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/*
Copyright (c) 2016 CurlyMo <curlymoo1@gmail.com>
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include "wiringx.h"
#include "../src/platform/platform.h"
char *usage =
"Usage: %s platform GPIO\n"
" GPIO is the GPIO to write to\n"
"Example: %s raspberrypi2 10\n";
int main(int argc, char *argv[]) {
char *str = NULL, *platform = NULL;
char usagestr[130];
int gpio = 0, invalid = 0;
memset(usagestr, '\0', 130);
// expect only 1 argument => argc must be 2
if(argc != 3) {
snprintf(usagestr, 129, usage, argv[0], argv[0]);
puts(usagestr);
return -1;
}
// check for a valid, numeric argument
platform = argv[1];
str = argv[2];
while(*str != '\0') {
if(!isdigit(*str)) {
invalid = 1;
}
str++;
}
if(invalid == 1) {
printf("%s: Invalid GPIO %s\n", argv[0], argv[2]);
return -1;
}
gpio = atoi(argv[2]);
if(wiringXSetup(platform, NULL) == -1) {
wiringXGC();
return -1;
}
if(wiringXValidGPIO(gpio) != 0) {
printf("%s: Invalid GPIO %d\n", argv[0], gpio);
wiringXGC();
return -1;
}
pinMode(gpio, PINMODE_OUTPUT);
while(1) {
printf("Writing to GPIO %d: High\n", gpio);
digitalWrite(gpio, HIGH);
sleep(1);
printf("Writing to GPIO %d: Low\n", gpio);
digitalWrite(gpio, LOW);
sleep(1);
}
}
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