Controller based on ATmega32u4 for enhanced performance and compatibility Operates at 16 MHz with a recommended input voltage of 7-12V 22 digital I/O ports and 12 analog inputs for versatile connectivity 7 PWM channels for precise control of motors and other devices 32 KB flash memory, 2.5 KB SRAM, and 1 KB EEPROM for ample storage capacity • Controller: ATmega32u4 • Operating MHz: 16 MHz • Operating Voltage: 5V • Digital I/O Ports: 22 (D0-D13, D14-MISO, D15-SCK, D16-MOSI, D18-23[A0-A5]) • Flash Memory: 32 KB (ATmega32u4), of which 4 KB is used by the bootloader • SRAM: 2.5 KB (ATmega32u4) • EEPROM: 1 KB (ATmega32u4) Color: As Shown Material: PCB Package Contents: 1*Development board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.