| .. _seeed_xiao_expansion_board: |
| |
| Seeed Studio XIAO Expansion Board |
| ################################# |
| |
| Overview |
| ******** |
| |
| Seeed Studio XIAO Expansion Board is a powerful functional expansion board |
| for `Seeed Studio XIAO series`_ of only half Raspberry Pi 4 size. It enables |
| building prototypes and projects in an easy and quick way. With its rich |
| peripherals, you could explore the infinite possibilities of Seeed Studio |
| XIAO series. |
| |
| .. figure:: img/seeed_xiao_expansion_board.webp |
| :align: center |
| :alt: Seeed Studio XIAO Expansion Board |
| |
| Seeed Studio XIAO Expansion Board (Credit: Seeed Studio) |
| |
| Pin Assignments |
| =============== |
| |
| +-----------------------+---------------------------------------------+ |
| | Shield Connector Pin | Function | |
| +=======================+=============================================+ |
| | 0 | Grove*1 (A0, D0) | |
| +-----------------------+---------------------------------------------+ |
| | 1 | User button | |
| +-----------------------+---------------------------------------------+ |
| | 2 | MicroSD SPI CSn | |
| +-----------------------+---------------------------------------------+ |
| | 3 | Buzzer(A3) | |
| +-----------------------+---------------------------------------------+ |
| | 4 | Grove*2 I2C SDA | |
| +-----------------------+---------------------------------------------+ |
| | 5 | Grove*2 I2C SCL | |
| +-----------------------+---------------------------------------------+ |
| | 6 | Grove*1 UART TX | |
| +-----------------------+---------------------------------------------+ |
| | 7 | Grove*1 UART RX | |
| +-----------------------+---------------------------------------------+ |
| | 8 | MicroSD SPI SCK (Serial Clock Input) | |
| +-----------------------+---------------------------------------------+ |
| | 9 | MicroSD SPI MISO (Serial Data Input) | |
| +-----------------------+---------------------------------------------+ |
| | 10 | MicroSD SPI MOSI (Serial Data Output) | |
| +-----------------------+---------------------------------------------+ |
| |
| Programming |
| *********** |
| |
| LED Button Sample |
| ================= |
| |
| Set ``-DSHIELD=seeed_xiao_expansion_board`` when you invoke ``west build``. For example: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/basic/button |
| :board: xiao_ble/nrf52840 |
| :shield: seeed_xiao_expansion_board |
| :goals: build |
| |
| LVGL Basic Sample |
| ========================== |
| |
| Set ``-DSHIELD=seeed_xiao_expansion_board`` when you invoke ``west build``. For example: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/display/lvgl |
| :board: xiao_ble/nrf52840 |
| :shield: seeed_xiao_expansion_board |
| :goals: build |
| |
| .. _Seeed Studio XIAO series: |
| https://www.seeedstudio.com/XIAO-c-1964.html |
