Use a high-voltage AC power source to trigger a Feather microcontroller-driven coffee grinder.

Astound people with a mystery box that will reveal secrets hidden behind its transforming panels!

The powerful, 32-bit, Bluetooth enabled, three-layer robot of the future!

Build an inexpensive, collapsable photo light stage for beautiful project photography

Build a huge timer for an event or race. It's a digital segment display made from RGB NeoPixels!

Level shifters are like little bilingual translators for your electronics!

This Cold War-era mystery box's disarm code must be toggled in before the timer reaches zero!

Part 3: Permanent circuit, 3D printing, and final assembly

When this deck of cards is tossed in the air, it reveals a secret audible Morse code message.

Build your own locking mystery box which can only be opened with a magnet in just the right place!

Part 2: Lights, music, and sound effects prop circuit integration

Lights, music, and sound effects prop circuit design

Create beautiful, expressive light paintings using the Circuit Playground for long exposure photography.

Use this Python script to enable artist-friendly NeoPixel animation on Circuit Playground

Add motion triggered sound and light effects to any prop with Circuit Playground

Create a mad science blacklight test tube rack with fluorescent pigments and ultraviolet LEDs.

Make a DJ controller from conductive paint, cardboard, and a Circuit Playground!

Turn your Circuit Playground into a USB password vault

Keep track of tricky schedules, Monday through Friday!

Chewbacca is a lovable Wookie with a distinctive voice, but here's how to give him a voice transplant and add your own fun sounds to this talking mask

3D print a classic power-up and bring it to life with GEMMA powered NeoPixel LEDs

Make a GEMMA and NeoPixel Pixie Dust Bag