Project:Sandbox

LED Shield Wiki Page version 1.0 =LED Shield=

About
The LED shield, like the Breakout Shield allows components to be directly soldered to the Brain Jr.. In addition, it allows for the easy wiring of up to 48 LEDs in a 12x4 matrix.

Analog Breakout
cropped close up of analog connections, labeled 'G' Each analog connection has three solder points, V+, Signal, and Ground. Potentiometers, sensors, or other devices with a variable voltage output can be connected to the analog connections. * V+: This is the 5V supply, powered by the USB connection with the computer. Connect this to the first terminal of potentiometers or any device that requires a low voltage power supply to operate. * Signal: This is for connecting the middle pin of potentiometers and the output voltage of any other device. This is the voltage that is converted into MIDI data by the Brain Jr.'s microcontroller. * Ground: Analog connections require a ground or reference voltage to function. This connection is for the third pin of potentiometers or the ground/reference pin on any other device. Each analog connection sends its own MIDI data, and is fully customizable in the Brain Jr. Configure software. Note: On rotary potentiometers, the middle pin is always the wiper and should be connected to the signal solder point. Check the pinout diagram on components you are using to make sure the signal output of the component is connected to the signal input on the shield. 

Digital/Button Breakout
cropped close up of digital connections, labeled 'I' Each digital connection has to solder points, + and -. Buttons, switches, and encoders can be connected to the digital connections. * +: Connect to either terminal of a button or switch, but check diagrams for other devices * -: Connect to either terminal of a button or switch, but check diagrams for other devices For wiring encoders, see the diagram. <tt>insert encoder wiring diagram<tt>

Button Matrix
For wiring an LED matrix, follow the table

Quick Start Tutorial
(forthcoming)