diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c78477b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.vscode
+.DS_Store
+build
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..a70d2b7
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,13 @@
+#include "avr/io.h"
+#include "avr/sleep.h"
+#include "avr/fuse.h"
+
+FUSES = {0xE2, 0xDF, 0xFF};
+
+int main(void)
+{
+	set_sleep_mode(SLEEP_MODE_PWR_DOWN);
+	sleep_enable();
+	sleep_cpu();
+	return 0;
+}
\ No newline at end of file