Community Corner – January 23, 2015: The Featured Projects from this Week
Featured Adafruit Google+ Community Project
(Note: Google+ login required.)
Thanks to Mark Miller for sharing a detailed description of his Project P.L.A.N.T. (Programmable Light And Nutrient Terrafarmer). I love this idea! Especially as someone who manages to kill every house plant in my path.
Project P.L.A.N.T.(Programmable Light And Nutrient Terrafarmer) or grow cell for short. I used this last year to grow ornamental pepper plants and it worked very well. Normally my indoor plants die of neglect in very short order-I forget to water them, or put them back in the window sill for light.
I set out to make a system that would sense what the plants needed and furnish it without me remembering…I can remember 1000 data sheets full of info, but the plants die because I just never take the time to check on them. Not sure why I bother really. I do all my harvesting in the grocery store isles anyway….
The framework has a narrow footprint so it sits well on the window sill(despite the best efforts of the cats to play in them) and makes use of natural sunlight when available. A photosensor brick detects when the light is low or dark and tells the microprocessor to turn on the grow light under the top hood. Moisture sensor keeps track of soil hydration and signal for the solenoid valve to let water run down the sprinkler tube. A line laser located on the right side shines a beam across a row of vertical sensors on the left to detect grow progress. It comes on for ten seconds twice a day to secure this measurement. Everything from the start is controlled by microprocessor through firmware. Three firmware settings are used. The first is for initial planting. This just keeps the soil hydrated to get the plant out of the soil. The second firmware is switched in when the plants begin vertical growth. The third is a spare socket(eproms) in case I need an emergency program change for some reason(happens here and there the first cycle).(read more)
Featured Community Project from the Adafruit Blog
Thanks to Eric for sharing his great project on show and tell! Check out more videos from Eric here and his site here. (read more)
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.