KS0503 Keyestudio PRO MICRO 5V 16MHZ Development Board
The processor core of Keyestudio PRO MICRO development board is ATMEGA32U4-MU, fully compatible with ARDUINO.
It has 18 digital input/output pins (of which 5 can be used as PWM output), 9 analog input, a 16 MHz crystal oscillator and a micro USB port.
In addition, its working voltage is 5V and we can supply power via micro USB cable and port RAW GND (DC 7-9V).
To facilitate the physical design, the board is not welded with pin headers. So you can solder the pin headers by yourself. And the package includes 2pcs yellow 1*12 2.54 straight pins and 1m black micro USB cable.