Motor Driver - Digital Electronics and Microprocessors PDF
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Ahmedabad University
Maryam Kaveshgar/Ashok Ranade
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Summary
This document explains motor drivers, including the need for them and the use of an H-bridge driver (L293D). It details circuit diagrams, control signals, and Arduino programming for motor control.
Full Transcript
DIGITAL ELECTRONICS AND MICROPROCESSORS ENR107 Motor driver By Maryam Kaveshgar/Ashok Ranade Current drawn by the motor Maximum current by Arduino output pin is about 40 mA...
DIGITAL ELECTRONICS AND MICROPROCESSORS ENR107 Motor driver By Maryam Kaveshgar/Ashok Ranade Current drawn by the motor Maximum current by Arduino output pin is about 40 mA Hence driver is required Need for a driver A motor might draw current which can not be supplied by Arduino H Driver also provide facilities for direction control With a single supply the direction of current can be controlled through switches With S1 and S4 closed the current through the motor flows from left to right With S3 and S2 closed current flows from right to left H driver L293D Control signals H driver for motor Motor driver with Arduino We use two slide switches One to provide digital input for Enabling the drive Second to provide digital input for direction of rotation Three digital output pins provide signals to Enable and two control pins of drive Circuit Program
