The TTGO T-Koala from LilyGO is a microcontroller based on an ESP32. The CH340 USB to serial converter makes it easy to program, even as an Arduino. The board has a USB-C connection with which it can be programmed and/or powered (the USB-C cable is not included).
TTGO T-Koala.To program the board with the Arduino IDE select the 'ESP32 Wrover Module' in the board manager.
The pins on the board are directly connected to the ESP32 chip and are therefore only suitable for 3.3V signals.