Arduino Leonardo ETH Datasheet: A Comprehensive Guide
The Arduino Leonardo ETH is a microcontroller board based on the ATmega32U4, with an integrated Ethernet module. It’s designed for those who need to connect their Arduino projects to the internet. In this article, we’ll delve into the details of the Arduino Leonardo ETH datasheet, covering its specifications, features, and applications.
Overview of the Arduino Leonardo ETH
The Arduino Leonardo ETH is a compact, powerful board that combines the ease of use of the Arduino platform with the ability to connect to the internet. It’s ideal for IoT (Internet of Things) projects, home automation, and any other application that requires network connectivity.
Physical Specifications
Here’s a table summarizing the physical specifications of the Arduino Leonardo ETH:
| Dimension | Value |
|---|---|
| Length | 68.6mm |
| Width | 53.4mm |
| Height | 20.5mm |
The board has a standard Arduino Uno form factor, which means it’s compatible with most Arduino shields and accessories.
Technical Specifications
Let’s take a closer look at the technical specifications of the Arduino Leonardo ETH:
- Microcontroller: ATmega32U4
- Operating Voltage: 5V
- Input Voltage (recommended): 7-12V
- Input Voltage (limits): 6-20V
- Digital I/O Pins: 20 (of which 7 provide PWM output)
- Analog Input Pins: 12
- DC Current per I/O Pin: 20 mA
- DC Current for 3.3V Pin: 50 mA
- Flash Memory: 32 KB (ATmega32U4) of which 4 KB used by the bootloader
- SRAM: 2.5 KB (ATmega32U4)
- EEPROM: 1 KB (ATmega32U4)
- USB Connection: Full speed
- Programming Interface: USB
- Communication Interface: 10/100Base-TX Ethernet
Ethernet Module
The Arduino Leonardo ETH features an integrated Ethernet module that allows it to connect to a local network or the internet. The module is based on the W5100 chip, which supports TCP/IP, UDP, and SMTP protocols. Here are some key points about the Ethernet module:
- 10/100Base-TX Ethernet: The module supports both 10Base-T and 100Base-TX Ethernet standards, providing fast and reliable network connectivity.
- W5100 Chip: The W5100 chip is a high-performance, full-featured Ethernet controller that simplifies the process of connecting your Arduino to the internet.
- Network Protocols: The module supports TCP/IP, UDP, and SMTP protocols, allowing you to implement various network applications on your Arduino project.
Applications
The Arduino Leonardo ETH is a versatile board that can be used in a wide range of applications. Here are some examples:
- IoT Projects: The board’s Ethernet connectivity makes it an excellent choice for IoT projects, such as home automation, smart cities, and industrial automation.
- Remote Monitoring: You can use the Arduino Leonardo ETH to monitor and control devices remotely, making it ideal for applications like environmental monitoring, security systems, and energy management.
- Web Servers: The board can be used as a web server, allowing you to create web-based applications that can be accessed from
