What is the minimum quantity?

At prototype stage 1–5 units is normal. A small series usually starts at 20 — that is where the stencil and setup cost begins to pay for itself.

Who buys the components?

Usually we do — sourcing to the BOM, choosing alternatives and customs included. You can buy them yourself if you prefer, in which case only assembly and testing stay with us.

Do you supply the enclosure too?

We either select and adapt an off-the-shelf enclosure or make a custom one by 3D printing. Moving to injection moulding for a large series is quoted separately.

Is every unit tested?

Yes. A functional test rig is built and every unit goes through the same procedure. Test results are stored against the serial number.

How do we move to a large series?

After the first batch you get a DFM/DFA report — which changes make mass production cheaper and faster. Then work with the factory begins, and we prepare the documents.

Do you accept small prototypes or research projects?

Yes. We accept small proof-of-concept or research projects. Send your project description — I'll provide price and timeline estimate.

Which EDA tool do you use for PCB design?

Primarily KiCad (open-source, commercially usable) and Altium Designer. If the client has a specific requirement, other tools (Eagle, DipTrace) are also possible.

Is firmware limited to STM32 and ESP32 only?

No. STM32 and ESP32 are what we work with most, but Arduino (AVR), Raspberry Pi Pico (RP2040), Nordic nRF, Microchip PIC, Atmel are also possible. We recommend optimal MCU based on project requirements.

Do you sign NDAs (Non-Disclosure Agreements)?

Yes. Frequently required in engineering projects. We work with either a standard NDA template or your company's template.

Prototyping and Small-Series Production

Prototyping and small-series production — PCB assembly (PCBA), stencil and reflow, component sourcing, enclosure assembly, functional testing and batch traceability.

Typical project:A first batch of 20 units, with testing and packaging· 4–8 weeks

Project

Tell us briefly about the project: what you want to build, which functions it needs, the rough timeframe. If we have done something similar we will send an example.

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Overview How we work What this area covers What you receive Technologies we work with From concept to production Frequently asked questions Other engineering areas Project

From the first working sample to a small series: PCB assembly (PCBA), stencil and paste, component sourcing, enclosure and assembly, functional testing. DFM optimisation, documentation and batch traceability.

There is a long distance between a working prototype and a sellable product. A prototype works once; a series has to work every time, on every unit. That transition needs a process, not a design: the same components, the same assembly order, the same test.

We assemble the first batch ourselves — stencil, solder paste, reflow, then functional test. This stage exposes where the design does not suit production: components placed too close, an unreachable test point, a connector facing the wrong way. Fixing those before the series costs several times less.

In small series the biggest losses come from component sourcing. One part unexpectedly leaving the market halts the whole batch, so alternatives are identified in the BOM for critical parts in advance.

How we work

What this area covers

Building and assembling the first prototype batch
PCB assembly (PCBA) — SMD and through-hole
Stencil, solder paste and reflow process
Component sourcing and alternative selection
Enclosure selection, 3D printing and mechanical assembly
Functional test rig and test procedure
DFM and DFA optimisation for the series
Production documents — assembly drawing, work instruction
Batch traceability and serial numbering
Firmware flashing in production
Packaging and labelling
Dealing with the factory and matching files to their rules

What you receive

An assembled and tested prototype batch
Functional test rig and test procedure
Production documents — assembly drawing, work instruction
BOM, including alternative components
DFM/DFA report — changes needed for the series
Enclosure and mechanical assembly solution
Batch traceability and serial numbering scheme
Packaging and labelling solution

Technologies we work with

PCBASMDReflowStencilDFMDFATest rigSourcingBOM3D printingEnclosureSmall seriesFlashingPackaging

From concept to production

01
Consultation and Requirements Analysis
We jointly define the project's goals, functional requirements, and budget/timeline constraints. NDA signed if needed.
02
Architecture and Schematic Design
System architecture, part selection, schematic drafted. Initial BOM and PCB block diagram agreed upon.
03
PCB Layout and Firmware
PCB design (KiCad/Altium), signal integrity, EMC checks. Firmware developed in parallel. Interim reviews.
04
Prototype and Testing
First PCB batch assembled and lab-tested. Validation with firmware. Required adjustments.
05
Production and Support
DFM optimization for mass production. Documentation, user manual, long-term technical support.

Frequently asked questions

Other engineering areas

Device Restoration and Reverse Engineering→R&D, Consulting and Freelance→Courses, Mentorship and Corporate Training→Embedded Systems and Firmware→Schematic and PCB Design→Software Development and IoT Platforms→

Have an idea? Let's talk

Small prototype, medium-scale R&D, or long-term technical support — regardless of your project size, I respond within 48 hours.

WhatsApp (+994 51 411 13 12)WhatsApp (+994 70 802 00 20)Telegram ← All services

What this area covers

Building and assembling the first prototype batch

PCB assembly (PCBA) — SMD and through-hole

Stencil, solder paste and reflow process

Component sourcing and alternative selection

Enclosure selection, 3D printing and mechanical assembly

Functional test rig and test procedure

DFM and DFA optimisation for the series

Production documents — assembly drawing, work instruction

Batch traceability and serial numbering

Firmware flashing in production

Packaging and labelling

Dealing with the factory and matching files to their rules

What you receive

An assembled and tested prototype batch

Functional test rig and test procedure

Production documents — assembly drawing, work instruction

BOM, including alternative components

DFM/DFA report — changes needed for the series

Enclosure and mechanical assembly solution

Batch traceability and serial numbering scheme

Packaging and labelling solution

From concept to production

Consultation and Requirements Analysis

We jointly define the project's goals, functional requirements, and budget/timeline constraints. NDA signed if needed.

Architecture and Schematic Design

System architecture, part selection, schematic drafted. Initial BOM and PCB block diagram agreed upon.

PCB Layout and Firmware

PCB design (KiCad/Altium), signal integrity, EMC checks. Firmware developed in parallel. Interim reviews.

Prototype and Testing

First PCB batch assembled and lab-tested. Validation with firmware. Required adjustments.

Production and Support

DFM optimization for mass production. Documentation, user manual, long-term technical support.

Frequently asked questions