树莓派外接扩展板的的测试

测试源码

led_cycle.c

#include <wiringPi.h>int main(int argc,const char *argv[] ){// 初始化wiringPi//int wiringPiSetup(void); wiringPiSetup();int i = 2;int j = 0;// 设置IO口全部为输出状态for( i = 2 ; i < 6 ; i++ )//void pinMode(int pin, int mode); pinMode(i, OUTPUT);for (j = 0; j < 20; j++){// 点亮LED1 500ms,熄灭500ms//void digitalWrite(int pin, int value); digitalWrite(2, HIGH); //void delay(unsigned int howLong);delay(500);digitalWrite(2, LOW); delay(500);// 点亮LED2 500ms,熄灭500msdigitalWrite(4, HIGH);delay(500);digitalWrite(4, LOW);delay(500);// 点亮LED3 500ms,熄灭500msdigitalWrite(3, HIGH);delay(500);digitalWrite(3, LOW);delay(500);// 点亮LED4 500ms,熄灭500msdigitalWrite(5, HIGH);delay(500);digitalWrite(5, LOW); delay(500);}return 0;}

test_beep.c

#include <stdio.h>#include <wiringPi.h>int main(int argc,const char *argv[] ){// 初始化wiringPi//int wiringPiSetup(void); wiringPiSetup();int i = 1;int key_array[6] = {0,13,12,5,25,6};//void pinMode(int pin, int mode); for(i = 1; i < 6; i++){pinMode(key_array[i], INPUT);}//int digitalRead(int pin); if (0 == digitalRead(13)){delay(20);printf("KEY1 is pressed!\n");}else if (0 == digitalRead(12)){delay(20);printf("KEY2 is pressed!\n");}else if (0 == digitalRead(5)){delay(20);printf("KEY3 is pressed!\n");}else if (0 == digitalRead(25)){delay(20);printf("KEY4 is pressed!\n");}else (0 == digitalRead(6)){delay(20);printf("KEY5 is pressed!\n");}return 0;}

test_key.c

#include <stdio.h>#include <wiringPi.h>int main(int argc,const char *argv[] ){// 初始化wiringPi//int wiringPiSetup(void); wiringPiSetup();int i = 1;int key_array[6] = {0,13,12,5,25,6};//void pinMode(int pin, int mode); for(i = 1; i < 6; i++){pinMode(key_array[i], INPUT);}//int digitalRead(int pin); if (0 == digitalRead(13)){delay(20);printf("KEY1 is pressed!\n");}else if (0 == digitalRead(12)){delay(20);printf("KEY2 is pressed!\n");}else if (0 == digitalRead(5)){delay(20);printf("KEY3 is pressed!\n");}else if (0 == digitalRead(25)){delay(20);printf("KEY4 is pressed!\n");}else (0 == digitalRead(6)){delay(20);printf("KEY5 is pressed!\n");}return 0;}

key_led.c

#include <stdio.h>#include <wiringPi.h>int main(int argc,const char *argv[] ){// 初始化wiringPi//int wiringPiSetup(void); wiringPiSetup();int i = 1;int j = 2;int key_array[6] = {0,13,12,5,25,6};// 设置IO口全部为输出状态for( j = 2 ; j < 6 ; j++ )//void pinMode(int pin, int mode); pinMode(j, OUTPUT);//void pinMode(int pin, int mode); for(i = 1; i < 6; i++){pinMode(key_array[i], INPUT);}//int digitalRead(int pin); if (0 == digitalRead(13)){delay(20);printf("KEY1 is pressed!\n");// 点亮LED1 2s，然后熄灭//void digitalWrite(int pin, int value); digitalWrite(2, HIGH); //void delay(unsigned int howLong);delay(2000);digitalWrite(2, LOW); }else if (0 == digitalRead(12)){delay(20);printf("KEY2 is pressed!\n");// 点亮LED2 2s，然后熄灭digitalWrite(4, HIGH);delay(2000);digitalWrite(4, LOW);}else if (0 == digitalRead(5)){delay(20);printf("KEY3 is pressed!\n");// 点亮LED3 2s，然后熄灭digitalWrite(3, HIGH);delay(2000);digitalWrite(3, LOW);}else if (0 == digitalRead(25)){delay(20);printf("KEY4 is pressed!\n");// 点亮LED4 2s，然后熄灭digitalWrite(5, HIGH);delay(2000);digitalWrite(5, LOW); }else (0 == digitalRead(6)){delay(20);printf("KEY5 is pressed!\n");// 全部点亮 2s，然后全部熄灭for( j = 2 ; j < 6 ; j++ ){digitalWrite(j, HIGH);delay(2000);}for( j = 2 ; j < 6 ; j++ ){digitalWrite(j, LOW);}}return 0;}

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