ATmega32u4 Leonardo Development BoardThe Arduino-compatible VMA103 is a microcontroller board based on the ATmega32u4 and is pin compatible with Arduino Leonardo boards. It has 20 digital input/output pins (7 of which can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller, so all you need to do is connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.Features 100% compatible with Arduino LeonardoSpecifications Microcontroller: ATmega32u4 Operating voltage: 5 VDC Input voltage (recommended): 7-12 VDC Input voltage (limits): 6-20 VDC Digital I/O pins: 20 Analog input pins: 12 PWM channels: 7 DC current per I/O pin: 40 mA DC current for 3.3 V pin: 50 mA Flash memory: 32 kB (ATmega32u4) of which 4 kB used by bootloader SRAM: 2.5 kB (ATmega32u4) EEPROM: 1 kB (ATmega32u4) Clock speed: 16 MHz Length: 2.7" (68.6 mm) Width: 2.1" (53.3 mm) Weight: 0.71 oz. (20 g)
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