Final Progress All sensors work Full-scale unit with plants - PowerPoint PPT Presentation

Strawberry Hydroponics with Monitoring System Final Review

Final Progress ● All sensors work ● Full-scale unit with plants built on Phil’s farm ● EC sensor still not electroplating ● EC sensor accurate to plus or minus 150 PPM ● Relay cutting pump off with use of water level sensor

Personal Observations Ryan: Very easy-to-build design but might not Thierno: Theoretically, scaling is feasible which is survive for more than a few years without great. What will happen to the structure and the replacement electronics in extreme weather? Ray: Electrical system is made comprehensible, but Jerry: Designing the software for the system seems could be more advanced if not limited by DIY form straightforward but implementing the code with the of implementation. external electronics prove to be a challenge Kevin: Mechanical system seems like it will function Nate: Simple design one all materials are purchased, well enough. Construction went smoothly enough, system has potential for leaks but can easily be confident Phil can replicate what we did. sealed. Electrical system could be made easier to implement with more expensive sensors

Potential Future ● Making this widely available allows for others to copy and improve upon the design ● Invest more? Hard to tell without knowing how well strawberries grow ● Higher quality sensors could be added such as temperature and a higher resolution water flow sensor ● Add more electrical outlets to electrical box ● Design will be iterated at least 4 more sets of 5 channels according to Phil. Possibly more after that will small variation on the design. ● Some sensors may not be helpful or accurate over time (flow, EC) ● Adjustable channels may still be a good feature to add. ● Best to experiment with slight variations (channels, slope, flow-rate) before iterating the design too much

What would we have done differently ● Potentially purchase all industrial grade sensors (Atlas Scientific), the cost of electronics would increase around 200-300 dollars but it would ensure very low maintenance electronically and would make electrical build much easier ● More focus on long term testing of sensors, 1 month was not enough to ensure they all worked 100% ● Could have added more features to system like easily adjustable channels, mixing of solution outside of channels, screen, etc.

Final BOM

Final BOM

Pictures

Pictures cont.

Pictures cont.

Updated Problem Tracking

Updated Problem Tracking