Arduino

const int sigPin = 7; //the number of the tile switch pin
const int ledPin = 13; //the number of the LED pin
// variable will change:
boolean sigState = 0; //variable for reading the tilt switch status
void setup()
{
    //initialize the LED pin as an output:
    pinMode(ledPin, OUTPUT);
    //initialize the tilt switch pin as an input:
    pinMode(sigPin, INPUT);
    Serial.begin(9600);
}

void loop()
{
    //read the state of tilt switch value:
    sigState = digitalRead(sigPin);
    Serial.println(sigState);
    if (sigState == HIGH)
    {
        //turn LED off:
        digitalWrite(ledPin, LOW);
    }
    else
    {
        //turn LED on:
        digitalWrite(ledPin, HIGH);
    }
}

树莓派

C

#include <wiringPi.h>
#include <stdio.h>
#define TiltPin   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){
            printf("setup wiringPi failed !");
                return 1;
        }
        pinMode(TiltPin, INPUT);
        LED("GREEN");
        while(1){
        if (0 == digitalRead(TiltPin)){
                        delay(10);
                        if (0 == digitalRead(TiltPin)){
                LED("RED");
                            printf("Tilt!\n");
                    }
        }
                else if (1 == digitalRead(TiltPin)){
                        delay(10);
                        if (1 == digitalRead(TiltPin)){
                while(!digitalRead(TiltPin));
                            LED("GREEN");
                        }
                }
        }
        return 0;
}

Python

#!/usr/bin/env python
import RPi.GPIO as GPIO

TiltPin = 11
Gpin = 12
Rpin = 13

def setup():
    GPIO.setmode(GPIO.BOARD)   #Numbers GPIOs by physical location
    GPIO.setup(Gpin, GPIO.OUT) #Set Green Led Pin mode to output
    GPIO.setup(Rpin, GPIO.OUT) #Set Red Led Pin mode to output
    GPIO.setup(TiltPin, GPIO.IN, pull_up_down=GPIO.PUD_UP) #Set BtnPin's mode is input, and pull up to high level(3.3V)
    GPIO.add_event_detect(TiltPin, GPIO.BOTH, callback=detect, bouncetime=200)

def Led(x):
    if x == 0:
        GPIO.output(Rpin, 1)
        GPIO.output(Gpin, 0)
    if x == 1:
        GPIO.output(Rpin, 0)
        GPIO.output(Gpin, 1)

def Print_screen(x):
    if x == 0:
        print('    *********')
        print('    * Tilt! *')
        print('    *********')
        
def detect(chn):
    Led(GPIO.input(TiltPin))
    Print_screen(GPIO.input(TiltPin))

def loop():
    while True:      
        pass

def destroy():
    GPIO.output(Gpin, GPIO.LOW) 
    GPIO.output(Rpin, GPIO.LOW)
    GPIO.cleanup()

if __name__ == "__main__":
    setup()
    try:
       loop()
    except KeyboardInterrupt:
       destroy()