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/digitalRead/digitalRead.ino

@@ -0,0 +1,88 @@
+/*************************************************************
+digitalRead.ino
+SparkFun SX1509 I/O Expander Example: digital in (digitalRead)
+Jim Lindblom @ SparkFun Electronics
+Original Creation Date: September 21, 2015
+https://github.com/sparkfun/SparkFun_SX1509_Arduino_Library
+
+This example demonstrates the SX1509's digitalRead
+functionality. A pin can either be set as an INPUT or
+INPUT_PULLUP. We'll attach an active-low button to an 
+INPUT_PULLUP input, then whenever the button read's LOW, we'll
+read the state of another INPUT pin.
+
+After uploading the sketch, open your serial monitor and set 
+it to 115200 baud.
+
+Hardware Hookup:
+	SX1509 Breakout ------ Arduino -------- Breadboard
+	      GND -------------- GND
+	      3V3 -------------- 3.3V
+		  SDA ------------ SDA (A4)
+		  SCL ------------ SCL (A5)
+		  0 ---------------------------------]BTN[----GND
+		  8 -----------------------------Jumper (GND or 3.3V)
+
+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 Pins:
+const byte SX1509_BUTTON_PIN = 0; // Active-low button
+const byte SX1509_INPUT_PIN = 8;  // Floating or jumpered input
+
+void setup()
+{
+  // Serial is used in this example to display the input value
+  // of the SX1509_INPUT_PIN input:
+  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.
+  }
+
+  // use io.pinMode(<pin>, <mode>) to set input pins as either
+  // INPUT or INPUT_PULLUP. Set up a floating (or jumpered to
+  // either GND or 3.3V) pin to an INPUT:
+  io.pinMode(SX1509_INPUT_PIN, INPUT);
+  // Use a pull-up resistor on the button's input pin. When
+  // the button is pressed, the pin will be read as LOW:
+  io.pinMode(SX1509_BUTTON_PIN, INPUT_PULLUP);
+}
+
+void loop()
+{
+  // use io.digitalRead(<pin>) to check if an SX1509 input
+  // pin is either HIGH or LOW.
+  if (io.digitalRead(SX1509_BUTTON_PIN) == LOW)
+  {
+    // If the button is pressed (the pin reads LOW)
+    // Print the status of the other pin:
+    Serial.print("SX1509_INPUT_PIN status: ");
+    // Read the pin to print either 0 or 1
+    Serial.println(io.digitalRead(SX1509_INPUT_PIN));
+  }
+}