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Built this little guy for a mate of mine.The main housing is from a speaker set designed to plug directly into a small MP3 player. The base is a machined aluminium tape head from an old-school VHS player.As far as behaviour goes, TemPoe tries to align its solar panels with the strongest incoming light to keep its cells charged. The 2 LDR photocouples on the back allow for light tracking, while a single LDR inside the case monitors ambient light levels so TemPoe can 'sleep' if there isn't enough light ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/tempoe