Welcome to M-SoM Developer Docs
The Particle M-SoM is a powerful System-on-Module (SoM) designed for industrial and enterprise-grade IoT products. It provides secure cellular connectivity, high-performance compute resources, and flexible I/O in a compact form factor that’s ready for integration into custom carrier boards.
Overview
The M-SoM is part of Particle’s Gen-4 SoM family, offering a balance of performance, reliability, and scalability. Built on the same core platform as Particle’s production-ready devices, it enables developers to quickly move from prototype to full-scale deployment. Its edge-to-cloud architecture includes built-in support for OTA updates, secure connectivity, and fleet management through the Particle Device Cloud.
With its small footprint and industrial operating range, the M-SoM is well-suited for applications like smart energy, connected machinery, logistics, and industrial automation.
Key Features
- M.2 SoM form factor — like the B-SoM for familiar mechanical integration.
- Realtek RTL8722DM MCU — integrated BLE and Wi-Fi.
- Arm Cortex-M33 CPU @ 200 MHz — efficient, modern core for edge workloads.
- Cellular modem options:
- M404: Quectel BG95-M5 LTE Cat M1 / 2G (Global)
- M524: Quectel EG91-EX LTE Cat 1 with 2G/3G fallback (EMEAA)
- M635: Quectel BG95-S5 LTE Cat M1 / 2G (Global with satellite support)
- Built-in GNSS — onboard positioning capability.
- Dual-band Wi-Fi — 802.11a/b/g/n, 2.4 GHz and 5 GHz.
- BLE 5 — uses the same antenna as Wi-Fi for streamlined RF design.
- Application memory — up to 2048 KB (2 MB) user application maximum size.
- Runtime memory — 3072 KB (3 MB) RAM available to user applications.
Cellular Modem Options
| Variant | Modem Model | Category | Region / Coverage | Fallback | GNSS | Notes |
|---|---|---|---|---|---|---|
| M404 | Quectel BG95-M5 | LTE Cat M1 | Global | 2G | Yes | Cost-efficient global LTE-M with fallback |
| M524 | Quectel EG91-EX | LTE Cat 1 | EMEAA | 2G / 3G | Yes | Higher bandwidth Cat 1 option for EMEAA deployments |
| M635 | Quectel BG95-S5 | LTE Cat M1 | Global | 2G | Yes | Adds satellite capability for remote deployments |