InteractiveMatrix

An embedded c++ platformio project for a low resolution interactive screen made from LED-strips.

Hardware

Microcontroller

• Arduino Mega 2560

Periphery

• Adafruit LED strips
• Joystick
• rotary switch
• SD card reader

Wiring Table

Label	From	To	Description
1	+	5V	serves microcontroller with power
2	-	GND	microcontroller ground current
3	LED	6	information flow between LED and microcontroller
4	LED	-	LED ground current
5	power supply	-	5V current source
6	power supply	+	ground current source
7	joystick	-	serves joystick with power
8	joystick	+	joystick ground current
9	joystick	A0	joystick x
10	joystick	A1	joystick y
11	joystick	A3	joystick trigger
12	joystick	A4	joystick buttons

+: refers to the 5V line on the breadboard
-: refers to the common ground line on the breadboard

Dependencies

These should bes resolved via the Platformio library manager.

• FastLED_NeoMatrix

Pictures

Add pictures or gifs from the project here.

Chatsheet

Useful Links

• GFX drawing functions, e.g. fillRect
• description of the macros, that describe the matrix built
• online tool for ttf to gfx readable font header

Project Structure

InteractiveMatrix
 ├── .pio     # external libraries, managed by PIO
 ├── include  # project header files
 │    ├── consts  # e.g. configuration for different hardware prototypes
 │    ├── fonts   # bitmap encoded fonts
 │    ├── snake   # code with snake game components
 │    └── README.md
 ├── lib  # project specific (private) libraries
 │    ├── ... 
 │    ├── InteractiveMatrix   # builds on FastLED for our specific use case
 │    └── README.md
 ├── src
 │    └── InteractiveMatrix.ino   # main application
 ├── test
 ├── .gitignore
 ├── platformio.ini  # project metadata
 └── README.md

TODO

• when creating an InteractiveMatrix specify periphery objects, e.g. controller (maybe setter functions, e.g. matrix->setController())