# STMicroelectronics ST87M01 NB-IoT modules gain Zephyr RTOS support

> **Key takeaway:** The ST87M01 NB-IoT module family is now compatible with the Zephyr RTOS, enabling open-source connectivity stacks for low-power IoT devices.

**Published:** 2026-11-09T17:54:10+00:00 
**Source:** Hackster.io News 
**Category:** open-hardware 
**Canonical URL:** https://fosswire.org/news/stmicroelectronics-st87m01-nb-iot-modules-gain-zephyr-rtos-s.html 

## Summary
STMicroelectronics has announced official support for its ST87M01 Narrowband Internet of Things (NB-IoT) module family within the Zephyr real-time operating system (RTOS). This integration provides developers with access to a standardized open-source framework for managing low-power, long-range connectivity in embedded applications.

The update enables a variety of networking protocols and positioning services directly through the Zephyr ecosystem. This includes support for TCP, UDP, HTTP, MQTT, and the resource-constrained CoAP protocol, alongside GNSS and Wi-Fi positioning capabilities.

## Technical connectivity and SIM management
- **Networking Protocols:** Full integration for UDP, TCP, HTTP, MQTT, and CoAP (Constrained Application Protocol) for sensor network communication.
- **Positioning and Monitoring:** Support for Global Navigation Satellite System (GNSS) signals, including GPS, as well as Wi-Fi positioning and RSSI signal strength monitoring.
- **SIM Integration:** Compatibility with Onomondo SoftSIM software-based Subscriber Identity Modules to reduce hardware production costs.
- **Provisioning Standards:** Support for the SGP.32 standard, allowing for in-factor SIM profile provisioning and remote management in the field.

## Why it matters
By bringing the ST87M01 family into the Zephyr ecosystem, STMicroelectronics reduces the barrier to entry for developers building professional-grade IoT hardware using open-source software. This move facilitates faster deployment cycles and lowers costs through software-based SIM management and standardized connectivity stacks.