Nano V3.0 ATmega328P AU MCU, Arduino kompatibel, USB CH340G, 6,90 €
Amazon.com: SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) - Compatible with Arduino development board 5V/16MHz microcontroller AP2112 3.3V Voltage Regulator Castellated PTH pin pads Reset button Maximum 6V input : Electronics
MM930Mini USB MCU Development Module - Bridgetek | Mouser
Tomu: A Microcontroller For Your USB Port | Hackaday
CH552 CH554 USB MCU Mini DEV Board [CH55x Series] – ElectroDragon
CH559 USB MCU Mini DEV Board [CH55x Series] – ElectroDragon
Mackie MCU Pro Expandable USB/MIDI Control Surface MCU PRO B&H
U-ec6 Usb Debug Adapter For C8051f Mcu Compatible With Ec3/ec5 Usb Emulator Downloader Programmer With Usb Cable Jtag Line - Instrument Parts & Accessories - AliExpress
USB Connectivity for MCUs: Which is Right for Your Next Design? | DigiKey
Compact 8-bit MCU boards controlled/powered through USB connection