Aethium
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About Aethium

Lasse-IT is
now Aethium.

A new name for what we have always done, and for what has been added: besides web and software, we now build hardware and the systems that connect it all.

Behind the technology

Lasse Houtenbos

Developer & maker

Education
Computer Engineering
Focus
Web · Embedded · Engineering
Company
Aethium
Chamber of Commerce
42161775
VAT ID
NL005546002B24
InterfaceAPIFirmwareHardware

The maker

Curious about
how things work.

I don’t just want to know that something works, but why. That’s why I enjoy building business software as much as a drone or a CNC machine.

Alongside my Computer Engineering studies at Inholland, I build complete platforms. That’s why I always look beyond a single part.

My favourite kind of project

Sensor data that travels through firmware and an API into a clear interface, where every step matters.

More about our approach

Built in practice

My projects are
my toolkit.

From browser to breadboard.

Software

Platforms for everyday work

Software for projects, inventory, bills of materials, client portals and invoicing.

  • KL-Systems
  • Operations Console
  • Verdiax
Connected

Devices that talk to the web

ESP32 firmware with sensors and cameras, remote updates and a custom device API.

  • Gridfinity Illuminator
  • ESP32-CAM QR
Low-level

Under the hood

C and C++ on microcontrollers, and embedded Linux with a custom kernel and drivers.

  • Embedded Linux ECU
  • ESP32
  • STM32
Control

Systems that move

Control systems and telemetry for drones, a CNC machine and an RC car.

  • KL-UAV / GCS
  • CNC Machine
  • RC Car
Making

Beyond the screen

Circuit boards, CAD and 3D-printed enclosures, with an eye on assembly and production.

  • Plant Monitor
  • Gridfinity Illuminator
Experiment

New interfaces

Experiments with AI for electronics design, computer vision and hand tracking.

  • EasyEDA Copilot
  • Handtracking
  • FlightRadar

Technical foundation

The right tools
for the problem.

Web

PHP · MySQL · JavaScript · HTML · CSS · REST APIs · authentication

Embedded

C · C++ · ESP32 · STM32 · Raspberry Pi · PlatformIO · OTA · real-time

Electronics

PCB design · sensors · displays · I²C · SPI · UART · power

Engineering

CAD · 3D printing · prototyping · testing · Git · architecture

Timeline

How I
got here.

  1. 2026 – now

    KL-UAV04 & Ground Control Station

    A drone with its own flight control, telemetry and ground station.

  2. Engineering

    CNC machine & RC car

    Mechanics, motor control and software that have to be precisely in tune.

  3. Deep dive

    Embedded Linux ECU

    A minimal Linux system with its own kernel, device tree and drivers.

Show the full timeline

  1. 2024 – now

    Computer Engineering

    Studies at Inholland covering embedded Linux, real-time computing and electronics.

  2. Prototypes

    ESP32 and sensor projects

    Including the Gridfinity Illuminator, a QR scanner and a Plant Monitor.

  3. 2023 – now

    From websites to platforms

    Custom websites grew into Verdiax, the Operations Console and KL-Systems.

  4. 2021

    Learning by making

    Started with PHP and MySQL, then moved into the physical world with electronics and robotics.

Core values

What you can
expect from me.

  1. Understand

    I find the real cause first and explain choices clearly.

  2. Ownership

    I look beyond the demo: security, management and maintenance count too.

  3. Keep building

    I learn by doing, testing and writing down what works.

Something in mind?

Get in touch