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LED Display

The device comprises two parts: LED control board and LED display board. The two PCBs are designed to fit together one behind the other using two sets of dual row connectors and 4 spacers. One of this connector is used for the electrical connections, while the other is only used as a mechanical connecting element.

 

The core of the device is microcontroller PIC18F252 (U9). It controls all the functions of the device, generates the overall algorithm to control the LED matrix. LEDs are connected in matrix 40x7. The columns tie together the cathodes of the LEDs and rows tie the LEDs anodes. The LED matrix is controlled dynamically in row by row.

 

                                                    

 

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