Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Chip Model | LAN8720A |
| Interface Type | RMII (Reduced Media Independent Interface) |
| Supported Speeds | 10/100 Mbps Auto-Negotiation |
| Operating Voltage | 3.3V Logic, 1.2V Core |
| Connector Type | Standard RJ45 Jack with LEDs |
| LED Indicators | Link and Activity Status |
| Package Form | Breakout Module with Pin Headers |
| Compatibility | STM32, ESP32, Raspberry Pi, and generic MCUs |
| Operating Temperature | -40°C to +85°C Industrial Grade |
| Dimensions | 25mm x 18mm x 12mm |
Anonymous
Mar 26, 2026
Rating: 5/5
Reliable Ethernet Transceiver
Used this for an industrial sensor gateway. It has been running continuously for three weeks without dropping a packet. The auto-negotiation feature works perfectly with older switches too.
Anonymous
Mar 22, 2026
Rating: 4/5
Solid performance, minor soldering needed
The module functions exactly as described. I had to solder my own header pins as they were not pre-attached on my batch, but the PCB quality is excellent. Stable 100Mbps connection achieved.
Anonymous
Mar 22, 2026
Rating: 5/5
Compact and efficient
Small footprint makes it easy to integrate into custom PCB designs. The LED indicators are bright enough to see status at a glance. No issues with heat dissipation even under load.
Anonymous
Mar 03, 2026
Rating: 4/5
Good module, check voltage levels
Works well but ensure your microcontroller supports 3.3V logic for the RMII lines. Once configured correctly, it provides a stable network connection for our robot controller.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for STM32 Projects
This module worked flawlessly with my STM32F4 discovery board. The RMII interface was easy to configure, and I got link status immediately. Great value for prototyping Ethernet connectivity.
Anonymous
Mar 01, 2026
Rating: 5/5
Great for learning networking
Bought this for my university embedded systems course. The documentation online combined with this hardware made implementing TCP/IP stack much easier to understand. Highly recommended for students.
Q: Does this module support Gigabit Ethernet?
A: No, the LAN8720 chip specifically supports 10/100 Mbps Fast Ethernet only. For Gigabit speeds, you would need a different model like the LAN8710 or similar.
Q: Is the 5V tolerance available on the input pins?
A: The module operates at 3.3V logic levels. While it has an onboard regulator for power input, the data pins (RMII) are not 5V tolerant and should be connected to 3.3V MCU pins only.
Q: Can I use this with an ESP32 development board?
A: Yes, the ESP32 supports the EMAC peripheral with RMII interface. You will need to map the GPIO pins correctly in your code and provide a 50MHz reference clock.
Q: What is the pin spacing for the headers?
A: The module uses standard 2.54mm (0.1 inch) pin spacing, making it compatible with most breadboards and standard female header cables.
Q: Does it come with example code for Arduino?
A: The hardware is compatible with Arduino boards that have Ethernet libraries, but since this is a raw PHY module, you typically need an MCU with built-in MAC or an external SPI-to-Ethernet bridge. Check specific library compatibility for your host controller.
