MH Board

ATmega32u4 Microcontroller (MCU)
5V operating voltage
7-12V input voltage (limit)
22 (with 7 providing PWM output) digital I/O pins
D0 , D1 : For Bluetooth
D14, D15 : For Sound Chip
12 analog input pins ( A0 ~ A11 )
40mA DC current per I/O pin
1A DC current for 3.3V pin
32KB Flash memory
2KB SRAM 
1KB EEPROM 
16MHz clock speed
General MIDI Wave 128
Drum Set Table
MIDI control
64 Voice Polyphony
Phone OUT
Aux IN
Battery Connect
Bluetooth 4.0 (Option)

• MH Board x 1