IoT Assignment #6 - Programming on Arduino

This assignment is to be done individually and 
is worth a total of 4% of the final mark.

In this assignment, you will be required to implement a simple calculator
on Arduino board. This calculator takes two integers and an operator as
input and prints the result with the formula. 
Four arithmetic operations are supported: addition, subtraction,
multiplication and modular operation.  '+', '-', '*', '%' signs will be
used as a delimiter so that the Arduino can move onto the second number.
'=' sign will indicate the end of the input, and the Arduino will proceed
the calculation. After each calculation, on-board LED should blink three
times and the result will be sent back. The serial communication interface
can be used to communicate with the board.

<Example>
Input: 
12+23= <Enter>
Result: 
12+23=35

Demonstrate that your program works by capturing Arduino serial monitor screen.

Hand in your source code and demonstration(screenshot) by sending e-mail to noraki_at_postech.ac.kr .

Have fun!