIN)
  • SLIC
  • SPDIF Output
  • 9x LEDs (also used for bootstrap settings)
  • Up to 29 x GPIOs (multiplexed with other functions above)


Specs Value
Weight 16 g
Dimensions 71.12 x 33.02 x 10 mm
CPU AR9331, 400 MHz
Memory 16 MB SPI Flash and 64 MB DDR2 RAM
RF Frequency 2.4 GHz band
Max Output Power +21 dBm
Wireless Standards 802.11 bgn
Antenna (port) U.FL connector, built-in PCB antenna
Power Supply 5 V, max. power consumption 6.5 W
Firmware U-Boot, OpenWRT
Available Interfaces USB host/slave, 2 x Ethernet, SPI, I2S, SLIC, SPDIF, JTAG, 9x LEDs, 29 x GPIOs
User Interfaces USB UART bridge, Jumpstart push button, Power Led, Wireless LED

Pinout Diagram

Domino Pi

Get in PDF format.

Domino Pi Pinout