Bring cutting-edge industrial connectivity to your Arduino UNO R4 projects. The Arduino UNO SPE Shield combines Single Pair Ethernet (T1S) and RS485 communication in one versatile module – perfect for smart automation, retrofitting, and IoT innovation.
Designed to unlock the full potential of your Arduino UNO R4, the Arduino UNO SPE Shield brings professional-grade connectivity to your projects in both the maker and industrial world. It enables high-speed data transmission and power delivery over a single twisted pair cable thanks to integrated 10BASE-T1S Single Pair Ethernet (SPE) with Power over Data Line (PoDL) capabilities, using Microchip’s LAN8651B1 component. This dramatically reduces wiring complexity and cost, while enhancing deployment speed and system flexibility.
Its built-in RS-485 interface allows seamless integration with legacy systems, making it an ideal bridge between existing infrastructure and emerging technologies. Whether you’re retrofitting industrial machines, building smart energy monitoring systems, or prototyping advanced IoT devices, the SPE Shield simplifies communication between modern or legacy equipment.
Engineered for ease of use, the shield offers plug-and-play compatibility with the Arduino UNO R4 family and is supported by a dedicated open-source Arduino library, ensuring a fast and frustration-free development experience.
Shield only - Arduino UNO not included
Features
Single Pair Ethernet with PoDL: Enjoy fast, stable data and power delivery through a twisted pair cable
Dual communication support: Combine modern 10BASE-T1S connectivity with legacy RS-485 for maximum versatility
Simplified wiring: Reduce material costs and complexity in smart building, automotive, and industrial environments
Retrofit-ready: Upgrade RS485-based systems with next-gen features without replacing infrastructure
Plug-and-play experience: Compatible with Arduino UNO R4 and supported by a dedicated Arduino library
Specifications
Single Pair Ethernet
LAN8651B1: • 10BASE-T1S MAC-PHY Ethernet Controller with SPI • Data rate: 10 Mbit/s over a single balanced pair T1SP and T1SN available on screw terminal block Dedicated T1S SPE connector
RS485
XR33058: • Half duplex RS-485 • Data rate: 20 Mbit/s RS485 available on screw terminal block
Additional Interfaces
Digital I/Os Analog Input I2C Serial PWM
Power
• 6–24V from T1SP on screw terminal block (PoDL) • 6–24V from VIN on screw terminal block
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