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My initial intention to build robots came out of being a mostly bedridden invalid, as a sort of surrogate set of senses to travel around the house for me, but I got hooked :-). So Fluffy is more of an accident than a robot (or rather, a series of accidents). She's been knocked together from Meccano so as to be easily modifiable, and carries an Arduino Mega 2 (originally a Uno clone, but it died), a a simple H-bridge motor controller and a decent-sized breadboard for experimenting with sensors ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/fluffy-meccano-robot