Edison Jr.

Edison Jr. provides a free, open source, and cross platform virtual alternative to physical experiment boards.

Please note is a fork from the original here. I wanted to have this project on GitHub. More information about this can be found here.

It currently works on:

• Mac OSX
• Linux (Tested on Ubuntu)

Prerequisites

For a complete guide to install MiniAT go to miniat.org

• SDL2
• MiniAT

Make sure you are able to run the example on miniat.org before you run Edison Jr.

Download Edison Jr.

Using Git:

• Clone it into your systems directory of MiniAT miniat/system/
cd ~/miniat/systems/
git clone https://bitbucket.org/miniat_amos/edison_jr.git

Environment paths for Edison Jr.

Edison Jr. requires the user to add a path to the image directory.

Temporary path

Bash:

• Add the image path which Edison Jr. uses
  export EDISON_PATH=~/miniat/system/edison_jr/SDL/images/

Tcsh:

• Add the image path
  setenv EDISON_PATH ~/miniat/system/edison_jr/SDL/images/

If your wish to have this path added every time you are in terminal then add the command to your .bash_profile, .bashrc, or .profile file

Running Edison Jr. Examples

• Run the command from your miniat dir
• First test and see if Edison Jr. loads
  miniat_edisonJr out/bin/hello_world.bin
• Now to run the example that has some functionality
  miniat_edisonJr out/bin/example1.bin
• You can also run our segment display test
  miniat_edisonJr out/bin/testssd.bin

Address Scheme

LCD

Address	Command	Description
0x4040	LCD X	Moves cursor X position
0x4041	LCD Y	Moves cursor Y position
0x4042	LCD CHAR	Puts char in cursor position

4 - Seven Segment Display

Address	Command	Description
0x4010	Segment 1	Input state of the 8 states
0x4011	Segment 2	Input state of the 8 states
0x4012	Segment 3	Input state of the 8 states
0x4013	Segment 4	Input state of the 8 states

LED Matrix

Address	Command	Description
0x4000	Matrix X	Sets/gets X coordinate of cursor
0x4001	Matrix Y	Sets/gets Y coordinate of cursor
0x4002	Color	Gets color under x,y coordinate
0x4003	Circle	Lights up all LEDs in a Circle
0x4004	Square	Lights up all LEDs in a square

Buttons

Address	Command	Description
0x4020	Read Button	Returns the state of the button in binary

DIP Switch

Address	Command	Description
0x4030	Read DIP Switch	Returns the state of the DIP Switch in binary