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In this guide
Finding the right connectivity solution for your embedded projects is crucial. An Arduino Lan Ethernet Module provides stable wired internet access for IoT devices and automation systems without relying on wireless signals.
We evaluated ten top ranked modules based on protocol support, voltage compatibility, and community feedback. This list covers SPI based chips, shield formats, and diverse PHY options for various microcontroller needs.
Each pick shows key specifications and real world performance notes from verified buyers. Remember that availability and pricing change frequently so check the links for the latest updates before purchasing.
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 highlights the key differences between the ten selected Ethernet modules. Use this table to quickly identify which chip architecture and form factor fits your project requirements.
1. HiLetgo 2pcs W5500 Ethernet LAN Network Module – Best Overall Arduino Lan Ethernet Module
This module stands out as the top choice for reliable wired network connectivity on Arduino platforms. It features the modern W5500 chip which offers superior performance compared to older alternatives while maintaining easy SPI integration.
Pros
- Eight independent sockets support
- Internal 32KB TX RX buffer
- Works with 3.3V and 5V
- Wake on LAN over UDP feature
- High speed SPI interface
Cons
- Requires stable power source
- Not fully shielded form
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The hardware TCP IP stack allows the microcontroller to focus on application logic rather than network management. With eight independent sockets and dedicated memory buffers, it handles multiple connections smoothly without taxing the processor.
One trade-off is the requirement for a stable power supply to ensure consistent performance under load. Users should verify their power rail can sustain the current draw especially when multiple devices are active.
Buyers needing robust IoT infrastructure will appreciate the compatibility with STM32 and various 5V systems. This module offers an excellent balance of speed capacity and ease of use for serious projects.
Advanced Hardware Stack Support
The integrated TCP IP stack reduces software overhead significantly enabling faster data processing on the main microcontroller.
Flexible Voltage Operation
Supporting both 3.3V and 5V logic levels makes this module compatible with a wide range of development boards and systems.
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2. HiLetgo W5500 SPI to LAN Ethernet Network Module – Best Budget Arduino Lan Ethernet Module
This compact module delivers the power of the W5500 chip at an accessible price point for budget constrained makers. It maintains high performance standards while simplifying the integration process for common microcontroller setups.
Pros
- Affordable W5500 based design
- Direct STM32 interface support
- TTL level SPI connection easy
- 3.3V and 5V compatible
- High performance Ethernet PHY
Cons
- Requires external 200mA current
- Small form factor handling
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The TTL level SPI interface ensures straightforward wiring to most boards without needing complex level shifting. This reduces the time required to prototype networked applications in home automation or industrial monitoring.
Users must ensure their power supply can deliver at least 200mA to avoid instability. While this is a minor constraint it is essential to maintain signal integrity during high throughput operations.
For hobbyists seeking reliable Ethernet without breaking the bank this option provides excellent value. It is particularly suitable for projects needing TCP IP capabilities on STM32 or Arduino boards.
Simple SPI Integration
The TTL level interface reduces wiring complexity allowing for quick prototyping of network connected devices.
High Performance PHY
Built on the W5500 chip it ensures fast and stable connections essential for real time data applications.
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3. ACEIRMC W5500 SPI to LAN Ethernet Network Module – Best Premium Arduino Lan Ethernet Module
This premium option offers a multi pack solution ideal for production runs or extensive prototype testing. The build quality emphasizes stability with clear guidelines for voltage and current to ensure consistent operation over time.
Pros
- Five units in one package
- High quality PCB construction
- Compact size for dense builds
- Stable power requirements noted
- Reliable SPI communication
Cons
- Requires careful power management
- Higher initial cost for bulk
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The compact 23 by 25 millimeter footprint allows integration into space constrained enclosures without sacrificing performance. This is particularly useful for industrial IoT gateways where board real estate is limited.
While the bulk pricing might seem higher upfront it offers significant savings per unit compared to buying single modules separately. This makes it a smart choice for developers needing redundancy or multiple nodes.
Engineers looking for scalable Ethernet solutions will find this module well suited for their needs. It balances size and performance while ensuring power stability through design and documentation.
Bulk Project Efficiency
Purchasing a five pack reduces unit cost and streamlines sourcing for larger scale deployments or testing phases.
Compact PCB Design
The small form factor fits easily into tight spaces making it ideal for embedded systems with space limits.
