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In this guide
Connecting your Arduino to a local area network or the internet opens up a world of possibilities for automation and data monitoring. An Arduino Lan Ethernet Module provides a reliable wired connection that is often more stable than wireless alternatives. Choosing the right module depends on your specific microcontroller and the protocols you need to support for your application.
We have carefully selected ten top-rated products to help you navigate the crowded market of network interfaces. Each option was evaluated based on user feedback, technical specifications, and compatibility with popular development boards. This list covers a range of budgets and performance needs, from basic connectivity to advanced TCP/IP stack handling.
Each pick below highlights key features, pros, and cons to give you a clear picture of what to expect. You will find detailed breakdowns of chipsets, voltage requirements, and physical interfaces to ensure seamless integration. Please note that prices and availability can change frequently, so verify details before making your final purchase decision.
Top 3 Picks for Best Arduino Lan Ethernet Module
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Top 10 Best Arduino Lan Ethernet Module in 2026 Compared
This side-by-side comparison table allows you to quickly assess the technical specifications and features of each module. We have standardized the data to make it easier to identify which product fits your voltage, interface, and performance requirements without getting lost in marketing jargon.
1. HiLetgo 2pcs W5500 Ethernet LAN Network Module – Best Overall Arduino Lan Ethernet Module
This module represents a robust entry point for those seeking reliable Ethernet connectivity with their Arduino projects. The W5500 chipset is a significant upgrade over older models, offering hardware TCP/IP processing that frees up your microcontroller for other tasks. With a rating reflecting strong performance, it stands out as a top choice for hobbyists and developers alike.
Pros
- Supports TCP/IP51
- Wake on LAN feature
- High speed SPI
- Internal TX/RX buffers
- Compatible with STM32
Cons
- Limited documentation online
- Requires external power stability
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The internal 32Kbytes memory for TX/RX buffers is a critical feature that enhances data throughput and stability. It supports 8 independent sockets simultaneously, meaning you can maintain multiple connections without overwhelming the board. This capability is particularly useful for IoT applications where concurrent data streams are common and reliable.
While the module is powerful, it does require careful attention to power supply and software integration. Users may find that the documentation is not as extensive as some competing products, necessitating a bit of research to optimize performance. However, the performance gains justify the learning curve for those serious about networked embedded systems.
We recommend this module for anyone needing a balanced mix of performance and affordability for Ethernet projects. It is ideal for STM32 or Arduino users who need multiple socket support and hardware-based TCP/IP handling. If you value speed and capacity over simplicity, this is a strong contender for your next build.
Hardware TCP/IP Efficiency
The W5500 chip handles the heavy lifting of network protocols so your microcontroller does not have to.
Multiple Connection Capability
Eight independent sockets allow for complex projects involving simultaneous data retrieval and transmission.
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2. HiLetgo W5500 SPI to LAN Ethernet Network Module – Fast SPI Integration
This W5500 module is designed for users who need a direct and efficient path to network connectivity via SPI. The TTL level control interface simplifies the hardware setup for those working with standard development boards. It is highly rated for its stability and ease of integration with STM32 systems.
Pros
- Stable power supply
- TTL level control
- 3.3V 5V support
- Compact design
- Good for STM32
Cons
- Requires 200mA current
- Voltage must be stable
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The requirement for a stable 3.3V external power supply of more than 200mA ensures that the module operates without hiccups during heavy data transfers. This attention to power requirements helps prevent the brownouts that can plague less robust modules. It is a practical choice for projects where uptime is essential.
However, users must be prepared to manage the power delivery carefully. If your board cannot supply enough current, you may need an external regulator or power source. This adds a layer of complexity but ensures long-term reliability and prevents module damage under load.
For those prioritizing a clean interface and robust physical performance, this module is an excellent pick. It works well with Arduino and STM32 boards provided the power supply is managed correctly. If you need a straightforward SPI Ethernet solution with proven performance, this fits the bill.
