Iteaduino Leonardo

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Overview

Iteaduino Leonardo1.jpg

Iteaduino Leonardo is a microcontroller board based on the ATmega32u4, it's 100% campatible with Arduino Leonardo. It has 20 digital input/output pins, 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; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.

Iteaduino Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port. It also has other implications for the behavior of the board.

Features

  • Efficient DC-DC Power supply with wide range input.
  • 3.3V/5V Operating Voltage selection
  • All pins out for Sensor and Servo
  • UART/IIC interface breakout
  • All electronic brick socket are broken out

Spec

Microprocessor ATmega32U4
PCB Size 68.58mm X 58.42mm X 1.6mm
Indicators Power,TX,RX,L
Power supply(recommended) 7-23V DC
Power supply(limits) 23 VDC(max)
Communication Protocol UART,SPI,IIC
Clock Speed 16MHz
RoHS Yes

Electrical Characteristics

Specification Min Type Max Unit
Input voltage 7 - 23 VDC
Operating Voltage - 3.3/5 - VDC
DC Current per I/O Pin - 40 - mA

Hardware

Iteaduino Leonardo.jpg

Digital/Servo Interface: D0~D13 pin

Sensor Interface: A0 A1 A2 A3 A4 A5 pin

Pin Map

Index Name of Arduino Alternate Function Pin of Atmega32u4
1 D0 UART DIN PD2
2 D1 UART DOUT PD3
3 D2 IIC_SDA PD1
4 D3 IIC_SCL/PWM PD0
5 D4 External Interrupt 0/A6 PD4
6 D5 External Interrupt 1/PWM PC5
7 D6 PWM PD7
8 D7 A7 PE6
9 D8 A8 PB4
10 D9 PWM/A9 PB5
11 D10 PWM/A10 PB6
12 D11 PWM PB7
13 D12 A11 PD6
14 D13 PWM PC7
15 A0 PF7
16 A1 PF6
17 A2 PF5
18 A3 PF4
19 A4 PF1
20 A5 PF0

Power Supply

Memory

Input and Output

Communication

Programming

Automatic (Software) Reset and Bootloader

Initiation

USB Over-current Protection

Physical Characteristics

Download

Datasheet for Iteaduino Leonardo

Schematic for Iteaduino Leonardo

Fritzing Parts for Iteaduino Leonardo

Useful Link

<Fritzing Parts: ITEAD Development Board>