## MP157AAA3开发板引脚对应

### 共阴极数码管段选数组
uint8_t Seg_Dula[11] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x40}; //0-9和-

### IIC接口
IIC1-SDA -> PF15    
IIC1-SCL -> PF14

### 串口
TX -> PG11  
RX -> PB2

### 独立按键
key3 -> PE9  
key4 -> PG2  
key5 -> PG1  
key6 -> PG0

### LED灯
LED4 -> PC7  
LED5 -> PF1  
LED6 -> PI11  
LED7 -> PI10

### 震动马达
M1 -> PF6

### 蜂鸣器
buzzer -> PB6

### 电路板如下
![](Picture/board.jpg)