8X8 Matrix LED segment (Not Module)

As given in above table, any 8x8 LED MATRIXwill have EIGHT POSITIVE TERMINALS and EIGHT NEGATIVE TERMINALS.

• EIGHT NEGATIVE TERMINALS are EIGHT COLUMNS.
• EIGHT POSITIVE TERMINALS are EIGHT ROWS.

These 16 PINS are driven out from 64 LED SEGMENTS present in the MODULE. Those 64 SEGMENTS on the MODULE surface are the 64 LEDS arranged in MATRIX formation.

The internal structure of any LED MATRIX MODULE will be same and is shown below.

Note: More technical information can be found in the LED Matrix Datasheet linked at the bottom of this page.

How to solve PIN CONFIGURATION Issue

As shown above, the POSITIVE and NEGITIVE PINS of MATRIX MODULE are irregular and may lead to problems while controlling the LEDs. This issue becomes even more complex when choosing a different MODULE. The best way to solve these problems is rearrange the terminals based on FUNCTION of PIN instead of PIN NUMBER. After rearranging the PINS, we will have something as below.

As shown in figure, by rearranging the EIGHT ROWS or POSITIVE and EIGHT COLUMNS or NEGATIVE we can completely eliminate the problem of PIN CONFIGURATION. As every module will have same ROWS and COLUMN even if MODULE outlets are random.

8x8 LED MATRIX MODULE Features and Specifications

• Forward Voltage for EACH SEGMENT or LED turning ON: 1.5V-2.0V (2.0V being absolute  maximum forward voltage)
• EACH SEGMENT or LED Forward Current during ON: 10mA - 15mA (Typically 10mA, 15mA being absolute maximum forward current)
• EACH SEGMENT or LED Reverse Voltage Maximum: 5V
• Maximum operating temperature: - 25°C to + 60°