First testing tool for your LEDs and your Switches

tools/testing/testing.ino

@@ -0,0 +1,24 @@
+void setup() {
+  Serial.begin(9600);
+  for(int i=22; i <= 36; i=i+2) {
+    pinMode(i, INPUT);
+    pinMode(i+1, OUTPUT);
+  }
+  
+  for(int i=22; i <= 36; i=i+2) {
+    digitalWrite(i+1, HIGH);   // turn the LED on (HIGH is the voltage level)
+    delay(100);               // wait for a second
+    digitalWrite(i+1, LOW);   // turn the LED off by making the voltage LOW
+    delay(100);
+  }
+}
+
+void loop() {
+  
+  for(int i=22; i <= 36; i=i+2) {
+    byte actState = digitalRead(i);
+    digitalWrite(i+1, actState);
+    
+
+  }
+}