Added solutions for many of the first exercises

1 files changed, 12 insertions, 10 deletions

diff --git a/sem4/embedded/m1/int/int.ino b/sem4/embedded/m1/int/int.ino
index 8978be7..c4a2c31 100644
--- a/sem4/embedded/m1/int/int.ino
+++ b/sem4/embedded/m1/int/int.ino
@@ -4,19 +4,21 @@
 #define DEBOUNCE 1
 
 ISR(INT0_vect) {
-	static bool state = 0;
+    static unsigned long last = 0;
 
-	// Toggle LEDPIN
-	digitalWrite(LEDPIN, state);
-	state = !state;
+    unsigned long now = millis();
+    if (now - last < 100) {
+        return;
+    }
+    last = now;
+
+	static unsigned char state = 0;
 
-	/*
-	for(long i = 0; i < 1000; i++) {
-		Serial.print("Hej ");
-		Serial.println(i);
+	// Toggle LEDPIN
+	digitalWrite(LEDPIN, state % 2 == 0);
+	state++;
+    Serial.print("Hej "); Serial.println(state);
 
-	}
-	*/
 }
 
 void setup() {