Halo Sobat Arduino, Barusan saya post di video tentang bagaimana cara mengambil data dari website penyedia API untuk sebaran pasien COVID-19 di Indonesia.
/*
Project Name: COVID-19 DASHBOARD
Components Used: ESP32, OLED Display
Author: Vinod Mandavkar
Instagram: https://www.instagram.com/maker.vinod/
Instructables: https://www.instructables.com/member/makervinod/
Youtube: https://www.youtube.com/c/VinodMandavkar
Modified : Sekolah Robot Indonesia
YOutube : http://youtube.com/sekolahrobotindonesia
*/
//Use this if you are using ESP32
//#include <WiFi.h>
//#include <HTTPClient.h>
//Use this if you are using ESP8266
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiUdp.h>
#include <NTPClient.h>
#include "ArduinoJson.h"
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
Adafruit_SSD1306 display(128, 64, &Wire); //Using the Adafruit Library
const char* ssid = "********"; //Di Isi SSID koneksi wifi
const char* password = "sadapsadap"; //Di Isi Password wifi
// Define NTP Client to get time
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org");
//Week Days
String weekDays[7]={"Minggu", "Senin", "Selasa", "Rabu", "Kamis", "Jumat", "Sabtu"};
//Month names
String months[12]={"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
String currentDate;
void setup() {
Serial.begin(115200); //Starting Serial Communication
WiFi.disconnect(true); //Disconecting the WiFi if we are previouly connected.
// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64 | You can change this to 0x3C if your display doesn't work
Serial.println(F("SSD1306 allocation failed"));
for (;;); // Don't proceed, loop forever
}
//Intro Page - Change according to your needs
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(40, 0);
display.println("DATA");
display.setCursor(20, 20);
display.println("SEBARAN");
display.setTextSize(2);
display.setCursor(5, 40);
display.println("INDONESIA"); // display Country name
display.display();
delay(2000);
WiFi.begin(ssid, password); // Connecting to the WiFi
while (WiFi.status() != WL_CONNECTED) { //Wait till we are connected
animate_oled_wifi(); // Animate it on the Screen
}
display.clearDisplay();
display.display(); //update the display
Serial.println("Connected to the WiFi network");
// Initialize a NTPClient to get time
timeClient.begin();
// Set offset time in seconds to adjust for your timezone, for example:
// GMT +1 = 3600
// GMT +8 = 28800
// GMT -1 = -3600
// GMT 0 = 0
timeClient.setTimeOffset(0);
}
//This is what we do repeatedly !!
void loop()
{
JsonObject root;
String ACTIVE_CASES = "", TOTAL_CASES = "", RECOVERED_CASES = "", DEATHS = "", HISTORY = ""; //some data storage strings
if ((WiFi.status() == WL_CONNECTED)) { //Check the current connection status
HTTPClient http;
http.begin("http://covid.vinteq.in/api/get_data/?country=Indonesia"); //Specify the URL - You can change th country name as per your need to get the country specific data
http.addHeader("auth-key", "authnya dimasukkin sini"); //Insert your Auth-key here in quotes (as String)
int httpCode = http.GET(); //Make the request
if (httpCode > 0) { //Check for the returning code
String payload = http.getString();
// Serial.println(payload); //Print the Payload received
DynamicJsonDocument doc(2 * payload.length()); //Flexible size
// Parse JSON object
DeserializationError error = deserializeJson(doc, payload);
if (error)
{
Serial.print(F("deserializeJson() failed: "));
Serial.println(error.c_str());
return;
}
root = doc.as<JsonObject>(); //Mapping the data to Json Object
}
http.end(); //Free the resources
}
// Handle the Data
for (JsonPair kv : root) {
if (String(kv.key().c_str()) == "history")
{
HISTORY = kv.value().as<String>();
}
}
//Removing Brackets
HISTORY = HISTORY.substring(0, HISTORY.length() - 1);
HISTORY = HISTORY.substring(1);
// Serial.println(HISTORY);
//We need the latest data - the first one
String DATA = HISTORY.substring(0, HISTORY.indexOf('}') + 1);
// Serial.println(DATA);
DynamicJsonDocument sub_doc(DATA.length() * 2);
DeserializationError error = deserializeJson(sub_doc, DATA); //Converting the Extracted Nested Data from String to Json
root = sub_doc.as<JsonObject>();
for (JsonPair kv : root)
{
