Arduino Pro Micro ATmega32U4-AU 5V/16MHz Module with Type-C USB

From the shop's description

PRO Micro ー Miniature Arduino-compatible board based on the ATMega32u4 microcontroller. Its dimensions are 33×18 mm. At the same time, it has 12 GPIO pins, 5 of which support PWM, 4 analog ports, UART, SPI and I2C interfaces. For power and connection to a PC, a two-way Type-C port is used. The board can be powered both from the USB port and from an external power source with a voltage of 6 to 12V. In this case, the power is connected to the RAW pin. Characteristics: microcontroller ATMega32u4 Supply voltage 5 V Digital input/output pins 12 PWM channels 5 Analog input pins 4 DC current through input/output pins 40 mA Flash memory 32 KB (ATmega32u4) SRAM RAM 2.5 Kb Non-volatile memory EEPROM 1 Kb Clock frequency 16 MHz Length 35 mm Width 18 mm Package Includes: Pro Micro 5V/16Mhz 2 x Male Header Strips Key Features of PRO MICRO 5V/16MHZ: ATmega32U4 processor running at 16MHz Built-in serial to USB converter 32KB Flash memory 12 Digital I/O 5 PWM shared with the digital I/O 5V Operation Extremely small size