48 lines
817 B
C
48 lines
817 B
C
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/*
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*
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* N55A甲烷气体传感器
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*
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*/
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#include <wiringPi.h>
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#include <stdio.h>
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#include <stdlib.h>
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void setup(int pin) {
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wiringPiSetup();
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pinMode(pin, INPUT);
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}
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int readMethaneLevel(int pin) {
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int methaneDetected = digitalRead(pin);
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return methaneDetected;
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}
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int main(int argc, char *argv[]) {
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if (argc != 2) {
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printf("Error: Invalid number of arguments.\n");
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printf("Usage: %s PIN\n", argv[0]);
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exit(1);
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}
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int pin = atoi(argv[1]);
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if (pin < 0) {
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printf("Error: Invalid PIN value.\n");
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exit(1);
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}
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setup(pin);
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while(1) {
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int result = readMethaneLevel(pin);
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if (result == HIGH) {
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printf("CH4\n");
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}
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delay(1000); // 每隔1秒读取一次传感器
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}
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return 0;
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}
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