Allows to turn on and off the LEDs of the screen.
page 1
When the page starts, turn on all LEDs. When a loud sound is detected switch between to page 2
- when
page start, do 
show image with all leds.
- when page start, do
play sound 
hello.
- when
microphone detects 
loud sound, do 
switch page to 
page 2.
page 2
Similar to page 1 but in this case, we turn off all the LEDs.
- when page start, do turn off all LEDs
- when page start, do play sound
yawn
- when microphone detects loud sound, do switch page to page 1.
improvement ideas
- add sounds to notify your user that the command was received