Power Requirement Clarity
Specifying the exact current needs helps users build reliable systems without unexpected shutdowns.
TTL Control Interface
The TTL level signal simplifies connection logic and reduces the need for extra voltage converters.
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3. ACEIRMC W5500 SPI to LAN Ethernet Network Module – Bulk Value Pack
This value pack offers five units of the W5500 Ethernet module, making it an economical choice for teams or educators setting up multiple labs. Each unit maintains the high-performance characteristics expected from the W5500 chipset. The compact 23 * 25 mm PCB size saves space on larger assemblies.
Pros
- Five units included
- Compact PCB size
- W5500 Performance
- Compatible with STM32
- SPI interface ready
Cons
- Power supply critical
- Voltage must be continuous
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Users appreciate the compatibility with both 3.3V and 5V systems, which broadens its application across different microcontroller environments. The internal buffers and socket support ensure that even in multi-device setups, data integrity is maintained. This is particularly useful for school projects or distributed sensor networks.
On the downside, the power requirements are strict. You must ensure that the voltage is continuous and stable at +3.3V with sufficient current. If these conditions are not met, performance may suffer, and stability issues can arise. Proper power management is key to unlocking the full potential of these modules.
We recommend this bundle for anyone needing multiple modules for a large project or class setup. It provides significant savings compared to buying individually while maintaining quality standards. If you can manage the power requirements effectively, this pack offers excellent value for the price.
Economical Bulk Purchase
Buying in sets reduces the per-unit cost significantly for larger deployments or classroom environments.
Compact Physical Design
The small PCB footprint allows these modules to fit easily in space-constrained projects.
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4. 2-Pack W5500 Ethernet LAN Module – Versatile Interface
This module advertises a high-speed SPI interface capable of operating at 80MHz, which is a significant boon for data-intensive applications. It includes a full hardware TCP/UDP/ICMP/IPv4/PPPoE stack, reducing the software load on your controller. The physical layer supports 10/100Mbps speeds with auto-negotiation.
Pros
- Dual voltage operation
- High speed SPI
- Full duplex support
- Integrated protocol stack
- Multiple socket management
Cons
- Low user rating
- Potential quality issues
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While the technical specifications are impressive on paper, user ratings suggest some inconsistency in product quality or performance. Many users have reported issues that may stem from component variations or power supply sensitivity. It is important to test the unit thoroughly upon receipt to ensure it meets your specific needs.
The dual voltage operation allows it to work with both 3.3V and 5V systems, offering flexibility in design. Wake-on-LAN via UDP is also supported, which is useful for remote power management tasks. However, users should weigh these features against the reported reliability concerns.
We suggest this module for those willing to invest time in debugging or who have strict budget constraints. The feature set is rich, and for some users, it performs flawlessly. If you need high-speed SPI and auto-negotiation, and can test the unit yourself, it might be a viable option.
High-Speed SPI Support
The 80MHz SPI capability ensures fast data transfers for real-time control scenarios.
Wake-On-LAN Feature
Remote activation capabilities allow you to power up your device on demand via network commands.
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5. DEVMO W5100 Ethernet Network Shield – Classic Shield Design
The W5100 is a classic choice that has served the Arduino community well for years. This shield connects directly to the UNO or MEGA board, making setup quick and intuitive. The integrated SD card slot is a unique feature that allows for local data logging alongside network connectivity.
Pros
- Direct connection via RJ45
- SD card storage
- Plug-and-play setup
- Compatible with UNO
- TCP and UDP support
Cons
- Older W5100 chip
- Lower ratings than W5500
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The W5100 chip provides a network stack capable of both TCP and UDP, which is sufficient for many basic web server or client applications. The RJ45 jack ensures a standard and secure connection to your router or switch. It is an excellent option for beginners who prefer shield form factors.
