This box makes scary noises and has glowing red eyes that turn on when the lights go out. Put it under a bed or desk to prank your friends (or colleagues)!
You could also change the type of sensor to make a motion- or proximity-activated monster for a haunted house.
The box contains an Arduino Uno, a recording/sound module, a servo, and a pair of LEDs. A phototransistor lets you measure the light in the room and know when the lights go out.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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