Archiving a bunch of old stuff

oldstuff/arduino/msaqsg/ch01/HelloWorld/HelloWorld.ino

@@ -0,0 +1,27 @@
+const unsigned int LED_PIN = 13;
+const unsigned int PAUSE = 700;
+const unsigned int FLASH_DURATION = 100;
+
+
+void flash(int n) {
+    for (int i = 0; i < n; i++) {
+        digitalWrite(LED_PIN, HIGH);
+        delay(FLASH_DURATION);
+        digitalWrite(LED_PIN, LOW);
+        delay(FLASH_DURATION);
+    }
+}
+
+
+void setup() {
+    pinMode(LED_PIN, OUTPUT);
+}
+
+
+void loop() {
+    for (int i = 1; i < 4; i++) {
+        flash(i);
+        delay(PAUSE);
+    }
+    delay(PAUSE);
+}

oldstuff/arduino/msaqsg/ch01/HelloWorld/Makefile

@@ -0,0 +1 @@
+../../../arduino.mk