More comments, cleanups and added LICENSE and README.

Digispark_Passkey/Blinker/src/Blinker.cpp

@@ -0,0 +1,44 @@
+#include <Blinker.h>
+
+Blinker::Blinker(int pin) {
+    _blinkPin = pin;
+    _highDelay = 500;
+    _lowDelay = 500;
+    _lastBlink = 0;
+    _blinkState = false;
+    _running = false;
+}
+
+void Blinker::setDelay(uint32_t d) {
+    _highDelay = d;
+    _lowDelay = d;
+}
+
+void Blinker::setDelay(uint32_t h, uint32_t l) {
+    _highDelay = h;
+    _lowDelay = l;
+}
+
+void Blinker::blink() {
+    uint32_t diff = millis() - _lastBlink;
+    uint32_t blinkDelay = _blinkState ? _highDelay : _lowDelay;
+    if (diff >= blinkDelay) {
+        _lastBlink = millis() - (diff - blinkDelay); // Account for any delay in calling blink
+        _blinkState = !_blinkState;
+        if (_running) {
+            digitalWrite(_blinkPin, _blinkState ? HIGH : LOW);
+        }
+    }
+}
+
+void Blinker::start() {
+    pinMode(_blinkPin, OUTPUT);
+    _running = true;
+    _lastBlink = millis();
+}
+
+void Blinker::stop(bool idleState) {
+    _running = false;
+    _blinkState = idleState;
+    digitalWrite(_blinkPin, _blinkState);
+}

Digispark_Passkey/Blinker/src/Blinker.h

@@ -0,0 +1,28 @@
+#ifndef _BLINKER_H
+#define _BLINKER_H
+
+#if (ARDUINO >= 100)
+# include <Arduino.h>
+#else
+# include <WProgram.h>
+#endif
+
+class Blinker {
+	private:
+        int _blinkPin;
+        uint32_t _highDelay;
+        uint32_t _lowDelay;
+        uint32_t _lastBlink;
+        boolean _blinkState;
+        boolean _running;
+
+	public:
+		Blinker(int pin);
+		void setDelay(uint32_t d);
+		void setDelay(uint32_t h, uint32_t l);
+        void blink();
+        void start();
+        void stop(bool idleState = LOW);
+};
+
+#endif