Added ESPilight libs

lib/ESPiLight/examples/Receive_Raw/Receive_Raw.ino

@@ -0,0 +1,43 @@
+/*
+ Basic ESPiLight receive raw (pulse train) signal example
+
+ https://github.com/puuu/espilight
+*/
+
+#include <ESPiLight.h>
+
+#define RECEIVER_PIN 4  // any intterupt able pin
+#define TRANSMITTER_PIN 13
+
+ESPiLight rf(TRANSMITTER_PIN);  // use -1 to disable transmitter
+
+// callback function. It is called on successfully received and parsed rc signal
+void rfRawCallback(const uint16_t* codes, size_t length) {
+  // print pulse lengths
+  Serial.print("RAW signal: ");
+  for (unsigned int i = 0; i < length; i++) {
+    Serial.print(codes[i]);
+    Serial.print(' ');
+  }
+  Serial.println();
+
+  // format of pilight USB Nano
+  String data = rf.pulseTrainToString(codes, length);
+  Serial.print("string format: ");
+  Serial.print(data);
+  Serial.println();
+}
+
+void setup() {
+  Serial.begin(115200);
+  // set callback funktion for raw messages
+  rf.setPulseTrainCallBack(rfRawCallback);
+  // inittilize receiver
+  rf.initReceiver(RECEIVER_PIN);
+}
+
+void loop() {
+  // process input queue and may fire calllback
+  rf.loop();
+  delay(10);
+}