Overview
Things
Story

Setup
Code
Connections

Published August 12, 2020 © MIT

Live Coronavirus Stats Display

An oled displays how many cases, deaths, and recoveries for the coronavirus globally.

BeginnerFull instructions provided2 hours617

Things used in this project

Hardware components

DFRobot Gravity I2C OLED-2864 Display

Raspberry Pi Zero

Story

Get a live feed of number of cases, deaths, and recoveries of the coronavirus in the world displayed on an OLED screen using the raspberry pi.

Setup

From your raspberry pi's desktop click the raspberry pi icon in the top-left of the screen.

Then click on interfaces and enable I2C.

Open the terminal and install the necessary packages. (Please let me know if there are any I missed.)

sudo apt-get install build-essential python-dev python-pip
sudo apt-get install python-imaging python-smbus
sudo python -m pip install --upgrade pip setuptools wheel
sudo pip install Adafruit-SSD1306

Clone this repo.

git clone https://github.com/gadhagod/Live-Coronavirus-Updater

Code

Here is an overview of important parts of the code.

backend.py

Open backend.py

nano backend.py

Data is retrieved from SimpleCovidAPI.

 data = loads(requests.get('https://simplecovidapi.herokuapp.com/').text)

Then it returns each json object as a variable:.

return data['cases'], data['deaths'], data['recoveries']

To stop viewing backend.py hit control+x

main.py

Open OLEDVersion.py

nano OLEDVersion.py

main.py line 37:

font = ImageFont.load_default()

This will set the font to the default font. You edit this to your preferences.

main.py line 40:

draw.rectangle((0,0,width,height), outline=0, fill=0)

The line above clears the screen by filling it with a black rectangle.

main.py line 42:

cases1, deaths1, recoveries1 = backend.global_data.data_return()

This stores the number of cases, deaths and recoveries from backend.py into a 3 variables.

main.py line 50:

draw.text((x, top+20), recoveries1,  font=font, fill=255)

The first argument sets the coordinates to write to. The second is what to write. The third argument sets the font and the last sets the fill of the text.

Connections

The connections are very simple. Since the OLED is works with I2C, we use the SDA and SCL pins.

VCC - 5V

GND - GND

SDA - Pin 2

SCL - Pin 3

A schematic is below.

Post any questions or bugs. Hopefully I won't be needing a bigger display.

Code

# gets the data from the website
import requests


def connect():
    html_code = requests.get("https://www.worldometers.info/coronavirus/").text[:100001]
    html_code_line = html_code.split('\n')
    return html_code_line


class global_data:
    def __init__(self, code):
        self.code = code

    def cases(self):
        cases = self.code[self.code.index('<h1>Coronavirus Cases:</h1>') + 2]
        cases = cases.replace('<span style="color:#aaa">', '')
        cases = cases.replace('</span>', '')
        return cases

    def deaths(self):
        deaths = self.code[self.code.index('<h1>Deaths:</h1>') + 2]
        deaths = deaths.replace('<span>', '')
        deaths = deaths.replace('</span>', '')
        return deaths

    def recoveries(self):
        deaths = self.code[self.code.index('<h1>Recovered:</h1>') + 2]
        recoveries = recoveries.replace('<span>', '')
        recoveries = recoveries.replace('</span>', '')
        return recoveries


def data_return():
    connected = global_data(connect())
    return connected.cases(), connected.deaths(), connected.recoveries()

import backend
import host
import time
import requests

import Adafruit_GPIO.SPI as SPI
import Adafruit_SSD1306

from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont

import subprocess

RST = None
DC = 23
SPI_PORT = 0
SPI_DEVICE = 0

disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST)
disp.begin()
disp.clear()
disp.display()

width = disp.width
height = disp.height
image = Image.new('1', (width, height))
draw = ImageDraw.Draw(image)
draw.rectangle((0,0,width,height), outline=0, fill=0)

padding = -2
top = padding
bottom = height-padding
x = 0

font = ImageFont.load_default()

while True:
    draw.rectangle((0,0,width,height), outline=0, fill=0)

    cases1, deaths1, recoveries1 = backend.global_data.data_return()
    
    cases1 = "Deaths: " + str(cases1)
    deaths1 = "Cases: " + str(deaths1)
    recoveries1 = "Recovered: " + str(recoveries1)

    draw.text((x, top), deaths1,  font=font, fill=255)
    draw.text((x, top+10), cases1, font=font, fill=255)
    draw.text((x, top+20), recoveries1,  font=font, fill=255)

    disp.image(image)
    disp.display()
    time.sleep(.1)
    time.sleep(500)

Credits

GadhaGod

17 projects • 20 followers

Thanks to shaunikm.

Live Coronavirus Stats Display

Things used in this project

Hardware components

Story

Setup

Code

Connections

Schematics

corona_schematic_MBUhBrEIcp.fzz

corona schematic

Code

backend.py

main.py

Credits

GadhaGod

Comments

Embed the widget on your own site

Live Coronavirus Stats Display

Live Coronavirus Stats Display

Things used in this project

Hardware components

Story

Setup

Code

Connections

Schematics

corona_schematic_MBUhBrEIcp.fzz

corona schematic

Code

backend.py

main.py

Credits

GadhaGod

Comments

Related channels and tags