S14: Smart Weather Clock
Contents
Grading Criteria
- How well is Software & Hardware Design described?
- How well can this report be used to reproduce this project?
- Code Quality
- Overall Report Quality:
- Software Block Diagrams
- Hardware Block Diagrams
- Schematic Quality
- Quality of technical challenges and solutions adopted.
Project Title
Abstract
We plan to make four nodes of Weather Clocks that can communicate with each other as well as access the real-time weather from the Internet. The clocks also measure the indoor Temperature and the Humidity. All this information is displayed on a user-interactive graphic LCD with touchscreen. Each node can access the information of every other node as requested by the user. And of course, they also display the time.
Objectives & Introduction
- The main objective is developing a custom wireless protocol using the Nordic Wireless Mesh Network that can be used for communication of the four nodes.
- We also plan to access the real time weather information from the internet. The user can input the location of the city, and our clock will fetch the data from the internet and display it. To implement this, we have decided to use the "Electric IMP". We are giving our clocks the IoT (Internet Of Things) functionality so we can access our clocks from virtually anywhere.
- To make the clocks interactive, we would be using a Graphic LCD with touchscreen(uLCD-32PTU from 4D systems) and design a beautiful GUI. The user can select what information he wishes to see by clicking the icons. The user can also access the information from the other three nodes. The LCD would be interfaced on UART.
- To measure the indoor temperature and humidity, we would be using the DHT-22 sensor which can measure both. It's a One-wire sensor which sends out the data in pulses when requested. Measuring the length or time period of these pulses tells us if the data is logic '1' or '0'.
- All weather information will be logged in the Flash memory and will also be displayed on the graphic LCD as a graph of the parameter v/s time when requested by the user.
Team Members & Responsibilities
- Akshar Ranka
- (Electric Imp and LCD interface)
- Dhaval Parikh
- (Hardware design and sensor interface)
- Huzefa Siyamwala
- (Wireless Communication and software integration)
- Raashid Kheruwala
- (Wireless Communication)
Schedule
| Sr. No | Start Date | Projected End Date | Actual End Date | Task | Status |
|---|---|---|---|---|---|
| 1 | 3/1 | 3/7 | 3/7 | Finalise Component listing and Order Placement | Order Placed |
| 2 | 3/8 | 3/15 | Study of nordic wireless, Graphics LCD, electric Imp | Components Received. Testing begins! | |
| 3 | 3/16 | 3/21 | Unit Testing for Graphics LCD, Algorithm and interface of Temp and RH Sensor | Made basic GUI on graphic LCD. Can send and receive data from LCD. Facing problems with Sensor! Working on it. | |
| 4 | 3/22 | 3/28 | Getting Data from internet using Electric Imp | Data successfully received from Electric Imp using Openweather.org API's. Real-time weather info now available! | |
| 5 | 3/29 | 4/4 | Integrating peripherals with SJ-One, Establishing communication between 4 nodes | Delay in integrating peripherals as sensor not working as desired. Will be done soon. Protocol defined and wireless communication established successfully between 2 nodes. | |
| 6 | 4/9 | 4/15 | First phase of Testing / Happy path Testing | Integrated graphic LCD with the Electric Imp. Now displaying real-timer weather on the graphic LCD. Now working on the GUI. Problem with sensor found. Running behind by a week. | |
| 7 | 4/16 | 4/ 21 | Bugs Resolving | Issue with sensor resolved. Observed the data pattern on oscilloscope. Now working on reading data. Also working on communication between 4 nodes. | |
| 8 | 4/22 | 4/30 | Integrating the modules. | Sensor working perfectly. Electric Imp can access weather info from different cities. Now working on Hardware design, integration of all modules and bugs resolving. Back on track! | |
| 9 | 5/1 | 5/6 | Final Testing | Open | |
| 10 | 5/7 | 5/15 | Open |
Parts List & Cost
| Qty | Description | Manufacturer | Part Number | Total Cost |
|---|---|---|---|---|
| 1 | Serial TFT LCD - 3.2" w/ Touch | 4D Systems | uLCD-32PTU-GFX | $84.00 |
| 1 | Electric Imp Breakout board | Electric Imp | BOB-11400 | $20.00 |
| 4 | Humidity and Temperature Sensor- RHT03 | Sparkfun | SEN-10167 | $44.00 |
| 1 | SJOne Board | SJSU | - | $80.00 |
| 1 | Electric Imp card | Electric Imp | - | $0.00 |
| Total Cost | increasing! |
Design & Implementation
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Hardware Design
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Hardware Interface
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Software Design
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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
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My Issue #1
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Conclusion
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Project Video
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Project Source Code
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References
Acknowledgement
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References Used
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Appendix
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