In the fast-paced world of embedded systems, time-to-market, scalability, and reliability are critical. This is where System on Modules (SoMs) shine. A SoM is a pre-engineered embedded computing solution that integrates the core components of a system—CPU, memory, storage, and essential peripherals—onto a compact, production-ready module.
Whether you’re building a medical device, an industrial controller, or a smart IoT gateway, SoMs significantly reduce development complexity, accelerate prototyping, and streamline production.
What is a System on Module (SoM)?
A System on Module is a small, pluggable computing board designed to carry out the core processing tasks of an embedded system. Unlike a microcontroller or a full SBC (Single Board Computer), a SoM is optimized to be integrated into custom carrier boards, enabling design flexibility and application-specific interfaces.
A typical SoM includes:
A high-performance processor (ARM, RISC-V, etc.)
RAM and non-volatile memory (eMMC/NAND/NOR)
Power management ICs
Connectivity (Ethernet, USB, UART, etc.)
Optional GPU, camera, or display interfaces
Why Use a SoM?
- Faster Development: Skip complex hardware design and jump straight into application development.
- Reduced Risk: SoMs are pre-tested and production-ready, eliminating many hardware design risks.
- Scalability: Easily upgrade your product to a higher-performance SoM with minimal redesign.
- Shorter Time to Market: Focus on application software and custom I/O, not low-level board design.
- Design Reusability: Use the same SoM across multiple product variants or generations.
- Long-Term Availability: Industrial SoMs often come with lifecycle support of 10+ years.
Who Should Use a SoM?
- OEMs building industrial control systems, medical equipment, or edge AI devices
- Startups needing rapid prototyping and minimal upfront hardware investment
- Product teams developing variants of a core platform with different connectivity, display, or sensor needs
Real-World Applications of SoMs
- Medical Devices: Patient monitors, diagnostic tools
- Industrial Automation: PLCs, HMI panels, motor controllers
- Automotive: Infotainment, telematics, ADAS support
- Retail & IoT: Smart PoS terminals, vending machines, digital signage
Closing Thoughts
System on Modules offer a strategic path to embedded design—balancing customization, speed, and scalability. As hardware complexity grows and product cycles shorten, SoMs empower teams to innovate without reinventing the wheel.
If you’re considering SoMs for your next product, evaluate not just the specs—but the ecosystem, longevity support, and carrier board flexibility.