//Finding specific keys and extracting their values in varibales
if (String(kv.key().c_str()) == "active_cases")
{
ACTIVE_CASES = kv.value().as<String>() ;
}
if (String(kv.key().c_str()) == "recovered_cases")
{
RECOVERED_CASES = kv.value().as<String>() ;
}
if (String(kv.key().c_str()) == "total_cases")
{
TOTAL_CASES = kv.value().as<String>() ;
}
if (String(kv.key().c_str()) == "deaths")
{
DEATHS = kv.value().as<String>();
}
}
getdate();
/*
This is the display rountine
What it does:
Shows the above extracted data on the OLED Display
Loops again as we need ot to display the same data for 1 minute before new data is fetched (You can change it according to your need)
dealy of 5 seconds x 4 display values = 20 seconds per loop - Repeating for 3 Times = 60 Seconds ~ 1 Minute
*/
for (byte i = 0; i < 3; i++)
{
display.clearDisplay();
display.setTextSize(2);
display.setCursor(8, 0);
display.println("INDONESIA");
display.setCursor(15, 25);
display.setTextSize(2);
display.println("COVID-19");
display.setCursor(30, 50);
display.setTextSize(1);
display.println(currentDate);
display.display();
delay(5000);
// Serial.println(ACTIVE_CASES);
// display.clearDisplay();
// display.setTextSize(2);
// display.setCursor(0, 0);
// display.println("ACTIVE:");
// display.setCursor(0, 30);
// display.setTextSize(3);
// display.println(ACTIVE_CASES);
// display.display();
// delay(5000);
// Serial.println(RECOVERED_CASES);
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 0);
display.println("SEMBUH:");
display.setCursor(0, 30);
display.setTextSize(3);
display.println(RECOVERED_CASES);
display.display();
delay(5000);
// Serial.println(DEATHS);
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 0);
display.println("MENINGGAL:");
display.setCursor(0, 30);
display.setTextSize(3);
display.println(DEATHS);
display.display();
delay(5000);
// Serial.println(TOTAL_CASES);
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0, 0);
display.println("POSITIF:");
display.setCursor(0, 30);
display.setTextSize(3);
display.println(TOTAL_CASES);
display.display();
delay(5000);
}
}
//WiFi Connection Animation
void animate_oled_wifi()
{
display.clearDisplay();
display.setCursor(0, 20);
display.println("Connecting");
display.println("to WiFi...");
display.setCursor(10, 0);
display.println(" {-} ");
display.display();
delay(500);
display.clearDisplay();
display.setCursor(0, 20);
display.println("Connecting");
display.println("to WiFi...");
display.setCursor(10, 0);
display.println(" { - } ");
display.display();
delay(500);
display.clearDisplay();
display.setCursor(0, 20);
display.println("Connecting");
display.println("to WiFi...");
display.setCursor(10, 0);
display.println(" { - } ");
display.display();
delay(500);
display.clearDisplay();
display.setCursor(0, 20);
display.println("Connecting");
display.println("to WiFi...");
display.setCursor(10, 0);
display.println("{ - }");
display.display();
delay(500);
}
void getdate()
{
timeClient.update();
unsigned long epochTime = timeClient.getEpochTime();
Serial.print("Epoch Time: ");
Serial.println(epochTime);
String formattedTime = timeClient.getFormattedTime();
Serial.print("Formatted Time: ");
Serial.println(formattedTime);
int currentHour = timeClient.getHours();
Serial.print("Hour: ");
Serial.println(currentHour);
int currentMinute = timeClient.getMinutes();
Serial.print("Minutes: ");
Serial.println(currentMinute);
int currentSecond = timeClient.getSeconds();
Serial.print("Seconds: ");
Serial.println(currentSecond);
String weekDay = weekDays[timeClient.getDay()];
Serial.print("Week Day: ");
Serial.println(weekDay);
//Get a time structure
struct tm *ptm = gmtime ((time_t *)&epochTime);
int monthDay = ptm->tm_mday;
Serial.print("Month day: ");
Serial.println(monthDay);
int currentMonth = ptm->tm_mon+1;
Serial.print("Month: ");
Serial.println(currentMonth);
String currentMonthName = months[currentMonth-1];
Serial.print("Month name: ");
Serial.println(currentMonthName);
int currentYear = ptm->tm_year+1900;
Serial.print("Year: ");
Serial.println(currentYear);
//Print complete date:
currentDate = String(monthDay) + "/" + String(currentMonth) + "/" + String(currentYear);
Serial.print("Current date: ");
Serial.println(currentDate);
Serial.println("");
}
