# Controller 接線表
| MCU Pin Name | Pin Type | Label |
| ------------ | -------- | ------------ |
| PD5 | I/O | Sensor1_TX |
| PD6 | I/O | Sensor1_RX |
|- |- |- |
| PB10 | I/O | Sensor2_TX |
| PB11 | I/O | Sensor2_RX |
|- |- |- |
| PB6 | I/O | MODBUS485_TX |
| PB7 | I/O | MODBUS485_RX |
|- |- |- |
| PA4 | I/O | SPI1_CSN |
| PA5 | I/O | SPI1_SCK |
| PA6 | I/O | SPI1_MISO |
| PA7 | I/O | SPI1_MOSI |
| PC4 | I/O | SPI1_RST |
| PC5 | I/O | SPI1_INT |
|- |- |- |
| PF11 | I/O | S1_Green/GND |
| PF13 | I/O | S1_Red/GND |
| PF15 | I/O | S2_Green/GND |
| PG1 | I/O | S2_Red/GND |
|- |- |- |
| PE8 | I/O | Relay_1 |
| PE10 | I/O | Relay_2 |
| PE12 | I/O | Relay_3 |
| PE14 | I/O | Relay_4</br>24V-LOW</br>0V-HIGH</br>5Vout-COMP|
|- |- |- |
| PD9 | I/O | DS18B20/3V3/GND|
|- |- |- |
| BOOT0 | I/O | 反側導通</br>On-3V3</br>Off-GND</br>BOOT0-10K|
| NRST | I/O | Button-GND |
| 5VOUT | I/O | 繼電器參考電位(COM)|

###### tags: `Controller`