1. Team 22 Aeroponic Growth Chamber Team: Daniel Wright – CprE/EE Chris Reeve – CprE Mohammed Rahim – EE Zach Davis – CprE Advisor/Client: Professor Tim Bigelow

2. Description and Overview A simple and affordable aeroponic plant growth chamber to study the effect of sound on plant healing and growth.

3. Functional Requirements  Light radiation in the Photosynthetically Active Radiation (PAR) spectrum (400 to 700 nm).  Air velocity between 0.3 and 0.7 m/s.  Optimum chamber temperature of 68  F during light hours, and 77  F during dark hours.  Use Hoagland solution Type I.  The pH should be maintained between 5.5-6.5.  Capability to administer sound (noise).  Sound level 90-100 dB.  Frequencies in the 1-16 kHz octave bands.  Capability to control and monitor various environmental parameters from a remote server.

4. Non-functional Requirements  Monitor, measure, and report the following parameters as required by NCERA-101:  Atmospheric moisture inside the chamber (Relative Humidity (RH))  pH and Electrical Conductivity (EC) of the nutrient solution  Substrate (air)  Chamber properties: Specifications (floor area, dimensions) Barrier beneath lamps (whether present and its composition) Air flow (whether up, down or horizontal)  To build a web interface to monitor and control various physical parameters.

5. Model

6. Implementation

7. Command Line Interface Front End (CLIFE)

8. Web User Interface

9. Central Server Program

10. Communication  Wireless XBee  Serial Protocol  JSON format

11. Testing and Documentation  Strategic Unit Testing  Usage Testing  Long run stability testing  Code Documentation Pages Code Documentation Pages  Doxygen  Epydoc

12. PCB

13. Sensors  Temperature - TI TMP100  Humidity - DHT22  Water gauge  CO 2 - MG811

14. Float Sensor

15. Sound  Generation  Amplification

16. Questions?