Cassiopeia Limited is a Hong Kong registered company established by Tom Tobback in 2014.


Full stack development: from PCB design to web platform

We provide customised embedded systems for industrial automation and IoT projects, using platforms such as Arduino/Industruino, ESP32, Raspberry Pi.

Experience in C++, Python, Django, OpenWRT, Modbus RTU and TCP, MQTT, ThingsBoard, DMX, LoRaWAN with TTN and Helium, NDI, MIDI and more.

Reference projects include:

  • Building Management System for energy and utility monitoring
  • Modbus communication interfacing
  • Industrial MQTT data logger
  • IoT applications with LED matrix and EPD
  • Retail traffic counting

For more info, contact:


EDUCATIONAL SERVICES around the Arduino platform for electronic prototyping (including for kids):

We aim to get people, young and old, excited about the possibilities of making, without adding to the mountains of electronic waste. No plastic toys piling up on the shelves. All our workshop projects use a minimal set of components that can be re-used for different projects, for years and years. The same components are used in professional prototyping. Understanding electronics can enable us to fix broken stuff. Be creative with technology.
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