Activity 01
Custom design, rapid prototyping, embedded firmware, certifications — design office outsourcing or reinforcement, our engineers take your project on from A to Z, in France.
Our design office designs custom electronic boards, in close collaboration with you. Senior engineers and technicians take on your project from A to Z: schematic, routing of the PCB, firmware development, prototyping and industrialisation.
We don't stop at delivering the prototype. Our goal is to hand you a product that is industrialisable, reliable and certified — ready for series production.
Looking to outsource your design office or to find an electronics service provider? Codium works as a full subcontractor or as one-off reinforcement, depending on your needs.
You need an external partner or have an in-house project to develop. First discussion to frame the need, estimate the complexity and draw up a project schedule.
Full development: electronic schematic, multilayer PCB layout, firmware development, mechanical design. Deliverables in standard industrial formats.
Manufacture of a small batch of prototypes to validate the design. Electrical, functional and robustness tests. Rapid iterations until full validation.
Compilation of the complete manufacturing file (BOM, Gerber, assembly instructions, test procedures). Direct launch on our industrial production line.
From the discovery call to delivery: 6 steps explained in detail, with lead times, deliverables and everyone's role at each phase.
See the full process →Design of modules, connected sensors and industrial IoT devices. Wi-Fi, Bluetooth, LoRa, Zigbee, 4G/LTE-M. From the physical layer to the cloud service, we master the entire chain. Development of industrial IoT solutions and connected device prototypes. For in-depth expertise in radio connectivity, see our IoT design office; for full support from specification to industrialised prototype, see our connected product design page.
STM32, NRF52, ESP32 microcontrollers and complex embedded systems. Firmware, BSP and low-level driver development. Real-time programming and power consumption optimisation for battery-powered applications.
Control boards, special-purpose machines, sensor interfaces, measurement systems and automated test benches. Real-time processing under Zephyr RTOS or FreeRTOS. Robustness for demanding environments (temperature, vibration, EMC).
Full support for CE, FCC and IC marking and RoHS compliance. Preparation of technical files and EMC pre-tests before going to an accredited laboratory.
Compilation of the complete manufacturing file: bill of materials (BOM), Gerber files, assembly instructions, test procedures. Definition of tooling and production start-up at Codium — see our prototyping & industrialisation.
Schematic design, multilayer routing, impedance constraints, DFM and production-ready deliverables. Everything is done in-house on KiCad, by our own engineers.
Discover our schematic & layout expertiseLow-level drivers, BSP, Zephyr RTOS, embedded Linux. From microcontroller to system on module — we develop the firmware that makes your board work.
Discover our firmware expertiseHardware start-ups, industrial SMEs, large accounts — our engineers work in a wide range of sectors, from designing the first prototype through to series industrialisation.
Control and command boards, industrial controllers, HMIs, automated test benches and supervision systems.
Biomedical sensors, wireless monitoring, measurement equipment. Design focused on compliance and reliability.
Embedded electronics, geolocation, telematics, wireless communication for vehicles and connected fleets.
Connected sensors, LoRa / LTE-M gateways, industrial IoT platforms and smart building infrastructure.
Rapid prototyping, proof of concept, first electronic product — from idea to validated prototype, fast.
Energy management, low-power electronics, environmental measurement systems and smart grid.
Rare in a design office: Codium has an in-house RF specialist, with the measurement equipment needed to tune and pre-qualify antennas and RF front-ends right here.
Patch, PIFA, dipole, slot — we measure, match and validate before going to an accredited laboratory. Checking EMC upstream avoids nasty surprises and costly back-and-forth. Zero subcontracting on this part.
The PCB is half of the product. The other half is the firmware that makes it work. At Codium, embedded development is in-house: the same engineer designs the board and knows what will run on it.
Microcontrollers under Zephyr, embedded Linux on application SoCs, custom BSPs, kernel drivers, IoT stacks (LTE-M, DECT NR+, BLE) — two worlds mastered, zero subcontracting on this part.
Electronic design is not subcontracted. Schematic capture, footprints, multilayer routing, DFM — every step is carried out by our engineers, with the same tools since the company was founded.
KiCad has been Codium's design tool since the very beginning. More than 300 boards designed, from 2 layers to 8-layer high-speed designs with controlled-impedance constraints. Deliverables go to manufacturing in under a week.
Codium designs your board, then you decide whether or not to have it produced with us. We recommend not separating design from production: it creates friction, extra costs and quality risks. With us, the engineer who designs your board knows the line that will build it.
This unique model guarantees designs made to be manufactured (Design for Manufacturing), reducing production problems and time to market. It is also what makes it possible to bring production back from Asia to France at no extra cost, provided the board is optimised from the design stage.
Discuss your project
No in-house team, workload too high, missing skills — there are many reasons to outsource. Codium works as an electronics service provider: you keep control of your project, we bring the engineering.
We work just as readily with hardware start-ups discovering electronics as with manufacturers who need one-off reinforcement on an existing product line.
Talk about your needsDesign, firmware, testing and industrialisation — we take care of everything from idea to series.
PCB layout, firmware for a specific function, RF pre-qualification — we step in on the part you're missing.
Validate an idea quickly, with a working prototype. We frame the need, prototype, and validate together.
Got a working prototype that isn't yet ready for series production? We take it over and industrialise it.
Everything you need to know about our design office.
Codium designs every type of electronic board: embedded boards, IoT and connected devices, wireless communication boards (Wi-Fi, Bluetooth, LoRa, 4G/LTE), power boards, industrial boards and systems on module.
We work on projects ranging from a simple connected module to complex multi-board systems.
The duration depends on the complexity of the project. A simple project (basic IoT board) can take 4 to 8 weeks from design to prototype delivery.
A complex project (multilayer industrial board, advanced communication) generally takes 3 to 6 months. We set out a precise schedule at the first discussion.
Yes. Codium offers the electronic board design study (schematic, layout, firmware, DFM, production-ready manufacturing deliverables): you then decide whether or not to entrust us with production.
We recommend Design + Production: the engineer who designs the board knows the line that will build it, which guarantees consistency between design and manufacturing, as well as better quality and repeatability. It is not mandatory, however.
Our engineers use professional electronic CAD (EDA) tools for schematic capture and PCB layout. Deliverables are provided in standard industrial formats: Gerber files, BOM (bill of materials), complete manufacturing file.
Yes. Codium can take over an existing design to improve it, migrate it to new components, fix problems or prepare it for industrialisation.
We ask for the project source files (schematic, PCB, bill of materials) to assess feasibility and make you a proposal.
Yes. Codium works as an electronics subcontractor: you keep control of your project, we bring the team and the skills. Unlike an isolated freelance engineer, you benefit from a multidisciplinary team — schematic, PCB layout, firmware, RF — with a single point of contact.
We work on a complete project (from A to Z) just as readily as on a targeted one-off reinforcement assignment.
Yes. Codium works across several sectors: industry and special-purpose machines, medical (sensors, connected monitoring), automotive (telematics, geolocation), IoT and hardware start-ups. We adapt our approach to the regulatory constraints of each sector (RoHS, CE marking, IEC 60601 for medical).
Each project starts with an initial discussion to identify the specific constraints from the design phase onwards.
Let's talk about your project in a first 30-minute discussion — no commitment.