GY BME280 Barometric sensor and Blynk connection - product presentation

In this video, we would like to introduce you to the BME 280 and also explain the use of Blynk. As part of the video, the technical specifications of the products used are presented. In addition, we show a sample circuit to show how the sensor can be used, how the cabling works, and how the integration of Blynk works.

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Here you will find the products used:

Gy-bme280 barometric sensor

ESP32 NODEMCU Module WiFi Development Board

Resistance resistor kit

LED light -emitting diodes range kit

Wiring:

Code:

 /*

    ___ _____        ____       ___                      
   /   /__  /       / __ \___  / (_)   _____  _______  __
  / /| | / / ______/ / / / _ \/ / / | / / _ \/ ___/ / / /
 / ___ |/ /_/_____/ /_/ /  __/ / /| |/ /  __/ /  / /_/ / 
/_/  |_/____/    /_____/\___/_/_/ |___/\___/_/   \__, /  
                                                /____/   
 Product, data sheet and Pinout at:
  https://www.az-delivery.de/

 Project: Send BME280 data to Blynk and control LED via Blynk
 Date: 02/2022

*/

#include <Wire.H>
#include <Adafruit_sensor.H>
#include <Adafruit_bme280.H>
Adafruit_bme280 BME; // i2c

#define Blynk_Print Serial
#define Blynk_Template_ID "Tmplwrohr9-B"
#define Blynk_Device_Name "Room data"
#include <Wifi.H>
#include <Wifi.H>
#include <BlynksimpleESP32.H>
#include "my_crediales.h"

intimately Ledpine = 25;

// LED control via web dashboard.
Blynk_write(V0){
  intimately LED status = param.Asint(); 
  IF(LED status==1) digital(Ledpine, HIGH);
  Else digital(Ledpine, Low);
}

void set up()
{
  Serial.Begin(115200);
  pin mode(Ledpine, OUTPUT);

   // 0x76 i2c address from the sensor
  IF (!BME.Begin(0x76)) {
    Serial.print("No BME280 sensor found!");
    while (1);
  }
  
  Blynk.Begin(auth, SSID, passport); 
}

void loop()
{

 IF(Millis()%3000==0){ 
    float tempo =BME.Reading temperature();
    float pressure =BME.reapressure() / 100.0f;
    float humble =BME.readhumidity();

    Serial.print(tempo +String(" | "));
    Serial.print(pressure +String(" | "));
    Serial.print(humble); 

    Blynk.virtualwrite(V1, tempo); 
    Blynk.virtualwrite(V2, pressure);
    Blynk.virtualwrite(V3, humble); 
 }
 
 Blynk.run();
}

Associated data:

Char Ssid [] = "MySSID";
Char Pass [] = "mypassword";
Char Auth [] = "Fe7p0avzti9izn877T04IVX_SUO2D2A_";

/*
	#define Blynk_auth_Token "Fe7p0avzti9izn877T04IVX_SUO2D2A_"
	#define Blynk_Template_ID "TMPlwrohr9-B"
	#define Blynk_Device_Name "Raumdaten"
*/