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4. 2-Pack W5500 Ethernet LAN Module – Dual Channel Ethernet Ethernet Module
This two pack provides a practical solution for projects requiring redundant network paths or backup connectivity. It features the same advanced W5500 chip architecture known for robust TCP IP performance and hardware offloading.
Pros
- Two units for redundancy
- Full hardware TCP stack support
- Eight simultaneous socket support
- 10 or 100 Mbps speed
- SPI Mode 0 or 3
Cons
- Limited customer reviews available
- Check compatibility before bulk buy
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The industrial grade PHY ensures reliable connections even in electrically noisy environments. Auto negotiation of duplex settings simplifies setup and ensures optimal throughput without manual configuration steps.
Buyers should note that detailed user feedback is currently limited so testing before large scale deployment is recommended. Ensuring power stability remains critical for maintaining the advertised high speed performance.
For applications needing failover capabilities this dual module set offers valuable flexibility. It supports real time control scenarios with high speed SPI modes suitable for demanding industrial tasks.
Redundant Connectivity Options
Having two modules allows for backup networking paths improving reliability in critical automation or server setups.
Industrial Grade PHY
The embedded PHY supports auto negotiation ensuring stable full or half duplex connections across different network environments.
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5. DEVMO W5100 Ethernet Network Shield – Classic Shield Ethernet Ethernet Module
This shield offers a traditional form factor that stacks directly onto Arduino UNO or MEGA boards for immediate connectivity. It includes an integrated SD card slot which is useful for data logging without additional hardware.
Pros
- Full shield form factor
- Includes SD card slot
- Easy plug and play setup
- Compatible with UNO and MEGA
- Hardware TCP and UDP stack
Cons
- Older W5100 chip technology
- Requires more space on board
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The hardware TCP IP stack simplifies networking tasks allowing the microcontroller to focus on primary application logic. It supports both TCP and UDP protocols making it versatile for various server and client applications.
Compared to newer SPI modules this shield occupies more space and uses an older chip architecture. However for projects prioritizing ease of use and physical pin stacking it remains a solid choice.
Users looking for a plug and play experience with storage capabilities will appreciate this design. It is particularly helpful for educational projects or legacy system upgrades requiring physical shield mounting.
Integrated Data Logging
The built in SD card slot enables local storage of network data without requiring extra sensors or modules.
Plug and Play Setup
Stacking directly onto standard boards simplifies assembly and reduces wiring errors for beginners and educators.
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6. HiLetgo ENC28J60 Ethernet LAN Network Module – Entry Level Ethernet Ethernet Module
This module provides an affordable entry point for wired networking on a variety of microcontroller platforms. It utilizes the proven ENC28J60 chip which has been a staple for low cost Ethernet projects for many years.
Pros
- Affordable entry level option
- Includes HR911105A transformer
- Supports multiple microcontrollers
- Simple SPI interface design
- Reliable 25MHz crystal
Cons
- Limited to 3.3V logic
- Older protocol support
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The inclusion of the HR911105A isolation transformer ensures safe electrical connections to the LAN cable. This protects your board from potential surges or noise on the network line during operation.
Users must ensure their logic levels match the 3.3V requirement to avoid communication issues. While it lacks some advanced features of newer chips it remains sufficient for basic data transmission needs.
For students or hobbyists exploring network basics this module offers excellent value. It supports AVR PIC and STM32 making it versatile for diverse embedded system curricula and experiments.
Affordable Entry Level Cost
This module keeps costs low allowing beginners to experiment with Ethernet without large financial investment.
Microcontroller Versatility
Support for AVR PIC and STM32 makes it adaptable to many different development ecosystems and legacy boards.
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7. ACEIRMC ENC28J60 Ethernet LAN Network Module – Value Pack Ethernet Ethernet Module
This five pack option offers significant value for developers needing multiple nodes or redundant connections. The high rating suggests reliable performance consistent build quality across the batch which is crucial for distributed systems.
Pros
- Five units for bulk testing
- High quality rating 4.7
- IEEE 802.3 compliant
- Includes isolation transformer
- Reliable crystal oscillator
Cons
- Requires 3.3V logic level
- Limited to lower speeds
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The modules adhere to the IEEE 802.3 standard ensuring compatibility with standard Ethernet networks. Each unit includes the necessary transformer and crystal for stable operation without requiring external components.
