Scrolling Display via RF Connectivity with PC

Figure 1 

The project is focused on providing data to a scrolling LED display coming form a PC via a RF link.

The arrangement of lights is in a grid pattern where all the lights in a column are sharing a positive terminal while a negative terminal is being shared by all the lights in a row. The LEDs are in 48×8 arrangements. Turning ON the column and will is the only thing required to provide lighting. However, a drawback occurs because either only one row of one column may be ON at a time. This can be resolved by looping through the grid from left to right and top to bottom since there are a small number of lights that need to be ON at a time with pins of few amounts.

The scrolling display is split into module boards instead of having one big board and it includes the LED panel consisting of front panels with lights and buttons, LED driver consisting of hardware for switching ON/OFF the columns and rows, and the Processor Board consisting of RF circuitry and microcontroller. Separating into modules provides easiness in replacing or redesigning the required board.

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