26-12-2012, 11:53 AM
STEPPER MOTOR INTERFACE USING 8085 MICROPROCESSOR
1STEPPER MOTOR.doc (Size: 141 KB / Downloads: 105)
AIM:
The aim of the project is to demonstrate the forward/reverse stepped motions of a stepper motor, using 8085 microprocessor.
PROJECT DESCRIPTION:
The stepper motors have immense applications in printing, Industrial Robotics, Precision tool motions in drilling, cutting and shaping machines, lathe etc.
This project is proposed to demonstrate interfacing of stepper motor to 8085 microprocessor and to run it in continuous or stepped motion in forward or reverse direction under program control, using 8085 microprocessor.
HARDWARE DESCRIPTION:
The hardware setup consists of a microprocessor motherboard and stepper motor interface board. The motherboard consists of 8085 MPU, 8KB EPROM, 8KB RAM, Keyboard and display controller 8279, 21-key Hex-keypad and six numbers of seven segment LEDs and Bus Expansion connector. The stepper motor interface consists of driver transistors for stepper motor windings and address decoding circuit. The microprocessor output the binary sequence through data bus, which are converted to current pulses by the driver transistors and used to drive stepper motor. The software for the system is developed in 8085 assembly language.