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BMP280 Sensor Based IoT Weather Station using ESP8266 & OLED Display

BMP280 Sensor Based IoT Weather Station using ESP8266 & OLED Display

Today in this tutorial, we will learn to interface the BMP280 sensor with the NodeMCU ESP8266 development board, then monitor its parameters like temperature, barometric pressure, and altitude, on the 0.96 inch OLED display and also on the Blynk IoT Platform. This IoT Project provides your NodeMCU ESP8266 board the ability to sense the environment with a BMP280 Barometric Pressure sensor. Overall, we are building ESP8266 & BMP280 based IoT Weather Station.

Here, the NodeMCU ESP8266 reads the temperature, pressure, and altitude values from the BMP280 and prints them on a 0.96″ (SSD1306) OLED display (128×64 pixel) which can be monitored over the Blynk IoT cloud.

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Introduction to BMP280 Sensor

The BMP280 Bosch next-generation widely used sensor that measures temperature, barometric pressure, and altitude. Actually, it is pre-calibrated and is relatively simple to use. Because we don’t require any extra components. So we can start measuring its data using the NodeMCU ESP8266 and BMP280. At the end of this tutorial, you will also learn how to interface BMP280 or any other I2C device with NodeMCU ESP8266 and display data in the OLED display. Additionally, you will also learn to monitor those Weather Station data from anywhere in the world using the Blynk IoT cloud platform.

Interface BMP280 Barometric Pressure sensor & OLED Display with NodeMCU ESP8266

Now, Let’s wire the BMP280 sensor and 0.96″ OLED Display with the NodeMCU development board. The Connections are fairly simple because the OLED and the BMP280 both communicate with the NodeMCU via I2C mode. This means we can connect both modules to the same (I2C) pins on the NodeMCU. Connect the components as shown in the schematics below.

Download full Schematic and Program code from here: BMP280 based IoT Weather Station

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