SainSmart Leonardo R3

SainSmart Leonardo R3

The SainSmart Leonardo is a microcontroller development 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 microUSB connection, a power jack, an ICSP header, and a reset button.

Another faithful reproduction by SainSmart. The Leonardo is different than other Arduinos in the way it connects to the computer. It has USB code in the ATmega32U4 that replaces the FTDI USB chip, or the external ATmega16U2 USB converter from the Uno R3. It can appear to be a serial port, or an HID class USB device.

SainSmart Leonardo R3
MCU ATmega32U4
DigitalPins 20
Analog Inputs 12
Analog Outputs 0
Operating Voltage 5
Operating Frequency 16MHz
3.3V Output 50mA
Test Current Draw
Web Site SainSmart
  1. Information from manufacturers and other sources.
  2. Test current from sketch that exercises I2C, SPI, and analog pins.
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