esp8266 เชื่อมต่อ blynk ไม่ได้รวมทั้ง Wifi hotspot ด้วย รบกวนดู Code ให้หน่อยครับ
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Blynk.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
char auth[] = "gW8-AQt_i7v5hBoOg7K22TG1etTwVw6n"; // You should get Auth Token in the Blynk App.
char ssid[] = "true_home2G_39X";
char pass[] = "GQFn58";
#define inSensor 14 //D5
#define outSensor 12 //D6
int inStatus;
int outStatus;
int countin = 0;
int countout = 0;
int in;
int out;
int now;
#define relay 0 //D3
WidgetLED light(V0);
BLYNK_CONNECTED() {
Blynk.syncAll();
}
void setup()
{
Serial.begin(9600);
Blynk.begin(auth, ssid, pass,IPAddress(192,168,1,100), 8080);
delay(1000); // wait a second
display.begin(SSD1306_SWITCHCAPVCC, 0x3C); //initialize with the I2C addr 0x3C (128x64)
delay(2000);
pinMode(inSensor, INPUT);
pinMode(outSensor, INPUT);
pinMode(relay, OUTPUT);
digitalWrite(relay, HIGH);
Serial.println("Visitor Counter Demo");
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(20, 20);
display.print("Visitor");
display.setCursor(20, 40);
display.print("Counter");
display.display();
delay(3000);
}
void loop()
{
Blynk.run(); // Initiates Blynk
inStatus = digitalRead(inSensor);
outStatus = digitalRead(outSensor);
if (inStatus == 0)
{
in = countin++;
}
if (outStatus == 0)
{
out = countout++;
}
now = in - out;
if (now <= 0)
{
digitalWrite(relay, HIGH);
light.off();
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 15);
display.print("No Visitor");
display.setCursor(5, 40);
display.print("Light Off");
display.display();
Serial.println("No Visitors! Light Off");
delay(500);
}
else
{
digitalWrite(relay, LOW);
light.on();
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(1);
display.setCursor(15, 0);
display.print("Current Visitor");
display.setTextSize(2);
display.setCursor(50, 15);
display.print(now);
display.setTextSize(1);
display.setCursor(0, 40);
display.print("IN: ");
display.print(in);
display.setTextSize(1);
display.setCursor(70, 40);
display.print("OUT: ");
display.print(out);
display.display();
Serial.print("Current Visitor: ");
Serial.println(now);
Serial.print("IN: ");
Serial.println(in);
Serial.print("OUT: ");
Serial.println(out);
delay(500);
}
Blynk.virtualWrite(V1, in); // Visitors In
Blynk.virtualWrite(V2, out); // Visitors Out
Blynk.virtualWrite(V3, now); // Current Visitors
delay(1000);
}
