Keyestudio PRO MICRO 5V 16MHZ ATMEGA32U4-MU Development Board For Arduino

The processor core of Keyestudio PRO MICRO development board is ATMEGA32U4-MU, fully compatible with ARDUINO.
It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable to get started. 

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).
It is easy to integrate this Micro in everyday objects to make them interactive.
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 of yellow 1*12 2.54 straight pins and 1m black micro USB cable.