Adafruit QT Py ESP32-S2 WiFi Dev Board with uFL Antenna Port [STEMMA QT] : ID 5348 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Electrokit Sweden AB – Elektronikmässan
Adafruit TS3USB30 1 to 2 USB Switch : ID 5871 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Electrokit: Power Utility Toolkit-The Overview: Best Practices in Electric Power Distribution Companies in the Latin America and Caribbean Region
Bitwig Studio 5 Music Production and Performance BIT-350-007 B&H
Project report - Push button sensor - HackMD
Electret Microphone ø9.7 x 6.7 mm – Thonk – DIY Synthesizer Kits & Components