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Labs / DC Motor Control Using an H-Bridge

Labs / DC Motor Control Using an H-Bridge
Overview In this tutorial, you'll learn how to control a DC motor's direction using an H-bridge. To reverse a DC motor, you need to be able to reverse the direction of the current in the motor. The easiest way to do this is using an H-bridge circuit. There are many different models and brands of H-Bridge. This tutorial uses one of the most basic, a Texas Instruments L293NE or a Texas Instruments SN754410. If you simply want to turn a motor on and off, and don't need to reverse it, for example if you're controlling a fan, try the tutorial on controlling high current loads with transistors. (:toc Table of Contents:) Parts For this lab you'll need: Solderless breadboard 22-AWG hookup wire Arduino Microcontroller module Light Emiting Diodes, LED 10Kohm resistors Switch L293NE or SN754410 H-bridge 12V DC power supply DC Motor Prepare the breadboard Connect power and ground on the breadboard to power and ground from the microcontroller. (Diagram made with Fritzing) Add a Digital Input (a switch) Find a motor

http://itp.nyu.edu/physcomp/Labs/DCMotorControl

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