Independent engineering practice

Engineering hardware that shapes tomorrow.

Embedded control, RF instrumentation and robotic systems. From the first schematic to a prototype you can inspect, measure and improve.

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Explore the practice

Illustrative project configuration

RF bandwidth: 100 kHz - 6.0 GHz
Firmware core: FreeRTOS / STM32H7
PCB target: 4-layer, 50 Ω controlled

Final specifications depend on the project and validation.

{ CAPABILITIES / LEARNING _ }

Understand the parts. Engineer the system.

A proposed learning programme across software architecture and connected hardware. Explore each outline, then discuss the training your team needs.

01 / 05

Fundamentals

Circuit reasoning, interfaces and firmware structure. Build the vocabulary to describe a complete system.

Discuss training

Lesson totals and durations are planning targets. Course delivery is subject to an agreed training scope.

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{ ARCHITECTURE _ }

Built for teams that can't afford mistakes

Define what a system must do. Make its interfaces explicit. Test the assumptions that matter. We bring firmware, electronics and mechanical design into one reviewable engineering process.

01 / Timing

Measure execution budgets

Record task timing, latency and the conditions of each test.

02 / Faults

Design recovery paths

Review watchdogs, error handling and safe states before integration.

03 / PCB

Document design rules

Agree the stackup, clearances and inspection criteria for each board.

Verification is specific to each build. Test reports and applicable standards are agreed in the project scope.

{ OUR INSTRUMENTS _ }

When standard tools fall short, we build our own instruments.

SCROLL TO REVEALSkip to tools

{ BENCH TOOLS _ }

Your data. Three useful tools.

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WORKSPACE 01 / 03

Observe

Inspect your measurements. See the trace, check its range and compare individual samples.

Numeric validation
Trace inspection
RMS and statistics

Open Observe

NO DATA LOADED

Bring your own CSV.

Import a time,value CSV from your test equipment or data logger.

Up to 48 KB. Kept in this tab.

01 / 03 Scroll to explore the next toolAccount uploads happen only when you choose Save.

{ SYNTAX _ }

A clear contract.
A measurable system.

Small modules. Explicit routes. Testable interfaces. Explore a minimal NestJS measurement API, from application startup to a structured response.

Read documentation

Optional starter example. The current 4TECH client platform uses Firebase. This code does not connect to a live instrument.

4TECH / API EXAMPLE

src/main.ts

1import { NestFactory } from '@nestjs/core';2import { AppModule } from './app.module.js';34async function bootstrap() {5  const app = await NestFactory.create(AppModule);6  app.setGlobalPrefix('api');7  await app.listen(process.env.PORT ?? 3000);8}910void bootstrap();

NestJS / TypeScriptExample only. No code runs in this preview.

{ SELECTED WORK _ }

From system questions to engineering work.

Explore the design decisions, project scope and available evidence behind RF instrumentation, robotics and embedded platforms.

NASA robotic scanner measuring an antenna mounted on an aircraft

RF instrumentation & automation

{ DOCUMENTATION _ }

What should your next system do?

Share the requirement, constraints and the outcome you need. We can define the scope and the questions to test together.

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Explore 4TECH

Engineering hardware that shapes tomorrow.