树梅派学习 11. 振动传感器实验和干簧管传感器

振动传感器

电路图：

接线图：

实体接线图：

程序：

#include <wiringPi.h>
#include <stdio.h>

#define VibratePin	0
#define Gpin		1
#define Rpin		2

int tmp = 0;

void LED(int color)
{
	pinMode(Gpin, OUTPUT);
	pinMode(Rpin, OUTPUT);
	if (color == 0)
	{
		digitalWrite(Rpin, HIGH);
		digitalWrite(Gpin, LOW);
	}
	else if (color == 1)
	{
		digitalWrite(Rpin, LOW);
		digitalWrite(Gpin, HIGH);
	}
	else
		printf("LED Error");
}

void Print(int x){
	if (x != tmp){
		if (x == 0)
			printf("...ON\n");
		if (x == 1)
			printf("OFF..\n");
		tmp = x;
	}
}

int main(void)
{
	int status = 0;
	int tmp = 0;
	int value = 1;
	if(wiringPiSetup() == -1){ //when initialize wiring failed,print messageto screen
		printf("setup wiringPi failed !");
		return 1; 
	}

	pinMode(VibratePin, INPUT);
	
	while(1){
		value = digitalRead(VibratePin);
		if (tmp != value){
			status ++;
			if (status > 1){
				status = 0;
			}
			LED(status);	
			Print(status);
			delay(1000);
		}
	}
	return 0;
}

干簧管传感器

线路图：

#include <wiringPi.h>
#include <stdio.h>

#define ReedPin		0
#define Gpin		1
#define Rpin		2

void LED(char* color)
{
	pinMode(Gpin, OUTPUT);
	pinMode(Rpin, OUTPUT);
	if (color == "RED")
	{
		digitalWrite(Rpin, HIGH);
		digitalWrite(Gpin, LOW);
	}
	else if (color == "GREEN")
	{
		digitalWrite(Rpin, LOW);
		digitalWrite(Gpin, HIGH);
	}
	else
		printf("LED Error");
}

int main(void)
{
	if(wiringPiSetup() == -1){ //when initialize wiring failed,print messageto screen
		printf("setup wiringPi failed !");
		return 1; 
	}

	pinMode(ReedPin, INPUT);
	LED("GREEN");
	
	while(1){
		if(0 == digitalRead(ReedPin)){
			delay(10);
			if(0 == digitalRead(ReedPin)){
				LED("RED");	
				printf("Detected Magnetic Material!\n");	
			}
		}
		else if(1 == digitalRead(ReedPin)){
			delay(10);
			if(1 == digitalRead(ReedPin)){
				while(!digitalRead(ReedPin));
				LED("GREEN");
			}
		}
	}
	return 0;
}