device-lab2

Part B. Setting up & Writing to the LCD

The LCD was soldered and connected as shown in the picture below [Image of the LCD+breadboard]

B.(a) What voltage level do you need to power your display?

For powering the display logic (Pin No. VDD) we are using 5V

B.(b) What voltage level do you need to power the display backlight?

For the backlight we are using (as per Pin 15) 3.3V

B.(c) What was one mistake you made when wiring up the display? How did you fix it?

Everything was connected and the display was not displaying anything. I checked again it was a contrast issue with the potentiometer.

B.(d) What line of code do you need to change to make it flash your name instead of "Hello World"?

the line lcd.print controls the text being displayed. I changed it from :
lcd.print("Hellow World!");
to
lcd.print("Its Ankit!");

B.(e) Include a copy of your Lowly Multimeter code in your lab write-up.

[Image of the LCD showing result]

View Code Used

C. Rotary Encoder Setup

Video of Implementation

D. Make your arduino sing

Part D.(a) How would you change the code to make the song play twice as fast?

By Changing this line of code from :
int noteDuration = 1000 / noteDurations[thisNote]
to
int noteDuration = 500 / noteDurations[thisNote]
essential halving the note duration

Part D.(b) What song is playing?

Its from the Star Wars OST, possibly the main theme song!

E. Make your own timer

My timer is a countdown for Tom to setup a funbomb. Tom initially sets the countdown time enough for him to reach a safe distance. Then he waits for jerry and the countdown to go BOOM!

View Code View Video [Circuit Design]