BME280 Environmental Sensor Module

BME280 Environmental Sensor Module

BME280
Environmental Sensor
Temperature
Humidity
Pressure
TRIOE
IoT
Embedded Systems

The BME280 is a highly accurate sensor that measures temperature, humidity, and atmospheric pressure. It is commonly used in weather stations, IoT projects, and environmental monitoring systems.

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Specifications

VCCPower supply (3.3V or 5V, depending on the module)
GNDGround (-)
SDAI2C data line
SCLI2C clock line

Sample Code

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#define BME280_ADDRESS 0x76 // I2C address of the BME280 sensor
Adafruit_BME280 bme; // Create an instance of the BME280 sensor
void setup() {
Serial.begin(9600);
if (!bme.begin(BME280_ADDRESS)) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
}
void loop() {
Serial.print("Temperature: ");
Serial.print(bme.readTemperature());
Serial.println(" °C");
Serial.print("Humidity: ");
Serial.print(bme.readHumidity());
Serial.println(" %");
Serial.print("Pressure: ");
Serial.print(bme.readPressure() / 100.0F);
Serial.println(" hPa");
delay(1000);
}

Crash Course: Using the BME280 Environmental Sensor Module

Objective

Teach learners how to use the BME280 sensor module to measure temperature, humidity, and atmospheric pressure, and integrate its readings with a TRIOE microcontroller.

Materials Required

  • BME280 Sensor Module
  • TRIOE
  • Breadboard and jumper wires
  • USB cable for programming the TRIOE
  • Computer with Arduino IDE installed

Steps

1Understand the BME280 Sensor

  • The BME280 measures: Temperature in degrees Celsius, Humidity as a percentage, Pressure in hPa (hectopascal).
  • Communication Protocols: I2C (2-wire communication with SDA and SCL), SPI (optional for advanced users).

2Set Up the Circuit

  • Connect the VCC pin to the TRIOE's 5V.
  • Connect the GND pin to the TRIOE's GND.
  • Connect the SDA pin to the TRIOE's A4 pin.
  • Connect the SCL pin to the TRIOE's A5 pin.

3Install the BME280 Library

  • Open the Arduino IDE.
  • Go to Sketch > Include Library > Manage Libraries.
  • Search for 'Adafruit BME280' and install the library.
  • Also, install the 'Adafruit Unified Sensor' library, if prompted.

Video Tutorial: Using the BME280 Environmental Sensor Module

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Common Applications

Application 1

Description of application 1.

Application 2

Description of application 2.

Application 3

Description of application 3.