"Little Friend" was running around getting exercise (I was clocking run time with specific electrical load) when I exercised bad judgment as a parent.
"Little Friend" was at least 50 feet away from the stairs--around a couple of corners. I turned my back to work on gluing pieces of a project. It took less than a minute.
BANG, THUD, THUD, THUD, CRASH !!!
"Little Friend" took the shortest route to the stairs.
One of the wheels no longer runs true--will have to be replaced. Fortunately, there were no short circuits or broken circuit boards.
NEVER let a little one out of your sight unless dangerous spots are adequately secured.
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I think you are right. I keep getting sidetracked--blinking eyeballs and a smiling mouth are more fun (and less practical) to work on than "stair avoidance."
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I believe Roomba vacuums use IR reflectivity sensors against the floor to check for edges like stairs before it's too late.
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