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Make an IoT Based Weather Station using BME280 Barometric Pressure Sensor and NodeMCU ESP8266-12e Wifi Board - KT564

Make an IoT Based Weather Station using BME280 Barometric Pressure Sensor and NodeMCU ESP8266-12e Wifi Board - KT564

SKU:KT564

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INTRODUCTION

Don't let the Smartphone weather apps or commercial weather stations (that feed you with data from stations based miles away) run your outdoor plans with this IOT project, you can be your weatherman.

In this project, we will learn how to make a mini weather station using ESP8266 & BME280 Barometric pressure sensor that can give real-time information on atmospheric pressure, temperature & humidity. Using BME280, we can even measure the altitude above sea level.

This project uses ESP8266 Nodemcu as the control device that easily connects to the existing wi-fi network & creates a web server. When any connected device accesses this web server, ESP8266 reads in temperature & altitude from BME280 & sends it to the web browser of that device with a nice interface.

HARDWARE REQUIRED

SOFTWARE REQUIRED

Arduino IDE 1.8.10 (programmable platform for Arduino)

Click here to download the software

arduino uno

SPECIFICATIONS

NodeMCU ESP8266 CP2102 Module:

  • ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module
  • Built-in Micro-USB, with flash and reset switches, easy to program
  • Full I/O port and Wireless 802.11 supported, direct download no need to reset
  • Arduino compatible works great with the latest Arduino IDE/Mongoose IoT/Micro python
CP2102

BME280 Barometric Pressure Sensor:

  • Model: GY-BMP280-3.3
  • Chip: BMP280
  • Power Supply: 3V/3.3V DC
  • Peak Current: 1.12mA
  • Air Pressure Range: 300-1100hPa (equivalent to +9000…-500m above sea level)
  • Temperature Range: -40 … +85 °C
  • Digital Interfaces: I²C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
  • Current Consumption of Sensor BMP280: 2.7µA @ 1 Hz sampling rate

Pin No.

Pin Name

Pin Description

1

VCC

The power source of 3.3vdc

2

GND

Ground

3

SCL

Serial Clock

4

SDA

Serial Data

BME280

LIBRARY REQUIRED

After downloading these libraries

To install the libraries - Go to sketch -> Include library -> add .zip library

CIRCUIT CONNECTION

  • Connect the BMP280 Module's “Vcc” pin to the Node MCU pin 3.3v.
  • Connect the BMP280 Module's “Gnd” pin to the Node MCU pin GND.
  • Connect the BMP280 Module's “SCL” pin to the Node MCU pin D1.
  • Connect the BMP280 Module's “SDA” pin to the Node MCU pin D2.
circuit connection

CODE

Click to open in Drive

WORKING AND OUTPUT

Welcome to the Node MCU-Based project.

  • First, upload the code. Enter your “SSID and password”.
  • After uploading the code, open the serial monitor you will get the Server IP.
  • Copy the IP and paste it into the browser.
  • After uploading the code, open the serial monitor at a baud rate of 115200.
  • If everything is ok, it will output the dynamic IP address obtained from your router and show the HTTP server started message.
  • Next, load up a browser and point it to the IP address shown on the serial monitor. The ESP8266 should serve up a web page showing temperature, humidity, pressure, and altitude from BME280
working output

DOCUMENT

KT564 - Click to open👈