Quantity   Component name
1 × D-duino https://www.tindie.com/products/lspoplove/d-duino-v2arduino-and-nodemcu-and-esp8266-and-096oled
1 × 18650 battery shield https://www.tindie.com/products/lspoplove/18650-battery-shield-v23v-output-and-5v-output-