DIY a stock tracking device

I will make some secondary market investments in my spare time. Usually these tasks can be done only in the mobile app. But I think it is also very interesting to use a hardware device to check stock information, so I made this project, hope you like it.

Features of the project

View real-time information of individual stocks, including，

• Real-time stock price
• Ups and downs
• Holding cost Number of shares

View the overall position information, including，

• Total assets
• Total profit and loss
• Profit and loss of the day
• Total yield

Hardware connection

The hardware setup is very easy, you only need to connect the I2C_LCD to the I2C interface on the Squama Ethernet, and connect the Suqama RJ45 interface to the router. If your router supports PoE, you don’t need to supply power via USB after the code is burned.

Software

This project uses Arduino for development. Before starting, you need to read wiki for Squama Ethernet and make some configuration.

The code for this project has been put on Github, you can download it here.

Open the demo code, you need to change something, as below:

#define NUM_STOCK  4       // How many stocks do you have
char stockCode[NUM_STOCK][20] = {"tsla", "gme", "ccl", "aapl"};     // stock code
int stockNum[NUM_STOCK] = {100, 200, 5000, 2000};       // how many do you have
float stockCost[NUM_STOCK] = {512.1, 20.5, 13.5, 76.3}; // holding cose
char stockName[NUM_STOCK][20] = {"TESLA", "GME", "CCL", "APPLE"};  // name

This code at Line 15~20.

You need to modify the above information and upload the code to Squama Ethernet, then it works.

Have fun.