16×16 serial dot matrix led display module (screen)

Principle:

• Each row consists of two 74HC138 decoder composed of 4-16 + transistor drive
• Each column cascade driven by the two 74HC595; When the line output high, low column output crosspoint LED is lit; 3 LCD12864 compatible interfaces, plug and play.

The module consists of four 8x8 dot-matrix LED, 2 argument string into and out of the column control chip 74HC595, 74HC138 2 decoding chip to control the composition of the line, while retaining the 8 control port draw through the pin.

You can use the female-female provided cables to connect it to your micro-controller.