Welcome to the personal website of James O’Toole, with art and writing about computers and software.

Chaise Longue

Chaise Longue

A female nude figure lounges in an abstract place.

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Two Spiders

Feb 2 2018
Two Spiders

A still life, featuring a variety of man-made objects.

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The Learning Line Follower

Mar 1 2020

Be warned, this tale is a tragedy. For Christmas, my father bought me an Arduino robot kit with 4 wheels some eyes and ears. It came with light (and sonar) sensors. I decided to conduct supervised learning with a Markov chain model. Two front light sensor point vertically down, reading the grounds ability to reflect infrared light. The kit came with black tape to lay on the floor. I aimed to teach the robot to follow the line, programming it to remember 1KB: a weighted guess at a set of movements given the last two things it saw (input reads).

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