Electronics Prerequisites
- NTP (You can refer this: Internet Clock)
Components
- ESP32 Board
- OLED display
Schematic
Code
#include <Wire.h> // Only needed for Arduino 1.6.5 and earlier
#include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`
#include <WiFi.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <HTTPClient.h>
#include <Adafruit_GFX.h> // https://github.com/adafruit/Adafruit-GFX-Library
#include "Adafruit_LEDBackpack.h" // https://github.com/adafruit/Adafruit_LED_Backpack
#include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson
#include "InstagramStats.h" // https://github.com/witnessmenow/arduino-instagram-stats
#include "JsonStreamingParser.h" // https://github.com/squix78/json-streaming-parser
#include <WiFiClientSecure.h>
#define NTP_OFFSET +2 * 60 * 60 // segundos
#define NTP_INTERVAL 60 * 1000 // milissegundos
#define NTP_ADDRESS "0.pool.ntp.org" // Url NTP
#define SDA_PIN 5 // GPIO5 -> SDA
#define SCL_PIN 4 // GPIO4 -> SCL
#define SSD_ADDRESS 0x3c // i2c
char string[25];
const char* ssid = "Your-WIFI-SSID";
const char* password = "Your-WIFI-Password";
String formattedTime;
String ipStr;
String text;
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, NTP_ADDRESS, NTP_OFFSET, NTP_INTERVAL);
SSD1306 display(SSD_ADDRESS, SDA_PIN, SCL_PIN);
WiFiClientSecure secureClient;
WiFiClient client;
InstagramStats instaStats(secureClient);
String userName = "Your-INSTAGRAM-username";
String stats;
unsigned long api_delay = 1 * 60000; //time between api requests (1mins)
unsigned long api_due_time;
void setup()
{
Serial.begin(115200);
Serial.println("");
Serial.println("ESP32 Instagram Stats");
Serial.println("");
display.init();
// display.flipScreenVertically();
display.setTextAlignment(TEXT_ALIGN_LEFT);
display.setFont(ArialMT_Plain_10);
connectWiFi();
timeClient.begin();
InstagramUserStats response = instaStats.getUserStats(userName);
text = (String) response.followedByCount;
}
void loop()
{
timeClient.update();
formattedTime = timeClient.getFormattedTime();
Serial.print("TIME: ");
Serial.println(formattedTime);
if(timeClient.getMinutes() == 00) //updates every hour.
{
Serial.print("The number of Instagram followers of user " + userName + " is: ");
InstagramUserStats response = instaStats.getUserStats(userName);
Serial.println(response.followedByCount);
text = (String) response.followedByCount;
}
display.clear();
display.setFont(ArialMT_Plain_24);
display.drawString(17, 0, formattedTime);
display.setFont(ArialMT_Plain_10);
display.drawString(0, 25, "Instagram: ");
display.drawString(60, 25, userName);
display.setFont(ArialMT_Plain_24);
display.drawString(40, 35, text);
display.display();
delay(1000);
}
void connectWiFi(void)
{
int i;
Serial.println();
Serial.print("Connecting to: ");
Serial.println(ssid);
display.drawString(2, 10, "Connected to: ");
display.drawString(1, 25, String(ssid));
display.display();
WiFi.begin(ssid, password);
while ((WiFi.status() != WL_CONNECTED) && i < 100)
{
i ++;
delay(500);
Serial.print(".");
display.drawString((3 + i * 2), 35, "." );
display.display();
}
if ( WiFi.status() == WL_CONNECTED)
{
IPAddress ip = WiFi.localIP();
ipStr = String(ip[0]) + '.' + String(ip[1]) + '.' + String(ip[2]) + '.' + String(ip[3]);
display.clear();
display.setFont(ArialMT_Plain_16);
display.drawString(0, 0, "WiFi Connected!");
display.drawString(0, 25, ipStr);
Serial.println("");
Serial.println("WiFi Connedcted.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
Serial.print("Subnet Mask: ");
Serial.println(WiFi.subnetMask());
Serial.print("Gateway: ");
Serial.println(WiFi.gatewayIP());
display.display();
}
else
{
ipStr = "NOT CONNECTED";
display.clear();
display.setFont(ArialMT_Plain_16);
display.drawString(0, 0, "WiFi not connected.");
display.drawString(0, 25, ipStr);
Serial.println("");
Serial.println("WiFi not connected.");
display.display();
}
delay(1000);
}
Follow up Problem Statement
- Try displaying twitter tweets on OLED display or the current song you are listening to in spotify