Silicognition ManT1S is an ESP32 board with a 4-pole terminal block for T1S single-pair Ethernet (SPE) communication and daisy-chaining, as well as unpopulated headers for GPIOs and programming, and a Qwicc connector for I2C expansion.
The IEEE 802.3cg 10BASE-T1S networking standard enables engineers and users to easily network and distribute power to up to eight T1S nodes over a single pair of wires, which makes it suitable for robotics, industrial/home automation, and other projects that benefit from a reduction in the number of cables and associated weight. The company also designed the ManT1S Bridge to interface a standard Ethernet RJ45 to a single-pair T1S mixing segment.
ManT1S specifications:
- System-in-Package – ESP32-PICO-V3-O2
- SoC – ESP32
- CPU – Xtensa dual-core 32-bit LX6 microprocessor up to 240 MHz
- Memory – 520B SRAM
- Storage – 448 KB ROM
- Wireless – WiFi 4 and Bluetooth 4.2/5.x
- Memory – 2 MB PSRAM
- Storage – 8 MB flash
- SoC – ESP32
- Networking
- IEEE 802.3cg 10BASE-T1S Single Pair Ethernet (SPE) via 4-position screw terminal for daisy-chaining T1S network connections
- Wi-Fi 4 802.11b/g/n
- Bluetooth 4.2 (BR/EDR and Low Energy)
- TCP/IP, HTTP, HTTPS, MQTT, etc.
- U.FL antenna connector
- Â I/Os
- 2x 12-pin through and castelated holes for 16x GPIO; breadboard-friendly spacing.
- Qwiic connector
- Debugging/Programming – 6-pin J6 programming footprint compatible with wESP32-Prog or wESP32-Prog-C serial programmers
- Power distribution – 5 ~ 75 V and ~700 mA (up to 52 W)
- Dimensions – 35 x 30.5mm
- Weight – 6 grams
The ManT1S board ships with an open-source MicroPython firmware pre-installed, and Silicognition also upstreamed support for Arduino and ESPHome for Home Assistant integration. The board is programmable through the serial interface or over the network with MicroPython WebREPL. You’ll already find example code on GitHub for web servers, PIR-triggered light control, and robotics arms, but the documentation website is still a work in progress (not out of the ordinary for a crowdfunded project).
Since most people’s Ethernet LAN is probably connected to a standard switch or router with RJ45 ports, they also designed the ManT1S Bridge companion board for RJ45 to T1S SPE conversion and power:
- 4-position screw terminal for daisy-chaining T1S network connections
- RJ45 jack for Ethernet networking
- Misc – 9-pin utility header for power access and switch / PHY config hacking
- Power – 48V PoE+ Class 4 – Up to 30 W of power requested for the T1S network
- Dimensions – 64 x 26 mm
- Weight – 15 grams
The company also provided a comparison table between the ManT1S, Arduino UNO SPE Shield, and other T1S single-pair Ethernet solutions. They also note that the ManT1S and ManT1S-Bridge have been tested with the Arduino UNO SPE shield, but ask users to consider the lower input voltage capability of the Arduino shield when using them together.
Silicognition launched the ManT1S and ManT1S bridge on Crowd Supply with a $4,000 funding goal. A $44 pledge should get out the Man1TS board with or without a screw terminal, the RJ45 to T1S bridge adds $58 if needed, and a kit with two ManT1S boards with pre-soldered screw-terminal blocks and one ManT1S Bridge goes for $125. Shipping adds $8 to the US and $18 to the rest of the world. Deliveries are scheduled to start by mid-April 2026. The short video below is worth a watch, as it clearly shows the benefits of SPE using a robotic arm.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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