BC417143
腳位
參考資訊：
1. byron76
2. blutunode
3. csr-spi-ftdi
4. CsrSpiDrivers
5. opensource-sensor-node-firmware-for
如下：
| Pin | Name |
|---|---|
| 1 | TX |
| 2 | RX |
| 3 | CTS |
| 4 | RTS |
| 5 | PCM_CLK |
| 6 | PCM_OUT |
| 7 | PCM_IN |
| 8 | PCM_SYNC |
| 9 | AIO0 |
| 10 | AIO1 |
| 11 | RESET |
| 12 | 3.3V |
| 13 | GND |
| 14 | NC |
| 15 | USB_D- |
| 16 | SPI_CS |
| 17 | SPI_MOSI |
| 18 | SPI_MISO |
| 19 | SPI_CLK |
| 20 | USB_D+ |
| 21 | GND |
| 22 | GND |
| 23 | PIO0 |
| 24 | PIO1 |
| 25 | PIO2 |
| 26 | PIO3 |
| 27 | PIO4 |
| 28 | PIO5 |
| 29 | PIO6 |
| 30 | PIO7 |
| 31 | PIO8 |
| 32 | PIO9 |
| 33 | PIO10 |
| 34 | PIO11 |