This is a 7-segment display interface module. The purpose of this module is to provide means to learn interfacing program techniques using varieties of controllers. This is an interface module to be operated with any of the Microprocessor trainers, Microcontoller trainer, PIC trainer for embedded applications or to an IBM TTL I/O card for programming.

There are 4 independent displays on this module. It is possible to set any desired number (0 to 9 and special characters) on any one display or a combination of displays or all the four displays by programming a controller. For this purpose, all the BCD signal (4 bit) inputs of each display are available for interface with the controller at its I/O connector. This requires an optional controller for interface purpose and an external power supply of +5V DC@ 250mA is required to power this interface module