Product firmware development
Firmware built end to end in C and C++: architecture, drivers, bare-metal or RTOS application logic, connectivity, low-power design and over-the-air updates, built to the standard your stage calls for.
Embedded firmware engineering
Firmware for connected products that have to work.
40 Below Labs designs, builds and debugs embedded firmware for IoT, industrial and consumer devices. LTE, Bluetooth and Wi-Fi on ESP32, STM32 and other microcontroller platforms, from first prototype through production launch.
- C / C++
- ESP32
- STM32
- FreeRTOS
- BLE
- Wi-Fi
- LTE CAT-M1
- GPS / GNSS
- MQTT
- AWS IoT
- CAN / J1939
Services
From proof of concept to production firmware
Bring an idea, a half-built prototype or a product that needs more firmware help than your team can handle.
Connectivity & cloud integration
BLE, Wi-Fi and cellular (CAT-M1 LTE) devices that connect reliably and report to the cloud over MQTT, including AWS IoT.
Rapid prototyping
Fast, functional proof-of-concept devices built from off-the-shelf modules and 3D-printed enclosures. Working first, polish later, so you can test the idea before committing to custom hardware.
Team augmentation & code reviews
Senior firmware capacity for your existing team, independent firmware audits, ports to new microcontrollers and hands-on board bring-up and debugging.
Why 40 Below Labs
Experienced firmware engineering, direct from the engineer
- You talk to the engineer. No account managers. The person scoping your project writes and debugs the code.
- 8+ years shipping connected products across IoT, automotive, agriculture, industrial and consumer electronics.
- Built for the field. Firmware for devices that run unattended, survive bad connections and recover on their own.
- Prototype or production. Quick, functional builds when you need to prove an idea, and robust, documented firmware with OTA updates when you're ready to ship.
- A trusted partner network for PCB design, mechanical, mobile apps and manufacturing when your project needs more than firmware.
Selected work
Devices in the field
Handheld game console
Helped debug and improve audio streaming performance on a handheld game console.
InFlow
Intake Health
Firmware development on the team behind a urinal-mounted sensor that automatically checks athletes' hydration within seconds of each use.
PoE lighting controllers
Firmware development for Power-over-Ethernet lighting controllers with full color tuning, smooth dimming, and cloud or local control, all over a single network cable.
Industries
Experience across industries
- Internet of Things
- Industrial
- Agriculture
- Automotive
- Consumer electronics
- Gaming
- Sports & health tech
- Defense
How it works
A simple, transparent process
Discovery call
A free conversation about your product, goals, timeline and where firmware fits.
Scope & estimate
A clear plan with milestones and an estimate, so you know what you're getting before work starts.
Build & iterate
Regular progress updates and working builds. Problems surface early, not at launch.
Handoff & support
Documented source code your team can own, with support available after handoff.
Adding an engineer to your existing team? Team augmentation is simpler: after a quick intro call, I start working directly in your codebase, tools and process.
Have a product that needs firmware?
Tell me what you're building. Whether it's an idea on a napkin or a device that's almost ready to ship, I'll help you figure out the next step.
Start a project