ManT1S Module Enables T1S Single-Pair Ethernet for ESP32 Automation

ManT1S – T1S single-pair Ethernet

The ManT1S module brings T1S single-pair Ethernet into embedded systems, robotics, and automation setups that need compact wiring and reliable networking. It uses the IEEE 802.3cg 10BASE-T1S standard to move both power and data through a single twisted pair, which cuts cabling bulk and enables daisy-chained nodes across a shared mixing segment. This design supports up to eight T1S nodes on one line and creates a streamlined path for building distributed sensors, actuators, and control modules.

With an ESP32 at its core and MicroPython ready to run, ManT1S gives developers a fast way to deploy logic across multiple networked endpoints. The ManT1S-Bridge expands this setup by converting standard RJ45 Ethernet into a T1S segment while delivering 48 V power when used with a PoE+ switch. Together, the board and the bridge form a flexible platform for modular industrial systems, compact robots, and large-scale IoT installations that need simple wiring and high expandability.

ManT1S Top and Bottom View

Silicognition ManT1S Specifications:

• SiP / SoC: ESP32-PICO-V3-O2 with ESP32 dual-core Xtensa LX6 @ up to 240 MHz
• Memory: 520 KB SRAM, 2 MB PSRAM
• Storage: 448 KB ROM, 8 MB flash
• Networking:
  • IEEE 802.3cg 10BASE-T1S Single-Pair Ethernet via 4-position screw terminal (supports daisy-chaining)
  • Wi-Fi 4 (802.11b/g/n)
  • Bluetooth 4.2 / Bluetooth 5.x (BR/EDR + LE)
  • U.FL connector for external antenna
  • Supports TCP/IP, HTTP, HTTPS, MQTT, and more
• Expansions:
  • 16x GPIO through 2x 12 castellated/through-hole headers (breadboard-friendly)
  • Qwiic connector for I²C expansion
• Debug/Programming: 6-pin J6 header compatible with wESP32-Prog and wESP32-Prog-C programmers
• Power: 5V to 75V input, up to ~700 mA (≈52W) for powering nodes over the T1S line
• Dimensions: 35 mm x 30.5 mm
• Weight: 6 g

The ManT1S comes preloaded with open-source MicroPython, so developers can start writing and testing logic immediately. Those who prefer other ecosystems can switch to Arduino or ESPHome, both of which already have upstream support. The board handles common network protocols such as TCP/IP, HTTP, HTTPS, and MQTT over the T1S single-pair Ethernet bus, while built-in Wi-Fi and Bluetooth give projects an additional or fallback wireless path when needed. More information available on the documentation website.

Silicognition ManT1S-Bridge

Silicognition ManT1S-Bridge Specifications:

• Transparent network switch: Bridges Ethernet RJ45 to T1S
• PoE+ Class 4: Up to 30 W of power requested for the T1S network
• I/O:
  • Four-position screw terminal for daisy-chaining T1S network connections
  • RJ45 jack for Ethernet network
  • 9-pin 0.1-inch utility footprint for power access and switch / PHY config hacking
• Physical Dimensions: 64 x 26 mm (2.52 x 1.02 in)
• Weight: 15 g (0.53 oz)

Example code on GitHub includes demos such as web servers, PIR-based lighting control, and simple robotic-arm movement. These ready-to-use samples make the ManT1S a practical foundation for robotics, distributed sensor networks, smart-building systems, and other automation projects that need clean, minimal wiring.

The company also shared a comparison table outlining differences between the ManT1S, the Arduino UNO SPE Shield, and other T1S single-pair Ethernet options. They add that both the ManT1S and ManT1S-Bridge work with the Arduino UNO SPE Shield, but users should keep the shield’s lower input-voltage rating in mind when pairing the two.

Comparison Table

You can back or purchase the ManT1S directly from its Crowd Supply campaign page. The standalone board costs $44, with an option to choose a version that includes the soldered screw-terminal block. A $125 starter kit bundles two ManT1S boards with one T1S-to-Ethernet bridge for immediate testing. Worldwide shipping adds about $18, so the final price will depend on your location.

Images used courtesy of silicognition.com