The Rubber Duckies Interactive Light is a children’s bedside nightlight and toy that affords three modes of functionality: a soothing pulsing glow, a fun blinking sequence whose speed is controlled by the user via a dial on the base, and a brighter consistent-on mode that provides more light if the user needs to get out of bed in the middle of the night and wants a little light to guide their way. It is built using LEDs and an Arduino and is fully enclosed with a 9V battery.
The lights in the nightlight are triggered by a photoresistor that is hidden under the white dome—when the lights are on, the toy is inactive. But when the lights are dimmed or turned off completely, the toy becomes an interactive light show for the child to play with.
The child can change the frequency of the randomized light pattern using the dial on the base of the enclosure, and whenever they’ve had enough (or their parents tell them its time to go to bed!) turning the dial all the way “down” or counter-clockwise changes the mode of the toy to a subtle light that fades in and out with just enough power to give a nightlight-level of glow. For increased functionality, if the child needs to get up at night, turning the dial fully clockwise turns on the brighter steady light to allow for safe passage to the doorway.