Tag Archives: ping pong

Object detection by photocell

A photocell is a poor substitute for a camera, but it’s a lot cheaper too. So the question for grisbot is whether a photocell is sufficient to detect an object nearby. Here’s one possible solution. Suppose an object — say, … Continue reading

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Informal Testing of Potential Ideas

Tonight I tested out a couple ideas for where to go next with Grisbot. On the right, I was working with the good old photocell testbed, which I connected to Arduino analog input A0 and measured the light reflected off … Continue reading

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