S0 – Zephyr-based Gateway for Wireless IoT.
S0 combines the S0 Board with the Baseboard into a low-power, Zephyr RTOS gateway. Built on ESP32-C6 RISC-V, it delivers multi-protocol wireless connectivity for smart metering, industrial automation, and constrained edge deployments.
S0 Board
The S0 Board is the wireless compute core of the S0 gateway. Built on the ESP32-C6 RISC-V microcontroller running Zephyr RTOS, it handles multi-protocol wireless data collection and cloud backhaul in a compact, low-power form factor.
- ✓ ESP32-C6 RISC-V Core
- ✓ Wireless M-Bus (868 MHz)
- ✓ NB-IoT / LTE-M (SIM7080G)
- ✓ WiFi & Bluetooth LE
- ✓ Zephyr RTOS
- ✓ Open Source Hardware
Baseboard
The Baseboard extends the S0 Board into a complete industrial gateway. It adds wired Ethernet, M-Bus transceiver, SD card logging, 24V DC power, battery backup, and DIN-rail mounting: everything needed for professional smart metering and industrial installations.
- ✓ W5500 Ethernet Controller
- ✓ TSS721A M-Bus Transceiver
- ✓ SD Card Data Logging
- ✓ 24V DC Power Input (18–36V)
- ✓ Battery Backup & Charging
- ✓ DIN-Rail Mountable
Built for Industrial IoT.
Everything you need for smart metering and industrial automation in a modular, open-source platform.
Support for Wireless M-Bus, NB-IoT, LTE-M, WiFi, and BLE. Connect any device with any protocol.
Ultra-low power operation with battery backup and charging. Perfect for remote deployments.
ESP32-C6 RISC-V core with expansion options. Add Ethernet, M-Bus, and SD card logging.
Built on Zephyr RTOS with secure boot and encrypted communication for mission-critical apps.
Run Wasm workloads at the edge. Perform AI inference and data processing locally.
All hardware designs and firmware are open source. Customise and extend as needed.
Where S0 deploys.
Smart Metering
Collect utility consumption data from wireless meters and relay it securely to Magistrala.
Industrial Automation
Monitor equipment health and trigger alerts at the edge without cloud round-trips.
Remote Deployments
Battery-backed operation in locations without permanent power: pipelines, silos, and remote infrastructure.
Edge AI
Execute lightweight inference workloads on-device using Propeller's Wasm runtime.
Connects with the full stack.
S0 is designed to run Magistrala and Propeller workloads at the extreme edge.
Common questions.
What is Zephyr RTOS?
Zephyr is a small, scalable real-time operating system designed for resource-constrained and embedded devices. It is maintained by the Linux Foundation and supports a wide range of microcontrollers including the ESP32-C6 used on the S0 Board.
What is the difference between S0 and S1?
S0 runs Zephyr RTOS on an ESP32-C6 microcontroller, optimised for low power and constrained environments. S1 runs full Linux on a RISC-V compute board (BeagleV-Fire) and supports containers and heavier workloads.
Do I need the Baseboard to use S0?
No. The S0 Board is fully functional on its own for wireless applications. The Baseboard adds wired Ethernet, M-Bus transceiver, SD card logging, industrial power input, and DIN-rail mounting for more demanding deployments.
Can I customise the S0 firmware?
Yes. The S0 firmware is open source. You can modify, extend, or replace it. The hardware schematics are also published, so you can adapt the board design for your specific requirements.
Does S0 support Propeller Wasm workloads?
Yes. S0 includes a lightweight Propeller runtime for Zephyr RTOS that allows the device to receive and execute Wasm workloads deployed remotely through the Propeller manager.
Start building at the edge.
Read the getting-started guide, explore the open hardware schematics, or get in touch with the team.
S0 hardware was developed with support from the European Union's Horizon Europe research and innovation programme as part of the ELASTIC project.