PIKOCUBE - WiFi-controlled programmable dice composed of 54 LEDs

PIKOCUBE is a very interesting project. It is a programmable dice with 54 LEDs, a gyroscope, and supports WiFi control. All project information is public, including PCB drawings, structural design, Arduino code, and host computer software.
You only need to press a button to start playing with the dice. Once the dice are powered on, pressing the button again enables WiFi and connects to a predefined network. Later, you can use the Blynk APP to control the dice.
This dice mainly consists of an ESP8285-01F, six PCBs and 54 LEDs. Its structural design is very clever, and the exquisiteness of the structure is also reflected in the production process.
Introduction to the main components of PIKOCUBE:
1. The internal gyro sensor can detect movement and the position of the dice.
2. The size of WiFi MCU is 10×12mm.
3. There is a 150mAh lithium battery and charging circuit next to the controller inside the dice.
4. The size of each PCB board is 25×25mm, including nine WS2812-2020 mini LED pixels.
5. There is a 150mAh lithium battery and charging circuit next to the controller inside the dice.