56 lines
1018 B
C
56 lines
1018 B
C
/*
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* 设置PIN脚为1或0电位(电压)
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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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#include <string.h>
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//#include <linux/type.h>
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#include <ctype.h>
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static int is_num(char *str)
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{
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int i, len;
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for (i = 0, len = strlen(str); i < len; i++) {
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if (isdigit(str[i]) == 0) {
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printf("不是数字\n");
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return 1;
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}
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}
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return 0;
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}
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int main(int argc, char *argv[])
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{
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if (argc != 3) {
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printf("Parameter error.\n");
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exit(1);
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}
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if (is_num(argv[1]) == 1) {
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printf("Parameter error, parameter 1 is PIN pin value\n");
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exit(1);
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}
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if (is_num(argv[2]) == 1) {
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printf("Parameter error, parameter 2 is true or false\n");
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exit(1);
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}
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int pin = atol(argv[1]);
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wiringPiSetup();
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pinMode(pin, OUTPUT);
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if (atol(argv[2]) == 1) {
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digitalWrite(pin, HIGH);
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}
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if (atol(argv[2]) == 0) {
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digitalWrite(pin, LOW);
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}
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return atol(argv[2]);
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}
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