Digital Consulting SAS · Metz, France

Embedded R&D & mechatronics engineering.

From safety-critical Cortex-M firmware to a part in volume production. As a fixed-price project with a committed outcome, or as a senior engineer embedded in your team.

Thomas Legrand, MSc engineering, Supélec — 19 years in embedded R&D and mechatronics. Prix Félix de l'Innovateur 2017 (French national innovation award), ST Partner label (EZNOV), author of OpSy (open-source C++23 RTOS).

19 years
in R&D
30,000
units shipped
28
countries served
3
patents filed
3
national awards
From firmware to volume production, under one roof
STM32 electronic board designed in-house
Electronics design & firmware
Part machined on a 5-axis machining centre
CAD & 5-axis machining
Large-format CNC router designed and built in-house
Custom special-purpose machines
Integrated mechatronic product, from prototype to volume production
Integration & finished product
01

What I do.

Most embedded projects end up split between electronics, firmware and mechanics. Here the whole chain is held end to end.

Cortex-M firmware (C++23, RTOS) · Altium / Eagle PCB · in-house CAD and 5-axis machining · proven low- and mid-volume industrialisation
// 01

Cortex-M / STM32 firmware

C++23, HAL/LL, DMA, low-level drivers, RTOS, secure OTA bootloader, embedded cybersecurity (RED EN 18031 / CRA).

// 02

Sensor fusion & motion control

9-axis IMU, RTK GPS, UWB, advanced PID, magnetometer calibration, filtering.

// 03

Electronics design

Altium, Eagle, schematic and layout, DFM, EMC, in-house prototyping.

// 04

CAD & 5-axis machining

Fusion 360, Solidworks, in-house Haas VF-4SS, Mazak, TIG, CNC plasma.

// 05

Volume industrialisation

BOM sourcing, SMT pick-and-place and reflow line, end-of-line test and programming rigs, OTA.

// 06

Team leadership & agile

Teams of up to 10, Scrum/Kanban, projects distributed across FR / LU / NL.

02

Three ways to work together.

A deliverable to hand over, a senior engineer to bring in, or a team to bring up to speed.

Preferred

Fixed-price project

A defined need, a deliverable, a deadline: I take the project end to end and commit to the outcome.

  • Specification, electronics and firmware design, prototype
  • Validation, pre-production and documented handover
  • Scope, milestones and price fixed at order
  • Deliverables and intellectual property transferred to you
  • Also in short form: firmware audit or takeover, unblocking a stalled project, end-of-line test rig
Also possible

Long-term assignment

A senior R&D engineer embedded in your team for the long haul, seeing the assignment through.

  • Long-term commitment (1 to 3 years), firm availability
  • My own business runs in parallel, stated upfront — five years without dropping a single assignment
  • Hybrid presence: France, Luxembourg, Switzerland
  • Mentoring and skills transfer to your in-house team
For your teams

Training

Embedded engineering taught by someone who practises it daily — on your own products if you wish.

  • C, modern C++ (up to C++23), STM32 / Cortex-M, RTOS
  • Firmware architecture, C#, test tooling
  • On your premises, or subcontracted through your training provider
  • Course built to measure, from your own code and your real cases
03

A few projects, and where they ended up.

Long-term assignments, fixed-price projects and in-house products — each one with a clean ending.

Industrial product2012 – 2017
BRAIN / IKON flight stabiliser From prototype to product: secure firmware and OTA bootloader, PC configuration software, production test tool.
30,000+ units sold across 28 countries, placement line in operation.
Product — flight controllerEZNOV
Neuron — multi-platform flight controller A French flight controller running proprietary firmware. The first to fly helicopters, multirotors and fixed-wing aircraft on one common base, at a price with no equivalent.
Several thousand units sold. ▶ Watch the demo ↓
R&D + patents2015 – 2019
EzManta autonomous professional drone 25 kg drone with three tilting motors, centimetre-accurate GPS flight, Android mission-planning app.
2 patents filed · Innovation Grand Prize, outdoor robotics contest, Le Bourget 2017 — run by the French Directorate-General for Enterprise.
Long-term assignment2019 – 2022
ArcelorMittal — overhead crane optimisation Operations-research optimisation engines, Dunkirk and Florange sites.
2 years · deployed in production, full handover to the in-house team.
Long-term assignment2022 – 2024
BDR Thermea — HIL / SIL tooling for heat pumps Simulation and validation tooling, custom I/O board qualified for production, mentoring a team of four.
2.5 years · closed by mutual agreement, team fully autonomous.
Fixed-price engineeringreferences
R&D projects delivered Porcher Industries (multi-zone heated laminate) · MCVE Tech (heated plastics) · EDF R&D (dual-input water-heater supply, MPPT) · Tegesoft (CAN bus logger).
Committed outcome, documented deliverables.
Proof of deliveryongoing
EKI — welding tables made in France A product designed, industrialised and sold under our own brand: proof that I carry R&D through to volume production, in my own name and at my own risk.

Two products in flight:

Neuron — the multi-platform flight controller in action.
EzManta — interview on the official STMicroelectronics channel.
Why Digital Consulting

I design the electronics, write the firmware and machine the part.

The same person from the first schematic to volume production — not five suppliers passing the blame around.

A.

Cards on the table

Hard points, risks and costs are laid out at the scoping stage. You decide knowing exactly where you stand.

B.

Seen through to the end

My last two assignments ran 2 and 2.5 years, each closed in good order with a full handover to the in-house team.

C.

Proven industrialisation

30,000 units shipped, my own 5-axis machine shop. I also live the prototype-to-production step from the manufacturer's side, with EKI.

Passing it on

Training & mentoring

Mentor at EPITECH Nancy (Executive Education projects) and trainer for the official STMicroelectronics course at Station F. That experience is what sits behind the training offer above.

Awards & intellectual property

Recognition

★ Prix Félix de l'Innovateur 2017 ↗ ST Partner label held at EZNOV (as CTO) Innovation Grand Prize — Le Bourget robotics contest 2017 (DGE) Batimat Award 2019 BFS patents (FR + EP) 2× EzManta patents OpSy — open-source C++23 RTOS
Format
Fixed-price or long-term
Start
At short notice
Coverage
France · Luxembourg · Switzerland
Availability
Firm, contractual
04 · Contact

An embedded project to scope?

Describe your need in a few lines, or book a slot directly. Quick reply, in English or French.