Quantity   Component name
1 × NeoPixel Ring 16xWS2812 LEDs
1 × OLED Display 128x64
1 × ATmega328p on custom PCB Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × PIR Sensor
1 × ESP8266
1 × 3.3V Regulator
1 × LiPo JST