Users should remember that these operate strictly at 3.3V logic levels which may require level shifters for 5V boards. This constraint is manageable and common among legacy Ethernet chips.
For bulk projects or educational kits this pack provides a cost effective solution. It allows for creating mesh networks or sensor arrays where cost per node is a primary consideration.
High Quality Batch Rating
The strong user ratings indicate consistent performance across multiple units which reduces risk in large deployments.
Standards Compliance
IEEE 802.3 compliance ensures these modules will work reliably with standard routers and network switches.
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8. W5500 Ethernet Module TCP/IP Network Module – ESP Compatible Ethernet Ethernet Module
This module is highly rated for its seamless compatibility with popular Wi-Fi microcontrollers like the ESP32 and ESP8266. It provides a reliable wired fallback when wireless signals are weak or unavailable in noisy environments.
Pros
- Perfect ESP32 and ESP8266 support
- Full size standard RJ45 port
- Excellent 5.0 user rating
- Stable TCP IP connectivity
- Easy SPI integration
Cons
- Single unit packaging
- Requires careful pin mapping
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The full size RJ45 port simplifies physical connections allowing standard cables to be used without adapters. This makes it ideal for IoT projects where a permanent stable connection is preferred over wireless alternatives.
Users should ensure proper wiring of the SPI lines especially with the 3.3V logic boards. However the detailed tutorials available online make this process straightforward even for intermediate users.
For IoT and robotics applications requiring dependable data transmission this module is a top recommendation. It combines robust performance with broad board support for versatile project development.
ESP Microcontroller Support
Specifically tested with ESP32 and ESP8266 boards making it a reliable choice for modern IoT development workflows.
Standard RJ45 Port
The full size port allows for direct connection to routers or switches using standard Ethernet cables without adapters.
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9. 2PCS LAN8720 Ethernet Board – Dual Pack Ethernet Ethernet Module
This dual pack features the LAN8720 transceiver known for high performance and low power consumption. It is well suited for embedded web server applications that require stable throughput without excessive energy use.
Pros
- High performance PHY chip
- Includes two units for projects
- HP Auto MDIX for easy cabling
- Low power design optimized
- Embedded server capability
Cons
- Requires specific configuration
- Check pin compatibility
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The HP Auto MDIX support automatically detects the cable type eliminating the need for crossover cables. This simplifies physical setup and reduces errors during installation in complex network environments.
Users should verify pin compatibility with their specific microcontroller before purchase as configurations vary. Proper setup ensures the module delivers its full potential speed and reliability.
For developers building custom network devices this module offers strong performance characteristics. It is an efficient choice for projects needing low power and high speed data transfer capabilities.
Auto MDIX Cabling
Automatic cable type detection reduces installation complexity by removing the need for crossover Ethernet cables.
Low Power Efficiency
The transceiver is designed to minimize power consumption making it suitable for energy constrained embedded applications.
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10. Hailege ENC28J60 Ethernet LAN Network Module – Standard SPI Ethernet Ethernet Module
This module is a solid choice for general purpose networking on a variety of microcontroller platforms. It delivers consistent performance with a proven chip architecture that is well documented and supported.
Pros
- High rated reliable option
- DIP28 main chip design
- Includes isolation transformer
- 25MHz crystal for stability
- Wide MCU compatibility
Cons
- Requires 3.3V logic
- Basic feature set
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The inclusion of the isolation transformer protects the system from electrical noise on the network line. This is particularly important in industrial environments where interference can affect communication stability.
Users should note the strict 3.3V logic requirement which may necessitate level shifting for 5V boards. Despite this limitation it remains a popular option for its reliability and low cost.
For students and professionals seeking a reliable standard Ethernet module this is a strong candidate. It balances cost and performance effectively for many hobbyist and industrial applications.
Robust Isolation Design
The built in isolation transformer enhances reliability by protecting the microcontroller from network induced electrical noise.
Broad MCU Support
Compatible with AVR PIC and STM32 making it suitable for a wide range of existing microcontroller platforms.
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Buying Guide – How to Choose the Best Arduino Lan Ethernet Module
Selecting the right Ethernet module requires evaluating chip architecture voltage levels and compatibility with your specific microcontroller. This guide covers the essential factors to consider before purchasing.
