Attiny10 development board USB-C & Micro USB power from Bobricius on Tindie
$10 microcontroller with USB-C, BLE and lipo! : r/ErgoMechKeyboards
Usb Type-c Seeeduino Xiao Microcontroller Samd21 Cortex M0+ Nano 48mhz Spi I2c Interface For Arduino System Development Board - Instrument Parts & Accessories - AliExpress
Mini Usb/micro Usb/type-c Adapter Ch340 Nano V3.0 Atmega328p-mu Atmega328 Microcontroller Module Development Board For Arduino - Integrated Circuits - AliExpress