However, compared to newer W5500 solutions, the W5100 is less efficient in terms of speed and memory management. The ratings reflect this generational gap, with some users finding it adequate but not exceptional. If you need higher throughput or more sockets, you might want to look elsewhere.
We recommend this for projects that need local SD storage or are built around older code libraries. The plug-and-play nature is a strong selling point for hobbyists. If you need a straightforward shield with storage capabilities and do not require advanced features, this is a solid choice.
SD Card Integration
The SD slot lets you store logs and files directly on the module without extra wiring.
Shield Form Factor
Stacking directly on the board simplifies prototyping and reduces the need for jumper wires.
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6. HiLetgo ENC28J60 Module – Compact Entry Level
This module is based on the ENC28J60, which has been a popular choice for entry-level Ethernet projects due to its low cost. It features the HR911105A isolation transformer which helps protect your microcontroller from electrical surges. The compact design makes it easy to fit into small custom enclosures.
Pros
- Affordable price
- Compact size
- SPI interface
- Compatible with AVR
- Isolation transformer
Cons
- Older chip technology
- Requires external components
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Users praise it for being a reliable budget option that works well with a variety of microcontrollers including AVR and STM32. The 25MHZ crystal ensures stable timing for the SPI interface. While it is older than the W5500, it still handles basic HTTP requests and data transmission effectively for many use cases.
The main trade-off is performance; the ENC28J60 is generally slower and has fewer buffers than modern alternatives. It may struggle with high-frequency updates or large packet sizes compared to W5500 modules. For simple status reporting, however, it remains a very capable and cost-effective tool.
We recommend this module for learners and hobbyists who are just starting with networking. Its affordability makes it easy to experiment with without fear of wasting money. If your project does not demand high bandwidth or multiple sockets, this is an accessible entry point into Ethernet.
Isolation Transformer
The built-in isolation provides safety against ground loops and electrical noise from the network.
Broad Microcontroller Support
Works with many MCU families which gives you flexibility in choosing your controller.
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7. ACEIRMC 5pcs ENC28J60 Module – Bulk Starter Pack
This five-pack of ENC28J60 modules offers great value for those building multiple devices or testing different configurations. The high user rating reflects consistent quality and performance within this batch. It is an ideal choice for classroom setups or group projects where cost-efficiency is key.
Pros
- Five units for price
- High user rating
- Isolation transformer
- Compatible with AVR
- Standard RJ45
Cons
- Limited speed
- Older chip generation
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Each unit is IEEE 802.3 compatible, ensuring it works with standard networking equipment. The HR911105A isolation transformer is included for added durability and protection. The compact nature of these boards makes them easy to route into complex projects with tight wiring constraints.
While the performance is lower than W5500 options, it is sufficient for most basic IoT tasks like sensor readings or status checks. Users report good stability when powered correctly with 3.3V. It remains a workhorse for simple tasks where speed is not the primary concern.
We suggest this pack for teams needing several network interfaces without a large budget. The high rating indicates reliability across the batch. If you are designing a simple sensor network or teaching a class on embedded systems, this bulk pack provides everything you need.
Group Project Ready
Multiple units ensure everyone has a module to work on simultaneously without extra orders.
Proven Reliability
The high rating suggests that these modules work consistently right out of the box.
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8. W5500 Ethernet Module TCP/IP – ESP32 Compatible
This module stands out with a perfect 5.0 rating from users, signaling high satisfaction with its design and performance. It is specifically marketed for compatibility with Arduino and ESP32 boards, making it a versatile choice for modern development. The full-size RJ45 port ensures a robust physical connection.
Pros
- Perfect 5.0 rating
- Compatible with ESP32
- Reliable TCP/IP
- Full RJ45
- Tutorials available
Cons
- Single unit per pack
- Requires SPI setup
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The W5500 chipset ensures reliable TCP and UDP protocols, essential for stable data transmission. Tutorials and sample codes are readily available, lowering the barrier to entry for beginners. Users appreciate the ease of integration and the stability of the hardware connection.
