A bit of fun. This is what a robotic plant looks like, with (white and infrared) LEDs in the flower.
It's name is Himawari (Japanese for sunflower) and its design has apparently been influenced by the motion pattern of sunflowers, with it reacting to human movements. The stalk is driven by servo motors and there are alloy actuators in the head, but it is the reflected light from the white LED tentacles - and infrared LEDs which are used to reflect IR light - that enables movement to be tracked.
Technabob





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