Show HN: Oasis – An open-source, 3D-printed smart terrarium

Show HN (score: 141)

Found: June 24, 2025

ID: 39

Description

Show HN: Oasis – An open-source, 3D-printed smart terrarium See the website for a demo video: https://oasis-terrarium.com

This project is an enclosure for growing plants. Features include:

  - high-power LED lighting
  - a built-in water tank and mister
  - fans for airflow
  - temperature and humidity sensing
  - wi-fi connectivity and a web-based interface for control and monitoring (see https://oasis-terrarium.com/docs/usage_guide/#web-interface)

The entire project is open-source:

  - electronics: designed in KiCad
  - 3D models: designed in CadQuery
  - software: written in Rust

I initially started this project during COVID and built a working prototype using a Raspberry Pi and off-the-shelf parts. The first prototype worked, but was pretty rough. Several months ago, I picked up the project again and began a complete re-design. After two rounds of circuit board design and countless iterations of the 3D-printed parts, I'm finally happy with the results. Along the way I learned a lot about electronics design and fabrication, 3D modeling, and Rust.

Happy to answer any questions - thanks for checking it out!

Here are some direct links to parts of the project you may find interesting:

  - demo video: https://oasis-terrarium.com
  - detailed build guide with pictures: https://oasis-terrarium.com/docs/build_guide/
  - interactive 3D model: https://oasis-terrarium.com/docs/3dmodel/
  - detailed info on electronics design: https://oasis-terrarium.com/docs/electronics/
  - 3D-printable models: https://www.printables.com/model/1315117-oasis-smart-terrarium

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