alt Hacker NewsShow 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)
- electronics: designed in KiCad
- 3D models: designed in CadQuery
- software: written in 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-terrariumComments
what's the total cost of building this? and how long would it take?
This is very cool. You've done a great job with the instructions. I understand why you didn't write much about the best plants, but for those of us who are new to terrariums could you share a link about where I could learn about terrarium-appropriate plants and where to acquire them?
It would be nice to see the default dimensions of this thing on the landing page.
This is a really cool project thank you for sharing.
I'm prototyping my own similar kind of thing right now - an enclosure for growing culinary mushrooms - so seeing how you've used and attached the humidifier discs is really useful inspiration.
On humidification - have you considered decontamination for the water? I think bacteria and scum build up is an issue, and I've seen heavy duty equipment incorporate e.g. a submerged UVC light for trying to keep it clean. I wonder whether it's possible to do similar on a small scale by using a UVC LED (obviously need to be careful with safety though)
This is awesome! So much better than that MiT openAg thing.
I don’t think LEDs work. Don’t you need full spectrum lighting for a terrarium?
Ive always wanted to do something like this. Nice!
oh wow. I really want something like this at my desk.
I may have decided on my next project!
I like it, but it is not mostly 3-D printed.
Well built and a great write up!
Addressing some of the comments/concerns in your documentation:
* To protect the ultrasonic mister from bad firmware frying it, you could probably replace R6 with a sufficiently sized capacitor to make an effective DC block
* I've also had issues with a thermal sensor just reading board temp, best solution is to make the sensor a separate board. Short of that, one can mill slots around it and reduce copper pour to reduce thermal conductivety from the PCB.