Hello my name is Aaron and i am trying to complete a project for my senior project class in college. My project idea is to make an autonomous lawn mower that will use encoders to map out your lawn and be able to cut your grass in a way that a human would. I plan to use 2 wheelchair motors and gear boxes for the movement. Two 12v batteries to power these wheelchair motors and an arduino in conjunction with an H-bridge to process directional movement. My question is what kind of H-bridge do i need that can process forward, backward, left, and right movement that can handle two 12v batteries going through it to the wheelchair motors? My second question is if my arduino is wired to the H-bridge and my two 12v batteries are wired to the H-bridge and the H-bridge is powering the wheelchair motors, will the voltage from the batteries go through the H-bridge to my arduino and fry it? If the power would fry my arduino is there something out there that i would need to place between the two 12v batteries and the H-bridge to keep from frying my arduino?
Thank you in advance for the help.
Thank you in advance for the help.