Live Stock Price Display with ESP8266

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  Circuit

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  API Data

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  Adafruit Display

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  ESP8266

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  Adafruit Display

Inspiration

I had trouble in viewing my favourite stock prices by taking out phone constantly, s I have build a 24x7 Display Stock Price Tracker so I can get updates regularly

What it does

It fetches Stock Price from FinnHub API and Displays it on Aafruit TFT Display using ESP8266

How we built it

• I first started with interfacing the Display with ESP8266 using the below pinout

• Then I coded the part to connect Wifi with ESP8266
• Further I created API key on FinnHub ,and tried parsing its data of stock symbol
• Then Calculated the Previous Price and Percentage of Fall or Rise and Displayed it with GUI functions.
• Added many Stock Symbols and then it automatically displays the data at API call per 3 seconds

Challenges we ran into

• API calling was tricky as compared to other languages as it didn't have support for JSON Parsing
• Using the Adafruit Display on ESP8266 as it was made as a Arduino Shield and Arduino Libraries.

Accomplishments that we're proud of

• Using the Display for First Time
• Creating a GUI for Display from scratch

What we learned

• Calling API in C++
• Connecting the Adafruit Display to ESP via SPI Communication

What's next for Live Stock Price Display with ESP8266

• Adding News Flashes in the Display using News API
• Adding Speaker for Alerts in cases of Market Crash or Price Fall
• Displaying Candle Graphs

Built With

• adafruit
• api
• c++
• esp8266