Bottled Water Stand – Inverted Rack with Pump Dispenser for Large Mineral/Pure Water Jugs
$18.50
Sketching Blending Stump Set - Fine & Round Tip Tools with Replaceable Sponge Heads for Highlight Creation, Drawing Correction, and Tracing
$7.26
Automatic Retractable Air Hose Reel Auto Repair Car Wash Shop Electric Reel Water Drum PU Air Pipe Sandblasting Hose
$72.20
![[Live Stream Exclusive] Taikang Bybo Dental - South Korean Dentium Dental Implants for Tooth Loss Restoration](https://www.gosteppe.com/cache/small/product/269973/legacy-main-5e274b6981a80a22f7dc25a6.webp)
[Live Stream Exclusive] Taikang Bybo Dental - South Korean Dentium Dental Implants for Tooth Loss Restoration
$2,480.00
Food-Grade Silicone Soap Mold - Toast Shape with Little Angel Design zx228
$19.40
Ultra-Fast High-Adhesion Strong Clear Packing Tape 4.5/5.5 Width Packaging Tape Large Roll Free Shipping Extra Sticky Type
$729.50
Genuine Yokohama Tires 205/215/225/235/245 45/50/55/60/65 R16/17/18/19
$220.00
Marie's Paper Blending Pen Set for Soft Sketches and Pastels - Professional Art Student Tools Including Blending Knives, Balls, Sponges, and Egg-Shaped Blenders for Oil Pastels and Drawing on Newsprint or Xuan Paper
$3.80
Toilet Storage Rack, Bathroom Floor-Standing Shelf, No-Drill Organizer for Toilet and Washing Machine
$26.00
Xiaoyaoyou Calligraphy Tracing Scroll - Antique-Style Mechanized Copybook for Beginners, Universal Kai Script Practice
$9.90
Commercial Tunnel Dryer - Conveyor Line for Drying Vegetables, Fruits, Herbs, and Agricultural Products
$36,019.00
Stainless Steel Over-Toilet Storage Rack – Floor-Standing Bathroom Organizer for Narrow Spaces Near Toilet or Washing Machine
$8.42
240 Drum Kit Techniques
$15.00
ZITAY D-TAP to DC Male Connector Power Cable for V-Mount Battery, Atomos Monitor Power Supply
$59.00
2025 New Flexible Silicone Food Warmer Plate - Multi-Functional and Rollable
$185.00
Michelin Tires 225 235 245 255 275/45 50 55 60R17 18 19 20 21 Run-Flat
$400.00
Narrow Gap Storage Rack for Behind Toilet - Bathroom Organizer Cabinet, Plastic Floor-Standing Unit for Restroom or Balcony
$24.20
Authentic Kayou Ultraman Cards - Zero & Tiga Classic Edition Full Box Deluxe Set with Max Star Cards (10 Yuan Pack)
$8.50
![[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics](https://www.gosteppe.com/cache/small/product/269958/legacy-main-ec3c299e01aeec8ca2d4d9fb.webp)
[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics
$287.00
Aromatherapy Candle Essential Oil, Soluble Fragrance Oil, Lily and Mint Scent, High Concentration Diffuser Stone and Soap DIY Material
$3.90
Disiple Commercial Fried Chicken Warmer with Heat Lamp for Egg Tarts, Chestnuts, and Sweet Potatoes
$1,045.00
Baby Rattle with Chewable Goat Skin - Traditional Wooden Hand-Shaken Toy for Newborns
$8.42
Low-Temperature 3D Stereoscopic Drawing Pen for Kids, 3D Printing Pen Consumables PCL Filament Coil
$10.20
GHL Small Wet Mixing Granulator Chicken Essence Feed Pelletizer Lab High-Speed Wet Mixing Granulator
$36,000.00
![[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement 1000 Grafts](https://www.gosteppe.com/cache/small/product/269952/legacy-main-dcbe0d97f2626dd23efe098f.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement 1000 Grafts
$14,000.00
![[Folded Book] Zhao Mengfu Running Script: Zhi Zhai Ji - Complete Original-Size Calligraphy Masterpiece in Accordion Binding](https://www.gosteppe.com/cache/small/product/269951/legacy-main-dcc7bccd2c0e53c519ed3ca3.webp)
[Folded Book] Zhao Mengfu Running Script: Zhi Zhai Ji - Complete Original-Size Calligraphy Masterpiece in Accordion Binding
$15.10
Aizaofang Four-Connected Flower Elf Oval Flower DIY Handmade Soap Silicone Mold New Bar Soap Silicone Mold
$16.10
Ruitai Dental Korean Implant System Package
$3,980.00
Dental Implant Package - Full Mouth Zirconia Crowns by Dilic for Missing Teeth Replacement
$10.00
Adjustable Over-Toilet Storage Rack for Bathroom Floor Standing Space Saving Organizer
$147.20
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