Chip Architecture
The core chip determines speed protocol support and reliability. Newer chips like W5500 offer hardware offloading for TCP IP reducing CPU load and increasing connection stability compared to older ENC28J60 options.
Choose a modern chip like W5500 for high performance projects or ENC28J60 for budget friendly basic connectivity needs.
Voltage Compatibility
Check if the module supports 3.3V or 5V logic levels. Many advanced modules work with both allowing flexible integration with boards like ESP32 or UNO without extra level shifting.
Verify your board's logic voltage and match it to the module specifications to prevent communication errors or hardware damage.
Form Factor
Modules come as standalone breakout boards or full shields. Shields stack directly onto Arduino boards offering easy wiring while breakout boards provide more flexibility for compact custom enclosures.
Select shields for quick prototyping and breakout boards for projects requiring tight space management or custom PCB designs.
SPI Interface Speed
The SPI communication speed affects data throughput and responsiveness. Higher speed modules ensure faster data transfer which is vital for real time IoT applications or video streaming.
Look for modules supporting SPI Mode 0 or 3 at high frequencies to maximize your network performance and reduce latency.
Socket Count
Some chips support multiple simultaneous sockets allowing concurrent connections to different servers or clients. This is important for applications requiring parallel data streams or redundant network paths.
Prioritize modules supporting eight sockets if your application involves multiple concurrent connections or complex network tasks.
Power Requirements
Ethernet modules can draw significant current especially during transmission spikes. Ensure your power supply can sustain the required current without dropping voltage below safe levels for stable operation.
Provide a stable power source exceeding 200mA to ensure consistent performance and avoid connectivity drops during data transmission.
Transformer and Isolation
An integrated transformer protects your board from electrical surges and noise on the network line. Modules without this component may need external parts increasing complexity and potential failure points.
Choose modules with built in isolation transformers to enhance reliability and reduce wiring complexity in your design.
Software Support
Community libraries and documentation significantly impact development speed. Well supported chips have robust libraries for popular IDEs making coding and debugging much simpler for all users.
Verify that libraries exist for your microcontroller to streamline setup and reduce development time significantly.
How to Use and Care for Your Arduino Lan Ethernet Module
Connect the module to your microcontroller using the SPI pins ensuring voltage levels match your board logic. Use jumper wires to link MISO MOSI SCK and CS pins securely to avoid communication errors.
Install the relevant library for your chip such as Ethernet for W5100 or W5500 in your IDE. Configure your IP settings DHCP options and MAC address to ensure the network connection initializes correctly.
Protect the module from dust and moisture during operation by placing it in an enclosure if needed. Avoid exceeding the maximum current limits of your power supply to prevent component degradation over time.
Frequently Asked Questions
Do these modules support DHCP out of the box?
Most modules using the Ethernet library support DHCP but you must enable it in your code. The library handles the handshake automatically so you do not need to configure static IP unless required.
Can I use these with ESP32 boards?
Yes many modules like the W5500 are specifically compatible with ESP32 boards. Ensure you use 3.3V logic levels since the ESP32 operates at this voltage and lacks tolerance for 5V signals.
What is the difference between W5100 and W5500?
W5500 is newer with better performance and multiple socket support. W5100 is older and simpler which may suffice for basic projects but lacks the speed and advanced features of W5500.
Do I need a separate power supply for the module?
It depends on your board capacity. Some modules draw more than 200mA which can strain USB power so an external supply is often recommended for stability and reliable operation.
Can I use these modules with a 5V Arduino?
Only if the module supports 5V tolerance like the W5500 options. Others like ENC28J60 require 3.3V logic so you must use a voltage divider or level shifter with 5V boards.
Is the RJ45 port replaceable if it breaks?
The port is usually soldered to the board making replacement difficult without professional tools. If it fails it is generally easier and more cost effective to replace the entire module.
Final Thoughts on Choosing the Best Arduino Lan Ethernet Module
We found that the HiLetgo W5500 series offers the best balance of features and compatibility for most users. It provides robust TCP IP support and works seamlessly with a wide range of boards and applications.
Prioritize voltage compatibility and power supply stability when making your decision. These factors often determine whether your project runs smoothly or suffers from intermittent connectivity issues.
Remember that prices and availability can change rapidly so verify the current listings before finalizing your purchase. Always check the latest specifications to ensure they match your project requirements.