Velleman VMA103: ATmega32U4 Leonardo Development Board

Features

The VMA103 (Arduino® Compatible leonardo) is a microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 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; 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® LEONARDO

Specifications

• microcontroller: ATmega32u4
• operating voltage: 5 VDC
• input voltage (recommended): 7-12 VDC
• input voltage (limits): 6-20 VDC
• digital I/O pins: 20
• analogue 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)