--- /dev/null
+"""Pin definitions for the Onion Omega2+ Expansion Dock."""
+
+from adafruit_blinka.microcontroller.mips24kec import pin
+
+D0 = pin.GPIO0
+D1 = pin.GPIO1
+D2 = pin.GPIO2
+D3 = pin.GPIO3
+
+D4 = pin.GPIO4
+D5 = pin.GPIO5
+D6 = pin.GPIO6
+D7 = pin.GPIO7
+D8 = pin.GPIO8
+D9 = pin.GPIO9
+
+D11 = pin.GPIO11
+D15 = pin.GPIO15 #RGB LED Blue
+D16 = pin.GPIO16 #RGB LED Green
+D17 = pin.GPIO17 #RGB LED Red
+D18 = pin.GPIO18
+D19 = pin.GPIO19
+
+SDA = pin.I2C0_SDA
+SCL = pin.I2C0_SCL
+
+SCLK = pin.SPI0_SCLK
+MOSI = pin.SPI0_MOSI
+MISO = pin.SPI0_MISO
+CS = pin.SPI0_CS
+SCK = SCLK
+
+UART_TX = pin.UART1_TX
+UART_RX = pin.UART1_RX