In May we held our fundraiser and were able to raise $5263 for our project. This enabled us to make great progress and we are so grateful to all the people who are supporting us in this project.
In our own vertical farm we have been able to install rack shelving, for both seedlings and working space. We have used white spectrum LCD strips for the seedlings and RGB lighting for the leafy greens. We have installed temperature control using an air conditioner with timer, wifi and dry mode. After discussion with the team at Perfect Air, the simplest solution seemed to be installing a humidity sensor with wifi and an alarm. If the alarm sounds we can set the air con to dry mode for a short time. Once we have an idea of how often this happens, we can include it in the timer programming. Additionally we are adding a fan input and passive exhaust to change out the fresh air four times a day on a simple plug in timer.
These simple methods keep the build affordable. In time, it would be great to move into a fully automatic system such as the Intelliclimate from Autogrow and the dosing controllers from BlueLab. However part of our mission is to work out a design for microbusinesses, so being able to make this work with simple yet effective methods is key.
Our design proposal has been submitted to our potential education partner and we are hopefully awaiting approval. We were able to find a way to simplify the kits so they are less expensive and not as big to ship. It's important to realise that we can't teach kids that agritech is the future without there being jobs and businesses to step in to. Being able to show video of a working farm gives them something to aspire to while they build their own kits.
In an exciting turn, we realised that using rockwool cubes is not good for the environment and started sourcing an alternative. A small amount of research identified wool as being a super grower, a great holder of water and slow to breakdown even in moisture. We are now experimenting to see if we can use wool as our growing medium rather than the plastic sponges that come with the kits.
Next steps are to install the electrical connections, attach the lights to the hydroponic kits, and start growing some seeds in humidity domes. We are held up slightly by the difficulty sourcing parts for the fresh air fans, but will just keep moving forward meanwhile.
Thanks again and stay tuned for the next great episode of Build, Learn, Grow, Earn!