USB - ATmega32U4 Board

• Model Number:19j126
• Place of Origin:Guangdong, China
• Brand Name:Chipskey

3.3V 8M USB ATmega32U4 Development Board

Feature:

A microcontroller board based on the ATmega32u4
9 digital input/output pins (of which 4 can be used as PWM outputs and 4 as analog inputs)
An 8 MHz resonator
A micro USB connection
A JST connector for a 3.7V LiPo battery
A reset button
Contains everything needed to support the microcontroller
Simply connect it to a computer with a USB cable or power it with a battery to get started
ATmega32u4 has built-in USB communication, eliminating the need for a separate USB-to-serial adapter. Which allows the USB to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

Specification:

Microcontroller: ATmega32u4
Operating voltage: 3.3V
Input voltage: 3.8V to 5V
Digital I/O pins: 9
PWM channels: 4
Analog input channels: 4
DC current per I/O pin: 40mA
Flash memory: 32KB (ATmega32u4) of which 4KB used by bootloader
SRAM: 2.5KB (ATmega32u4)
EEPROM: 1KB (ATmega32u4)
Clock speed: 8MHz