What is it?

A used board from an old 10 digits display with 10 seven segment indicators which are controlled via at89c2051. There are 5 connections on the board, one vcc other ground and 3 go to GPIO pions of at89c2051.

To make it work:

• You can do a reverse engineering to find out which signal is sent to at89c2051 and display numbers on the seven segment indicators,
• Or you can try to reprogram the at89c2051 microcontroller,
• Or you can desolder the at89c2051 microcontroller, solder pinheaders and drive the display with your Arduino board,
• In the worst case, you can desolder the indicators and use them separately :)

What you get:

• A board with ten seven segment indicators for your projects.
• All the boards have 10 indicators and at89c2051 microcontroller.
• Some boards have smd capacitors other boards have thd capacitors and parts, but they all work the same way.

I ship a random board when you order. The price is for a single board.