Last Updated: May 25, 2016
BrightSign players support eight GPIO connections by default (eight buttons, eight LEDs, or any combination of buttons or LEDs that adds up to eight). The GPIO port requires a simple contact closure connection. For an explanation of the different GPIO button pins and grounds, please consult the Hardware Interfaces documentation for your player model.
Each button/LED must be connected to a GPIO pin and to ground.
Note: You can use a 3rd Party Partner control board to connect more than eight buttons/LEDs, support higher voltage LEDs, or use other outputs.
Attached are two diagrams showing how four buttons and four LEDs, as well as three buttons and three LEDs, would be wired. Additionally, the PV4 document shows an example of a low-voltage button that only requires 3.3v for its LED.