====== YBT模块 ======

===== - 硬件 =====

NRF52832 QFAA

^ Pin  ^ Name    ^ GPIO   ^
^ 1    | GND     |        |
^ 2    | P0.25   | P0.25  |
^ 3    | P0.26   | P0.26  |
^ 4    | MOD     | P0.27  |
^ 5    | WKP     | P0.28  |
^ 6    | DISC    | P0.29  |
^ 7    | LINK    | P0.30  |
^ 8    | DATA    | P0.31  |
^ 9    | GND     |        |
^ 10   | P0.02   | P0.02  |
^ 11   | P0.03   | P0.03  |
^ 12   | P0.04   | P0.04  |
^ 13   | P0.05   | P0.05  |
^ 14   | P0.06   | P0.06  |
^ 15   | P0.07   | P0.07  |
^ 16   | GND     |        |
^ 17   | VCC     |        |
^ 18   | RXD     | P0.14  |
^ 19   | TXD     | P0.18  |
^ 20   | RTS     | P0.19  |
^ 21   | CTS     | P0.20  |
^ 22   | /RST    | P0.21  |
^ 23   | SWDCLK  |  -     |
^ 24   | SWDIO   |  -     |


===== - I2S音频模块 =====

^ Pin  ^ Name   ^ GPIO  ^
^ 1    | 5V     | Power |
^ 2    | 3.3V   | :::   |
^ 3    | GND    | :::   |
^ 4    | LRCK   | I2S   |
^ 5    | SCLK   | :::   |
^ 6    | SDOUT  | :::   |
^ 7    | SDIN   | :::   |
^ 8    | MCLK   | :::   |
^ 9    | SCL    | I2C   |
^ 10   | SDA    | :::   |
^ 11   | AIN    | Audio |