32 IO pins all leads.
Classic ATmega16 minimum system, save trouble of welding.
Crystal: the round hole socket welding, convenient for buyers to replace crystal oscillator the default 8M oscillator,
Support chip: ATmega16/ATmega32 chip and pin and the compatibility of chip
Power supply: power adapter power connector or expanding pin power supply (does not support ISP download interface power supply)
DC-005 power socket (supporting the transposon 5.5*2.1)
Outside the extended 4 road VCC, GND, as shown in the alignment shown
Reset:Power on reset and button reset
Standard ISP interface to download
1X AVR Minimum System Board