No longer using Sd card
Text File which SD card stores data
Key Issues & findings:
- Initially we planned to use an SD card to help store and monitor fish tank conditions and parameters over an extended period of time.
- However, as seen from the image above, the SD card will only store this data in a text file and it will be up to the user to figure out how to interpret and plot this data himself
- Hence, we decided to remove the SD card feature and find out another way (ThingSpeak) for the user to be able to access his data and have it displayed without the need for him to put in any effort.
THINGSPEAK COMMUNICATION
ThingSpeak Mainpage
Key Issues & findings:
Field 1 ~ Graph displaying TDS of fish tank over-time. Data is taken in every 25 seconds.
Field 4 ~ Real-Time pH of fish tank
Field 5 ~ Real-Time pH of clean tank
- Initially we planned to use an SD card to store information which the user can then use to plot a graph for himself and study the changes in both pH and TDS of the system over time.
- However, we felt that this method over-complicates the steps the user needs to take just to study the parameters of his tank. This has led us to opt towards using ThingSpeak instead and capitalise on the IoT feature of our Arduino Uno Wifi Board.
- Advantages of ThingSpeak:
- ThingSpeak eliminates the need for the user to make his own Graph to plot his data. ThingSpeak can automate the plotting and recording of data for the user.
- There is no need to remove a SD card in order to obtain analyse the parameters. The system only requires Wi-Fi connection.
- ThingSpeak allows us to a ‘Change Water Indicator’ which tells the user when to fill up the clean water tank with water.
- Lastly, the user has access to ThingSpeak even when he is away from the fish tank, allowing him to monitor the parameters without being physically near the fish tank.
PCB Board design
Key issues & findings:
- We are attempting to design a PCB board to combat the amount of wires required to connect our entire system.
- The goal is to create a cleaner and more sleek product in the end with less dangling wires and allow for our electronics to be tucked away neatly.
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