Here is a test of the survey I plan to post so far:
What size should the MVP be?
- Minimum Size for one plant (leafy green)
- Same as PFC V2
Minimum sensing requirements?
- Temperature (Air)
- Temperature (Water)
- Humidity (Air)
- USB Camera (Aerial)
Minimum actuation requirements?
- On/Off Relay (blinking LEDs or 120V relay)
- Variable Actuation (Thermostat)
@wsnook In your lettuce dataset, how did you remove all images without light?
@yusuf.khan.su I haven’t made any hard decisions yet on the frame/skin. I do think though that PVC is probably the cheapest common material we can use to make a frame. I also think that some sort of reflectivity is a very important aspect. I would prefer not to require the user to paint/coat anything which is why Mylar has been very appealing. After I get feedback from the surveys and have made more decisions based on local prototyping I will update the wiki.
Point of clarification: when you say “MVC” what exactly are you referring too? I’m going to assume you mean Minimum Viable Computer or Concept, pardon me if I’m being naive.
I defined at the start of this post “It is for this reason that I propose we develop our MVP to be designed by the average hobbyist maker, and is intended to be operated by an elementary school teacher with the help of their class.” That being said, I am inclined to start to agree with you that our true MVP is just for makers. Could you elaborate more though on what you see the differences between a simpler PFC and an MVP to be?
I love the simple bottle design. This is something we had discussed locally doing as a teaching exercise or a classroom experiment, I think @TechBrainstorm has done something similar as well. That’s very interesting that your camera is day/night. Does the camera use the two bulbs on the side for night lighting? Or is there some other method for night vision, also it isn’t wide angle, correct?
I definitely think there are people who would appreciate if you posted a little guide to doing the plastic water bottle. I also love the idea of using LED’s as actuators for testing.I’m also curious your results as it grows and whether or not you experience disease or are able to keep a healthy root zone. Can you provide a link to your lights? I’d be curious to see if they’re powerful enough.
Absolutely love this idea. What a great idea to enable to the software development and control functions to be defined in parallel to the hardware and system design without requiring people to have all of it in front of them.
On the subject of temperature sensors, @webbhm where did you get your SI7021 & for how much? DHT11’s are common and cheap, Si7021 seems like a fine alternative so long as I2C is easy and on the table.
Will reply to the rest of the comments in a bit, and then post the survey questions. I appreciate everyone’s active participation, this is quite a lot to digest!