Quantity   Component name
1 × STM32WB USB Dongle Part of P-NUCLEO-WB55, DigiKey 497-18384-ND
1 × Perfboard Square grid of 0.1 inches, pads on both sides (plate-through holes), 2" x 3.5"
1 × OLED display 0.91" 128x32 pixels
35 × Push button fit in 0.4" grid, Würth 430473035826, DigiKey #732-7021-1-ND
1 × USB Connector or Charger Adafruit Micro-Lipo Charger for LiPo/LiIon Batt w/USB Type C Jack
1 × LiPo battery (optional) e.g. Renata ICP422339PR
1 × Hot glue or double sided mounting tape e.g. Tesa 55750
1 × BAT54C (optional) Double schottky diode