1 🧘‍♂️ Tools and Preparation

"A beard well lathered is half shaved." 🪒

1.1. Preparation

Prepare a clean desk and some small boxes to unzip the package. Take a picture of the kit contents in case you lost something later.

It’s better to work in a room without carpet or textured mosaic. Little screws and springs can magically hide themselves if dropped onto the ground.

1.2. Tools and accessories




Utility knife

Cut the tabs holding the wooden puzzle pieces

Sanding paper/foam

Remove pointy fibers

Flat and Phillips screwdrivers

For M2 (diameter = 2mm) screws

Computer with Arduino IDE

Install the latest Arduino IDE

USB to mini USB cable

Connect the uploader to computer. Not micro USB

2 x 14500 3.7V Li-ion batteries

Don’t mix with regular AA batteries (1.5V)!

The capacity should be around 800mAh.

Smart charger for batteries

Wrong charger may cause danger!




Soldering iron w/ accessories

Solder the decorative LED to ultrasound sensor

HC-05 bluetooth module

Wirelessly upload sketch and communicate

Color paints

Give your Nybble a unique look

3D printer w/ accessories

Add your special design

Arduino/Raspberry Pi kit

Add more gadgets to Nybble


Test and debug


Test and debug

Hot glue/super glue

Avoid using them. OpenCat is designed to be soft!