From 5d323a8dcacfd05f234191b817aebbae28e8a498 Mon Sep 17 00:00:00 2001
From: Ignacio Abundez <abundezignacio@gmail.com>
Date: Thu, 17 Sep 2026 11:04:54 -0600
Subject: [PATCH] GPIO test

---
 main.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/main.c b/main.c
index 7d79c4b..ca352f1 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,40 @@
 #include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 int main (int argc, char *argv[]){
+	int fd; 
+	// export 
+	fd = open("/sys/class/gpio/chip0/export", O_WRONLY);
+	write(fd,"17", 2);
+	close(fd);
+	
+	//pin direction
+	fd = open("/sys/class/gpio/chip0/gpio17/direction", O_WRONLY);
+	write(fd,"out", 3);
+	close(fd);
+
+
+	//pin value
+	fd = open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);
+	write(fd,"1", 1);
+	close(fd);
+	sleep(1);
+	
+	fd = open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);
+	write(fd,"0", 1);
+	close(fd);
+	sleep(1);
+	
+	//unexport 
+	fd = open("/sys/class/gpio/chip0/unexport", O_WRONLY);
+	write(fd,"17", 2);
+	close(fd);
+	
+
+
+
+
 	printf("Hello from Raspberry Pi!\n");
 	printf("Number of arguments: %d\n",argc);
 	printf("Program is reciving: %s\n",argv[0]);