Castle Drogo, Exeter, England. 2 Sprite players drive 2 projectors for this natural history exhibit in the castle’s cellars. A single Hydra I/O expander unit controls the Sprites and projectors. The system is automatically shut-down to save energy when no visitors are present, and restarted when the system’s PIR motion sensor detects a person nearby.

Castle Drogo, Exeter, England. 2 Sprite players drive 2 projectors for this natural history exhibit in the castle’s cellars.

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