Production-Ready Code
Release discipline, version control, and documentation packages ready for factory handoff.
Engineering · Embedded Firmware
Embedded Firmware
SDI writes the intelligence inside your hardware — stable, power-efficient firmware that connects microcontrollers to sensors, cloud platforms, and mobile endpoints.
Our embedded engineers in Silicon Valley deliver production-ready code aligned with your PCB, electrical, and mechanical teams so connected products ship with reliable boot sequences, secure updates, and factory test coverage.
The Intelligence Inside
Firmware engineered for stability, power efficiency, and seamless software integration.
Stability & Reliability
Watchdog timers, fault recovery, and deterministic behavior under load — firmware that keeps running in the field.
Power Efficiency
Sleep modes, duty-cycled sensing, and optimized wake paths to maximize battery life on edge devices.
Software Integration
Clean APIs and protocol bridges connecting firmware to mobile apps, cloud services, and factory test systems.
Embedded Firmware Services
Core disciplines from architecture through secure field updates.
Firmware Architecture
System design, module boundaries, state machines, and interface contracts before line-one code.
Driver Development
Sensor, actuator, display, and peripheral drivers tuned to your hardware schematic.
RTOS Integration
FreeRTOS, Zephyr, and bare-metal scheduling with thread-safe communication patterns.
Wireless Stacks
Wi-Fi, BLE, LoRa, and cellular modem integration with provisioning and reconnect logic.
Bootloader & Security
Secure boot, encrypted storage, key management, and tamper-aware update paths.
Secure OTA Updates
Delta updates, rollback protection, and fleet management hooks for connected devices.
Platforms & Technologies
Microcontrollers, operating systems, and connectivity stacks we deploy across connected product programs.
Microcontrollers
- ESP32
- STM32
- nRF52/nRF53
- RP2040
- SAM D21
- i.MX RT
- PIC32
- ATmega
Operating Systems
- FreeRTOS
- Zephyr
- Bare Metal
- Embedded Linux
- Mbed OS
- Amazon FreeRTOS
Communication Protocols
- I2C
- SPI
- UART
- CAN
- Modbus
- MQTT
- CoAP
- HTTPS/REST
Wireless Technologies
- Wi-Fi 6
- Bluetooth LE
- LoRaWAN
- Zigbee
- Thread
- LTE-M
- NB-IoT
- UWB
Engineered for Complete Products
Firmware developed in lockstep with hardware disciplines — not as an afterthought.
Every firmware program begins with hardware awareness: pin mux from schematics, interrupt maps from PCB layout, and power budgets from electrical architecture.
SDI firmware engineers sit in the same program reviews as PCB and electrical teams — resolving bring-up issues, defining factory test firmware, and aligning communication protocols before production.
- Joint bring-up sessions with electrical and PCB teams
- Pin mux and driver specs derived from approved schematics
- Factory test firmware and ICT alignment
- Bootloader coordination with secure element placement
- Thermal and power profiling under real load conditions
- Release tagging synchronized with hardware spin milestones
Lifecycles
From prototype validation through factory production code rules.
- 01
Prototype Firmware
Rapid bring-up code validating sensors, communication, and core user flows on dev boards.
- 02
Alpha & Beta Builds
Feature-complete releases with logging, diagnostics, and field-test feedback loops.
- 03
Production Validation
Hardened code paths, stress testing, and compliance-aware behavior verification.
- 04
Factory Production
Release-locked images, provisioning scripts, and manufacturing test firmware packages.
Why Choose SDI
Connected Product Expertise
Deep experience linking firmware to mobile apps, cloud APIs, and OTA infrastructure.
Silicon Valley Leadership
Senior embedded architects drive architecture reviews and program direction from California.
Full-Stack Coordination
Firmware, electrical, PCB, mechanical, and software under one integrated program.
Let's Bring Your Hardware to Life
Share your microcontroller platform, connectivity requirements, or existing codebase. Our embedded team will scope architecture, development, and production readiness as one program.
Request Free EstimateFrequently asked questions
Common questions about embedded firmware scope, platforms, timelines, and production handoff.
What embedded firmware services does SDI provide?
Architecture, driver development, RTOS integration, wireless stacks, bootloaders, secure OTA, and factory test firmware.
Which microcontrollers and RTOS platforms do you support?
ESP32, STM32, nRF, RP2040, i.MX RT, and others — with FreeRTOS, Zephyr, bare metal, and embedded Linux.
Do you work alongside PCB and electrical teams?
Yes. Firmware development is coordinated with schematic bring-up, pin mux, and factory test from day one.
Can you implement secure OTA updates?
We deliver signed update packages, rollback protection, and fleet management hooks for connected devices.
How do you approach power efficiency?
Sleep mode design, duty-cycled sensing, and wake-path optimization aligned to your battery and thermal targets.
Do you integrate with mobile and cloud software?
Yes. We define protocol bridges and APIs connecting firmware to mobile apps and cloud services.
How long does a firmware development program take?
Prototype bring-up typically runs 4–8 weeks; production-ready firmware programs span 3–6 months depending on complexity.
Can you take over an existing codebase?
We audit architecture, refactor critical paths, and extend features while maintaining release discipline.
Do you provide factory test firmware?
Yes. Manufacturing test images, provisioning scripts, and ICT alignment are part of production handoff.
How do I request a free estimate?
Submit your platform details, connectivity requirements, and timeline through our contact form.