Micro Processor Device Controller

* Sequence control of 8 LEDs through 8255 port
* Control of 2 relays
* Operating a 7-segment display
* Switch state input through 8255 port
* SID/SOD Operation

Introduction :
This unit has been designed to train the students to handle basic input-output operations of the 8085 microprocessor through 8255 ports. The power supply, drivers and other hardware are prewired resulting in a greater reliability of operation. The students are expected to enter a few suggested programs and also to develop their own programs for a variety of input-output operations, which include :

* Light the 8 LEDs in a cycle, in binary sequence, as a bar graph display etc.
* Operate the 2 relays with software controlled timing
* Operate the 7-segment display through segment control
* Sense the state of the 4-switches as input and send out suitable signals to various output devices.
* Study of SID/SOD