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CJMCU-Beetle Leonardo USB ATMEGA32U4 Development Board for Arduino
CJMCU-arduino Leonardo Beetle USB ATMEGA32U4 mini development board Microcontroller ATmega32u4 Clock Speed 16 MHz Operating Voltage 5V DC Digital I/O Pins 10 PWM Channels 4 Analog Input Channels 5 UART 1 I2C 1 Micro USB 1 Flash Memory 32 KB of which 4KB used by bootloader SRAM 2.5 KB EEPROM 1 KB