******************
ANALOG OPERATIONS
******************

ANALOG INPUTS
==============
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What are Analog signals?
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An Analog signal is a time varying signals which can take any value between a specific range and is defined at each point of time.

What are digital signals?
=========================
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Digital signals are the signals which have a finite set of possible values and they cannot take any other value.

What is ADC?
=============
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It stands for **Analog to Digital Converter**

Analog to Digital converter(ADC)
================================
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Way to convert an analog value to a digital value in Arduino

 5   ------> 1023
 1   ------> 1023 / 5

 3   ------> (1023/5)*3 = 614

Light Dependent Resistor (LDR)
==============================
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As it's obvious from the name, LDR or a photoresistor is a resistor which changes its resistance value depending upon the intensity of light which falls on it.

Variable Voltage Divider from LDR
=================================
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POTENTIOMETER
=============
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A potentiometer is a three terminal device with which enables us to vary the resistance to make a voltage divider.

Potentiometer as a Analog Input
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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NTC Thermistors
===============
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A thermistor is a resistor whose resistance depends upon the temperature of the environment it is kept in. NTC is acronym for “Negative Temperature Coefficient”. Thus, NTC Thermistor is a device whose resistance decreases with increase in temperature.

NTC as an Analog Input
^^^^^^^^^^^^^^^^^^^^^^^^
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NAVIGATION KEYS 
===============
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EXERCISE: 
=========
- To display ADC value from potentiometer on SSD

HARDWARE
=========
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SOFTWARE
=========
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