S17: Smart Planter

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Revision as of 15:37, 25 May 2017 by Proj user9 (talk | contribs) (→‎Parts List & Cost)

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Smart Planter

Abstract

This project aims at developing an automatic irrigation and lighting system for plants. An Android app allows a user to remotely monitor and manually control the watering and lighting for the plant.

Objectives & Introduction

The SJOne board sends sensor readings to an Android app through a server. The Android app can also send commands to the SJOne board through the server (such as turning the water pump on or off).

An Android Things app runs on a Raspberry Pi 3 to provide Internet connectivity to the SJOne board and to get timestamps of when the plant was last watered (future enhancements can include more useful features with APIs from Google). The two boards communicate over UART.

Team Members & Responsibilities

  • Sona Bhasin
  • Johnny Nigh
    • Android app
    • Server application
    • Android Things app
    • Communication between the SJOne and Android Things app
  • Thrishna Palissery
  • Hugo Quiroz

Schedule

Week # Start Date End Date Task Status Actual Completion Date
1 03/14/2017 03/21/2017
  • Finalize the components and interfacing protocols.
 Completed 03/23/2017
2 03/24/2017 04/04/2017
  • Order Project Components.
 Completed 04/06/2017
3 04/04/2017 04/14/2017
  • Prepare project schematic and design PCB.
  • Interface Raspberry Pi with SJ One for communicating with Android app.
 Completed 04/15/2017
4 04/04/2017 04/11/2017
  • Finalize the wiki schedule.
 Completed 04/10/2017
5 04/11/2017 04/28/2017
  • Interface temperature and humidity sensor with single bus protocol.
 Completed 04/22/2017
6 04/11/2017 04/25/2017
  • Control and read actuators and sensors using GPIO.
 Completed 04/25/2017
7 04/11/2017 04/28/2017
  • Interface LCD display to SJ-One using UART.
 Completed 05/05/2017
8 04/18/2017 04/30/2017
  • Interface flow and rain sensor to SJ-One board.
 Completed 04/30/2017
9 04/20/2017 05/05/2017
  • Interface soil moisture sensor to Sj-One board via its ADC.
 Completed 04/28/2017
10 05/06/2017 05/10/2017
  • Integrate all components and test.
 Completed 05/12/2017
11 05/10/2017 05/15/2017
  • Final testing and resolution of problems if any.
 Completed 5/19/2017
12 05/11/2017 05/21/2017
  • Final wiki artifact and prepare for Demo.
 Completed 5/25/2017

Parts List & Cost

Item # Description Distributor Qty Cost
1 SJOne Board 1 $80
2 Soil Moisture sensor Amazon 1 $5.99
3 Light sensor Amazon 1 $8.99
4 Rain sensor ebay 1 $1.99
5 Temperature and Humidity sensor Amazon 1 $7.99/4 pieces
6 DC water pump Amazon 1 $12.99
7 Flow meter Amazon 1 $10.99
8 Raspberry Pi 3 Amazon 1 $36.78
9 Voltage regulator (3.3V) Sparkfun Amazon 1 $1.95
10 Voltage regulator (5V) Amazon 1 $7.99/12 pieces
11 LCD display (20x4) Amazon 1 $32.10
12 Lamp  ? 1 $
Total: $207.76

Design & Implementation

The design section can go over your hardware and software design. Organize this section using sub-sections that go over your design and implementation.

Hardware Design

Discuss your hardware design here. Show detailed schematics, and the interface here.

Hardware Interface

In this section, you can describe how your hardware communicates, such as which BUSes used. You can discuss your driver implementation here, such that the Software Design section is isolated to talk about high level workings rather than inner working of your project.

Software Design

Show your software design. For example, if you are designing an MP3 Player, show the tasks that you are using, and what they are doing at a high level. Do not show the details of the code. For example, do not show exact code, but you may show psuedocode and fragments of code. Keep in mind that you are showing DESIGN of your software, not the inner workings of it.

Implementation

This section includes implementation, but again, not the details, just the high level. For example, you can list the steps it takes to communicate over a sensor, or the steps needed to write a page of memory onto SPI Flash. You can include sub-sections for each of your component implementation.

Testing & Technical Challenges

Describe the challenges of your project. What advise would you give yourself or someone else if your project can be started from scratch again? Make a smooth transition to testing section and described what it took to test your project.

Include sub-sections that list out a problem and solution, such as:

My Issue #1

Discuss the issue and resolution.

Conclusion

Conclude your project here. You can recap your testing and problems. You should address the "so what" part here to indicate what you ultimately learnt from this project. How has this project increased your knowledge?

Project Video

Project Source Code

References

Acknowledgement

I (Johnny Nigh) would like to thank Michael Nigh for his help with setting up the server and help with the basics on the Socket.IO JavaScript library.

References Used

Appendix

Future enhancements:

  • Automatically get the timezone based on the location of the board that is running the Android Things app (using the Google Maps Timezone API).
  • Add push notifications.
    • I.e. a soft watchdog in the SJOne application can tell the Android Things app to alert the user (if a possible failure has been detected).
  • Add support to turn watering and lighting on or off through voice commands (using the Google Assistant SDK).
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