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Topic: Project 10 - What is the benefit of using an H-Bridge? (Read 336 times) previous topic - next topic



First off, thank you for your help!  I'm new to Arduino and working my way through the Starter Kit.  My goal is to eventually make a solar powered robot.

Project 10 utilizes the L293D H-Bridge to send signals to the DC motor.  However, it takes up 3 GPIO pins on the arduino.  Conversely, project 9 doesn't use an HBridge and requires only one GPIO pin.  Even if I were to drive two motors on my robot without an H-Bridge, I would have one pin available for other cool stuff (blinky LED's - mandatory in every cool robot).

My question is: What is the benefit of using an H-Bridge?

As a follow up question: I've noticed some people using continuous servos to maneuver their robots.  Under what circumstances would I use a continuous servo instead of a motor?


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