Led display matrix using 8051 microcontroller

Display accepts simple string through uart and implements scrolling of the text on LED Matrix display. You can connect microcontrollers directly to update the string or connect to PC to send string to scroll. It supports different scrolling speeds.

It even supports static display of text without scrolling.

Format for sending string is very simple and it can accept maximum of 255 characters of ASCII text. We have provided sample source code for testing with microcontroller as well as details on testing with PC terminal software.

Features

48x8(384 LEDs) 5mm dot size LEDs in Matrix format (8 LED height and 48 LED width)
Operates at 5V (800mA max current)
Can connect directly to microcontroller or PC through RS232/USB
Many Scrolling speed supported.
Static display of characters without scrolling is possible
Internal buffer for 255 characters display
Sample source code for microcontroller to quick start your application.
Pinouts
There are just three pins to use the display.

RX-IN = Receive Input :
Input serial data of 3-5V logic level, Usually connected to TXD pin of microcontrollers/PC/RS232.

Note: Do not connect this pin to direct PC serial port without MAX232. It will damage the display since direct PC serial port has +12V/-12V voltage level.
+5V = Power Input: Regulated 5V supply input. Current has to be capable of atleast 800mA.
GND = Ground level of power supply. Must be common ground with microcontroller.