l9110风扇电机驱动模块,l9110风扇模块原理

四个管脚分别为GND,VCC,INA,INB
vcc接通5v供电引脚
INA，和INB分别为正转和反转
正转时风向向后

用pinMode初始化定义管脚为输出状态
digitalWrite（）给定引脚的状态

INA接wPi0
INB接wPi1
代码如下
下面展示一些 内联代码片。

//灭火风扇L9110h#include<wiringPi.h>#include<stdio.h>#define INA 0#define INB 1int main(void){int i;if(wiringPiSetup() == -1){printf("loss");return 1;}pinMode(INA,OUTPUT);pinMode(INB,OUTPUT);int a = 5;while(a--){printf("INA highn");digitalWrite(INA,HIGH);for(i = 0; i < 4; i++){delay(1000);}printf("INA lown");digitalWrite(INA,LOW);for(i = 0; i <4; i++){delay(1000);}printf("INB highn");digitalWrite(INB,HIGH);for(i = 0; i < 4; i++){delay(1000);}printf("INB lown");digitalWrite(INB,LOW);for(i = 0; i < 4; i++){delay(1000);}}return 0;}接线图