Creates a readable string of the current date. Can select between long format: Januray 1st, 2014 or two short formats:

Turns on (i.e. unblanks) the LCD.

Get the distance in centimeters with floating point operations. It returns a float

Get the distance in milimeters without floating point operations.

Function that makes an HTTP GET request to the API, parses the JSON response, and prints the date and time

Reads the temperature from the DS3231's temperature registers. Returns the temperature as a float in Celsius.

Reads the temperature from the DS3231's temperature registers. Returns the temperature as a float in Celsius.

Allows the hal layer to turn the backlight off. If desired, a derived HAL class will implement this function.

Allows the hal layer to turn the backlight on. If desired, a derived HAL class will implement this function.

Writes a command to the LCD. Data is latched on the falling edge of E.

Causes the cursor to be hidden.

HTTP basic authentication base64 encoding function

Register the basic authentication URI handler

Create a readable string of the current latitude data :return: string

Create a readable string of the current longitude data :return: string

Sample luminance (in lux), using specified sensor mode.

Sample luminance (in lux), using specified sensor mode.