Introduction: ESP32 COVID19 STATUS VIEWER
This project just get status of COCID19 in json format and display it into the OLED.
Step 1: Grab Things
1. Esp32 Development Module
2. 128x32 OLED Display
SOFTWARE
1. Arduino IDE (Install esp32 boards using board manager)
2. OLED Display Library
3. Arduinojson Library
Step 2: Coding
1. First install esp32 on Arduino IDE.
In your Arduino IDE, go to File> Preferences.
Enter https://dl.espressif.com/dl/package_esp32_index.j... into the “Additional Board Manager URLs” field as shown in the figure below. Then, click the “OK” button
Open the Boards Manager. Go to Tools > Board > Boards Manager…
Search for ESP32 and press install button for the “ESP32 by Espressif Systems“ Click install.
2 Installing Libraries
Goto Sketch>Include Library > Manage Libraries.
Type SSD1306 and instal Adafruit SSD1306
Type Arduinojson and install ArduinoJson by Benoit Blanchon
3. After installing required libraries copy and paste code (or clone) from below link :
https://github.com/Anirudhvl/ESP32-COVID19-Status-...
4. Upload to the esp32.
5. If you want to change the country goto :
https://github.com/novelcovid/api
and see their documentation.
6. If you want to change the country or other data, first get the response json and paste it to
https://arduinojson.org/v6/assistant/
Then calculate the dynamic size. Easily just copy the entire code from
Parsing program and paste into the parseJson() function on the sketch.
Step 3: Setting Up Hardware
OLED Pin Connections
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OLED - ESP32
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1. GND - GND
2. +3.3v - 3v3
3. SDA - Pin 21
4. SCL - Pin 22
Step 4: Theory
This project sends a GET request to
https://corona.lmao.ninja/countries/india
and pass the response to Deserialize function to split the data. Deserialize is method from Arduinojson.