While it is sold as a single unit which might be more expensive than bulk packs, the quality justifies the cost for critical projects. The SPI interface is standard but requires correct wiring to ensure functionality. For many, the reliability and support make it worth the extra effort.
We recommend this module for ESP32 users or projects where network stability is paramount. The availability of tutorials makes it beginner-friendly. If you need a guaranteed working connection and do not need multiple units immediately, this highly-rated module is a safe and effective choice.
Perfect User Ratings
A flawless 5.0 rating indicates that users have rarely encountered issues with this product.
Developer Friendly
Tutorials and sample code make it easy to get started with networking on any board.
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9. 2PCS LAN8720 Ethernet Board – High Performance PHY
The LAN8720 is known for its high-performance PHY capabilities, supporting 10/100 Mbps speeds. It offers ultra-low power design which is beneficial for battery-operated projects. The integrated regulator simplifies power management for those working with 3.3V systems.
Pros
- High performance PHY
- Low power design
- Auto-MDIX support
- Single 3.3V supply
- Flexible power management
Cons
- Requires external PHY control
- Lower user rating
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Support for HP Auto-MDIX means you do not have to worry about crossover cables; the module detects the required configuration automatically. This flexibility makes it easier to deploy in varied environments. However, it requires more complex software support than a full TCP/IP stack module.
Users note that the rating is lower compared to W5500 options, likely due to the higher integration effort required. While the hardware is capable, the software side can be challenging. If you are building a web server or custom protocol, this might be the right tool.
We suggest this for advanced users who need specific PHY features and do not need a built-in stack. It is great for embedded web server applications where you want full control. If you can handle the extra software setup, this module offers solid hardware performance.
Auto MDIX Support
Automatic crossover detection simplifies cabling and ensures connection regardless of cable type.
Ultra Low Power
Designed to consume minimal power which is perfect for projects running on batteries or solar.
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10. Hailege ENC28J60 Module – Reliable Alternative
This module offers a reliable option for those who prefer the ENC28J60 chipset for its simplicity and low cost. The high user rating suggests that this specific implementation is well-built and consistent. It includes the HR911105A isolation transformer which protects your microcontroller from electrical noise.
Pros
- High user rating
- Isolation transformer
- Compact design
- Compatible with AVR
- Standard SPI
Cons
- Older technology
- Limited throughput
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It works well with standard development boards like Arduino and STM32. The 25MHZ crystal ensures stable timing for SPI communication. Users find it easy to integrate into projects where basic connectivity is all that is needed without complex requirements.
While the performance is lower than newer W5500 solutions, it is stable and sufficient for most hobbyist needs. The compact design makes it easy to fit into small enclosures. If you are designing a system that does not need high speed or large buffers, this is a strong candidate.
We recommend this module for those looking for a budget-friendly alternative with a track record of reliability. It is ideal for simple networking tasks or educational use. If you value stability and cost over speed, this module provides a straightforward solution for your Ethernet needs.
High Reliability Rating
A strong rating indicates that users consistently find this module to be durable and effective.
Compact Size
Small physical dimensions make it easy to fit into tight spaces in your project enclosure.
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Buying Guide – How to Choose the Best Arduino Lan Ethernet Module
Choosing the right Ethernet module for your Arduino project involves understanding the technical requirements of your application. This guide breaks down the key factors you should consider to ensure you get the best performance for your money.
Chipset Type
The chipset is the heart of your Ethernet module. The W5500 is generally preferred over the ENC28J60 for higher speed and hardware TCP/IP support. The W5100 is older and reliable but slower. Look for hardware stacks if you want to reduce microcontroller load.
Voltage Compatibility
Ensure the module operates at the same voltage as your microcontroller. Most work at 3.3V or 5V. Some support both with logic level shifters. If your board runs at 5V and the module is 3.3V, you will need a voltage converter or a module with built-in compatibility.
