Features:
-Microcontroller : ATmega32u4
-Operating Voltage : 5V
-Input Voltage : 5V through flat cable
-Digital I/O Pins : 5
-PWM Channels : 6
-Analog Input Channels : 4 (of the Digital I/O pins)
-Analog Input Channels (multiplexed) : 8
-DC Current per I/O Pin : 40 mA
-Flash Memory : 32 KB (ATmega32u4) of which 4 KB used by bootloader
-SRAM : 2.5 KB (ATmega32u4)
-EEPROM (internal) : 1 KB (ATmega32u4)
-EEPROM (external) : 512 Kbit (I2C)
-Clock Speed : 16 MHz
-Keypad : 5 keys
-Knob : potentiomenter attached to analog pin