Embedded firmware development for ARM Cortex-M

Carlos BhattEMC Engineer · Mumbai, India4.9(184)445 orders deliveredDesign

Scope of this service

Bare-metal or RTOS firmware with drivers, a documented API and a unit test suite, written so the next engineer can maintain it without archaeology.

What you provide

Hardware schematic
Functional requirements
Communication protocol spec
Toolchain preference

What you receive

Firmware source code
Build & flash instructions
API documentation
Unit test suite

What is not included

Hardware design
Production programming
Safety certification

Packages

Basic

Starter scope$840

3-day delivery1 revision

Firmware source codeBuild & flash instructions

StandardMost chosen

Full deliverable set$2,270

7-day delivery2 revisions

Firmware source codeBuild & flash instructionsAPI documentation

Premium

Package + review meeting$5,260

17-day delivery3 revisions + 30 days support

Firmware source codeBuild & flash instructionsAPI documentationUnit test suiteReview meeting (60 min)Coordination with your other disciplines

Add-ons

Priority delivery (halve the timeline)+$335

Extra revision round (+2 days)+$185

Editable native source files+$150

60-minute technical review call (+1 day)+$170

Technical specification

Software used

Standards & codes

Industries

Suits project scale

Professional sign-off is a separate scopeThis listing delivers engineering work, not certification. Platform verification is not a licence to practise, and no badge here authorises stamping or sealing in any jurisdiction. If your submission requires a registered professional, engage one registered where the project is located.

Frequently asked

What exactly do I need to provide before you start?

To begin I need: Hardware schematic; Functional requirements; Communication protocol spec; Toolchain preference. If anything is missing I will tell you within the first working day rather than guessing and building on a wrong assumption.

Can you stamp or seal the drawings for my jurisdiction?

Not through this listing. Platform verification confirms credentials; it is not a licence to practise. If your jurisdiction requires a stamped submission, hire a locally registered engineer for sign-off — I can prepare the package so that review is straightforward, and I can recommend how to scope it.

Which standard will you design to?

I normally work to IEC 61508, IEC 61439, IPC-2221. Nominate your standard and jurisdiction in the brief and I will confirm before starting; the design basis memo records the choice explicitly.

What if the scope grows once you see the files?

I raise a change request with the cost and schedule impact before doing the extra work. The scope is never silently expanded, and you approve any change before it becomes billable.

Do I own the output?

Yes. On final payment the deliverables and their IP transfer to you. Native source files are included in the Premium package or available as an add-on.

Reviews

4.54.54 reviews · 75% would hire again

Technical quality4.5

Accuracy4.5

On-time delivery4.8

Communication4.7

Documentation quality4.4

Scope management4.5

Meridian DevelopmentsIndia · BOM · Large project

4.72 weeks ago

The drawings were coordinated and clean. One revision was needed after our architect changed a grid line late, which was handled as a change request with the cost stated up front rather than absorbed and argued about later.

Technical quality4.3Accuracy4.2On-time delivery4.9Communication4.7Documentation quality4.7Scope management4.3

VP Product, Aurora BioSystemsIreland · BOM · Micro project

4.25 months ago

Complete deliverable set, properly revision-controlled, native files included as agreed. The handover call was genuinely useful rather than a formality.

Technical quality4.4Accuracy4.6On-time delivery4.8Communication4.9Documentation quality4.2Scope management4.7Would hire again

Plant Manager, Vantage Process GroupNetherlands · Schematic · Micro project

4.41 month ago

Technical quality4.4Accuracy4.5On-time delivery4.8Communication4.6Documentation quality4.4Scope management4.3Would hire again

Pinnacle FacilitiesUAE · Schematic · Small project

4.51 month ago

Complete deliverable set, properly revision-controlled, native files included as agreed. The handover call was genuinely useful rather than a formality.

Technical quality4.8Accuracy4.6On-time delivery4.6Communication4.7Documentation quality4.2Scope management4.7Would hire again

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Scope of this service

Bare-metal or RTOS firmware with drivers, a documented API and a unit test suite, written so the next engineer can maintain it without archaeology.