Interface Type
Most Ethernet modules use the SPI interface because it is fast and easy to use on Arduino boards. Verify the pinout matches your board or that you can easily bridge the connection. Some shields plug directly in but limit you to specific boards.
Buffer Memory
Larger buffer memory allows for more data handling without packet loss. Look for modules with at least 32K bytes of TX/RX buffers. This is crucial for applications that need to send large files or sustain high-speed data streams.
Power Supply Requirements
Some modules require specific current ratings or external power sources. Always check the datasheet for current draw requirements. Ensure your power supply can handle the load to prevent brownouts that could crash your network connection.
Documentation and Support
Good documentation and community support can save you hours of debugging. Check if there are libraries available for your IDE and tutorials online. Popular chips usually have better resources which makes development easier.
Physical Size
The physical dimensions matter if you are building a compact device. Modules with onboard transformers save space but may be larger. Ensure the module fits your case and that you have access to the RJ45 jack if needed.
Socket Support
If you need to run multiple simultaneous connections, look for support for multiple sockets. Some modules support up to 8 independent sockets. This is useful for web servers or projects that need to talk to multiple devices at once.
How to Use and Care for Your Arduino Lan Ethernet Module
Connect the SPI pins of the module to your Arduino board. Typically, MOSI, MISO, SCK, and CS pins are used. Ensure that the CS pin is set as an output in your code. Double check voltage levels before powering on to avoid damage.
Use the provided library for your chipset. Most popular modules have libraries available in the IDE library manager. Initialize the network connection at the start of your setup function. Test connectivity with a ping function or simple HTTP request.
Store the module in a dry environment when not in use. Avoid bending the board excessively to prevent solder joint damage. If you are using it outdoors, ensure the RJ45 port is protected from moisture to maintain signal integrity.
Frequently Asked Questions
Which Ethernet module is best for Arduino UNO?
For Arduino UNO, a module that supports 5V logic or includes a level shifter is best. The W5100 shield is a classic choice. However, the W5500 modules with 3.3V support and level shifters are more modern and efficient. Ensure you check voltage compatibility before purchasing.
What is the difference between W5500 and ENC28J60?
The W5500 has hardware TCP/IP support and higher speed than the ENC28J60. The ENC28J60 is older and cheaper but often requires software processing for networking tasks. For reliable and fast connections, the W5500 is generally recommended over the ENC28J60.
Do I need to buy a shield or module?
Shields plug directly onto your board but are larger and specific to certain boards. Modules are smaller and flexible for wiring but require jumper wires. Choose a shield for simplicity or a module for space-constrained projects.
Can I use these modules with ESP32?
Yes, many Ethernet modules work with the ESP32. Ensure the module operates at 3.3V logic since the ESP32 is 3.3V based. The W5500 is very popular for ESP32 due to its speed and SPI interface compatibility.
How do I check if my Ethernet module is working?
You can use a library ping function to check connectivity. If that fails, check your wiring and IP address settings. Look for LED indicators on the module. If there are no lights, your power or ground connection may be incorrect.
Is there a library for all these modules?
Most popular modules have standard libraries available in the Arduino IDE. The Ethernet library often supports W5500 and W5100. For ENC28J60, you may need a specific library like EtherCard. Always check the product page for recommended software.
Final Thoughts on Choosing the Best Arduino Lan Ethernet Module
We have reviewed ten top-rated options for connecting your Arduino to a network. Each product brings unique strengths to the table depending on your needs for speed, size, and budget. The W5500 modules stand out for performance and modern features.
When making your choice, prioritize factors like voltage compatibility and power supply requirements. Ensure you have a plan for software integration and that the physical size fits your project. These details will save you time and frustration in the long run.
Prices and availability can change frequently so verify the current details before purchasing. Always check for recent reviews to ensure you are getting the latest quality. We hope this guide helps you build a reliable and successful networked project.