1 files changed, 32 insertions, 0 deletions
diff --git a/project/Core/Src/Activties/activity9.c b/project/Core/Src/Activties/activity9.c
new file mode 100644
index 0000000..c9f6569
--- /dev/null
+++ b/project/Core/Src/Activties/activity9.c
@@ -0,0 +1,32 @@
+/*
+ * activity9.c
+ *
+ *  Created on: Oct 23, 2025
+ *      Author: sowgro
+ */
+
+#include "GPIO.h"
+#include <stdint.h>
+#include "stm32l4xx.h"
+#include "LED.h"
+#include <stdio.h>
+
+// write a function that prints on/off when the blue button is pressed
+
+void activity9_run() {
+	GPIO_Init();
+	int prev_status = -1;
+	for (;;) {
+		int status = !GPIOC->IDR;
+		if (status != prev_status) {
+			prev_status = status;
+			if (status) {
+				printf("on\r\n");
+				LED_On();
+			} else {
+				printf("off\r\n");
+				LED_Off();
+			}
+		}
+	}
+}