Finally after some issues finding cutting tools, we were finally able to build the planter box. Pictures are shown below. It is 8 feet by 4 feet and is raised about nine inches off the ground to preserve the growing space underneath for when we have to remove our project.
Some progress was also made on the real time monitoring system and the output from the Photon board. The Photon now outputs real time data every one minute to Dweet.io and our website auto refreshes the readings from our sensors every minute using a jQuery setInterval function. It now looks something like this.
In the future we will have more data points posted, each according to the quadrant of the planter.
Looking forward, we have an order sent out for analog muxes and water sensors. Since the photon board only has so many analog inputs, we will need a way to select which we want to read at a certain time. The water sensors will allow us to monitor our soil moisture.
We are also working to figure out a system to control the watering of the planter. Since automating a PVC valve proved to be pretty difficult due to how tight the valve is, we are playing with some other ideas. It will most likely implement a gravity-fed drip system where we control the flow out of an elevated reservoir.