Update housing and code

--add local timezone
--add sunrise/sunset calculation and LED illumination accordingly
--remove touch sensor check
--change mqtt messages

FingerprintDoorbell/lib/SparkFun_SX1509/examples/blink/blink.ino

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+/*************************************************************
+blink.ino
+SparkFun SX1509 I/O Expander Example: blink output
+Jim Lindblom @ SparkFun Electronics
+Original Creation Date: September 21, 2015
+https://github.com/sparkfun/SparkFun_SX1509_Arduino_Library
+
+This example demonstrates the SX1509's set-it-and-forget-it
+blink function. We'll set the pin up as an OUTPUT, and call
+io.blink() all in setup(), then watch the LED blink by itself
+in loop().
+
+Hardware Hookup:
+	SX1509 Breakout ------ Arduino -------- Breadboard
+	      GND -------------- GND
+	      3V3 -------------- 3.3V
+		  SDA ------------ SDA (A4)
+		  SCL ------------ SCL (A5)
+		  15 -------------------------------- LED+
+		                                 LED- -/\/\/\- GND
+                                                330
+
+Development environment specifics:
+	IDE: Arduino 1.6.5
+	Hardware Platform: Arduino Uno
+	SX1509 Breakout Version: v2.0
+
+This code is beerware; if you see me (or any other SparkFun 
+employee) at the local, and you've found our code helpful, 
+please buy us a round!
+
+Distributed as-is; no warranty is given.
+*************************************************************/
+
+#include <Wire.h>           // Include the I2C library (required)
+#include <SparkFunSX1509.h> //Click here for the library: http://librarymanager/All#SparkFun_SX1509
+
+// SX1509 I2C address (set by ADDR1 and ADDR0 (00 by default):
+const byte SX1509_ADDRESS = 0x3E; // SX1509 I2C address
+SX1509 io;                        // Create an SX1509 object to be used throughout
+
+// SX1509 Pin definition:
+const byte SX1509_LED_PIN = 15; // LED to SX1509's pin 15
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println("SX1509 Example");
+
+  Wire.begin();
+
+  // Call io.begin(<address>) to initialize the SX1509. If it
+  // successfully communicates, it'll return 1.
+  if (io.begin(SX1509_ADDRESS) == false)
+  {
+    Serial.println("Failed to communicate. Check wiring and address of SX1509.");
+    while (1)
+      ; // If we fail to communicate, loop forever.
+  }
+
+  // Set up the SX1509's clock to use the internal 2MHz
+  // oscillator. The second parameter divides the oscillator
+  // clock to generate a slower LED clock. 4 divides the 2MHz
+  // clock by 2 ^ (4-1) (8, ie. 250kHz). The divider parameter
+  // can be anywhere between 1-7.
+  io.clock(INTERNAL_CLOCK_2MHZ, 4);
+
+  io.pinMode(SX1509_LED_PIN, OUTPUT); // Set LED pin to OUTPUT
+
+  // Blink the LED pin -- ~1000 ms LOW, ~500 ms HIGH:
+  io.blink(SX1509_LED_PIN, 1000, 500);
+  // The timing parameters are in milliseconds, but they
+  // aren't 100% exact. The library will estimate to try to
+  // get them as close as possible. Play with the clock
+  // divider to maybe get more accurate timing.
+}
+
+void loop()
+{
+  // Relax! The SX1509's got this...
+}