Hello,
I am creating a stock market ticker from an adafruit 32x64 display. Currently, I have the data sending very well from yahoo finance and have posted the code below. My only problem is that I would also like to send a command from python to tell it when to change the color of the text from red to green for stocks going up and down. If you have any suggestions for changing the color of the text when the stock price is lower the next day than the previous or ways to send two different strings to Arduino. Thanks!
/**
* Author: UseMyTools.Net
* Created: 2021.01.20
*
* (c) Copyright by UseMyTools.Net.
* MIT license
*
**/
#include <Adafruit_GFX.h>
#include <TimeLib.h>
#include <DS3232RTC.h>
#include <Wire.h>
/*
* Adafruit_GFX Core graphics library
* Written by Limor Fried/Ladyada & Phil Burgess/PaintYourDragon
* for Adafruit Industries.
* BSD license, all text above must be included in any redistribution.
*/
/*
* code snippet from Time_Message_ESP8266_Matrix-P4
* https://arduino-projects-free.blogspot.com/2020/08/time-message-esp8266-matrix-p4-weather.html
*
*/
#include <RGBmatrixPanel.h> // Hardware-specific library
#include <Adafruit_GFX.h> // Core graphics library
// Similar to F(), but for PROGMEM string pointers rather than literals
#define F2(progmem_ptr) (const __FlashStringHelper *)progmem_ptr
#define CLK 11 // USE THIS ON ARDUINO MEGA
#define OE 9
#define LAT 10
#define A A0
#define B A1
#define C A2
#define D A3
// Last parameter = 'true' enables double-buffering, for flicker-free,
// buttery smooth animation. Note that NOTHING WILL SHOW ON THE DISPLAY
// until the first call to swapBuffers(). This is normal.
//RGBmatrixPanel matrix(A, B, C, CLK, LAT, OE, true);
RGBmatrixPanel matrix(A, B, C, D, CLK, LAT, OE, true, 64);
uint16_t myRED = matrix.Color333(7,0,0);
uint16_t myGREEN = matrix.Color333(0,7,0);
uint16_t myBLUE = matrix.Color333(0,0,7);
uint16_t myWHITE = matrix.Color333(7, 7,7);
uint16_t myYELLOW = matrix.Color333(7,7,0);
uint16_t myCYAN = matrix.Color333(0,7,7);
uint16_t myMAGENTA = matrix.Color333(7,0,7);
uint16_t myShadow = matrix.Color333(4,0,7);
uint16_t myROSE = matrix.Color333(7,0,4);
uint16_t myBLACK = matrix.Color333(0,0,0);
uint16_t myCOLORS[9] = {myRED, myGREEN, myWHITE, myMAGENTA, myBLUE, myYELLOW, myCYAN, myShadow, myROSE};
String s;
//int textX = matrix.width(),
int textX = 14,
//textMin = sizeof(str) * -12,
textMin = -90;
void setup() {
Serial.begin(74880); //opens serial port, sets data rate to 74880 bps
matrix.begin();
matrix.setTextWrap(false); // Allow text to run off right edge
matrix.setTextSize(1);
setTime(19,52,50,24,12,21);
}
void display_footer()
{
matrix.setCursor(3, 25);
matrix.setTextColor(myBLUE);
matrix.print(day());
matrix.print("/");
matrix.print(month());
matrix.print("/");
matrix.print(year());
}
void display_header()
{
matrix.setCursor(13, 0);
matrix.setTextColor(myBLUE);
matrix.print(hour());
matrix.print(":");
matrix.print(minute());
matrix.print(":");
matrix.print(second());
}
void display_middle(){
int ypos = 12;
// Draw big scrolly text on top
matrix.setTextColor(myGREEN);
matrix.setCursor(textX, ypos);
matrix.print(s);
// Move text left (w/wrap), increase hue
if((--textX) < textMin) textX = 14;
}
void loop() {
matrix.fillScreen(matrix.Color333(0, 0, 0));
display_header();
display_middle();
display_footer();
// Update display
matrix.swapBuffers(false);
if (Serial.available()>0){
s = Serial.readString();
}
}
Python Code:
import yfinance as yf
import serial
import time
StockShares = ['SPY', 'DOW', 'AAPL', 'AMC', 'AMD', 'AMZN']
ser = serial.Serial('COM5',74880)
def printShare(share,name):
ser.write(name + ': *' + share.get_open()+','+share.get_price())
print (name + ': *' + share.get_open()+','+share.get_price())
time.sleep(.1)
def mainProgram():
x = 0
for stock in StockShares:
TickerSym = StockShares[x]
Ticker = yf.Ticker(TickerSym)
daily_increase = str(round(100 - (Ticker.info['open'] / Ticker.info['regularMarketPrice']) * 100, 2))
#ser.write (str.encode("99"))
#ser.write (str.encode(TickerSym+ str(Ticker.info['regularMarketPrice'])))
ser.write (str.encode(TickerSym + " $" + str(round(Ticker.info['regularMarketPrice'], 4)) + " %" + daily_increase))
print(TickerSym, round(Ticker.info['regularMarketPrice'], 4), "↑ %", daily_increase, "SENT")
x = x + 1
time.sleep(10)
mainProgram()
mainProgram()
