SKU: SENS-2861
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SparkFun BME280 Atmospheric Sensor Breakout - I2C/SPI Interface

₹3,089.00 (Inclusive of all taxes)
Out of Stock

The SparkFun BME280 Atmospheric Sensor Breakout provides high-precision barometric pressure, humidity, and temperature sensing via I2C or SPI interfaces, designed for seamless integration with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V logic microcontroller platforms.

Features

  • Integrated Bosch BME280 sensor for pressure (30-110 kPa), humidity (0-100% RH), and temperature (-40°C to +85°C) measurement.
  • Dual I2C (5V tolerant) and SPI digital interfaces for flexible system integration.
  • Ultra-low power operation: <1 mA during measurement, <5 µA in idle mode.
  • Factory-calibrated for high accuracy and low-noise performance.
  • Compact PCB footprint (20 x 15 mm) with low-profile design for space-constrained applications.

Out of stock

Description

The SparkFun BME280 Breakout integrates the Bosch BME280 MEMS environmental sensor, which utilizes advanced capacitive sensing for humidity and piezoresistive sensing for pressure. The sensor is factory-calibrated, delivering stable and reliable readings across its full operational range. The breakout board provides easy access to the sensor’s digital interfaces, including a 3.3V SPI bus and a 5V-tolerant I2C bus with onboard pull-up resistors, ensuring compatibility with a wide range of 3.3V and 5V logic systems.

Designed for low-power applications, the BME280 consumes less than 1mA during active measurement and drops to under 5µA in sleep mode, making it ideal for battery-powered and portable devices. The board’s compact dimensions and minimal component count facilitate integration into weather stations, indoor navigation systems, and IoT environmental monitoring nodes.

Key Features

  • High-precision Bosch BME280 MEMS environmental sensor.
  • Simultaneous measurement of barometric pressure, relative humidity, and ambient temperature.
  • Dual digital communication interfaces: SPI (3.3V) and 5V-tolerant I2C with onboard pull-ups.
  • Ultra-low power architecture optimized for battery-operated devices.
  • Factory calibration ensures high accuracy and eliminates the need for user calibration.
  • Compact and low-profile PCB design for minimal spatial footprint.
  • Robust performance across a wide operating temperature range from -40°C to +85°C.
  • High-value build offering professional-grade sensing capabilities for prototyping and production.

Applications

  • Portable weather stations and personal environmental monitors.
  • Indoor/outdoor navigation and altitude tracking for drones and robotics.
  • HVAC system control and indoor air quality monitoring.
  • IoT sensor nodes for smart home automation and climate logging.
  • Wearable devices for health and wellness parameter tracking.

Technical Specifications

Manufacturer Part NumberSEN-13676
Sensor ModelBME280
Supply Voltage3.3 VDC
Communication InterfaceI2C, SPI
Pressure Range30 kPa to 110 kPa
Humidity Range0 to 100% RH
Humidity Accuracy (20-80% RH)±3%
Temperature Range-40°C to +85°C
Active Current< 1 mA
Idle Current< 5 µA
Board Dimensions (L x W)20 mm x 15 mm
Board Height~2 mm
Board Weight3 g

Frequently Asked Questions

What is the operating voltage for the SparkFun BME280 Breakout?

The breakout board is designed for a 3.3V supply. The I2C interface is 5V-tolerant, meaning the SDA and SCL pins can safely connect to 5V microcontroller GPIOs, but the VCC pin must be supplied with 3.3V for proper sensor operation.

How do I choose between I2C and SPI communication?

The board supports both interfaces. For I2C, use the dedicated pins on one side of the board (SDA, SCL). For SPI, use the pins on the opposite side (CSB, SDI, SDO, SCK). The interface is selected by the state of the SDO pin during power-up. Consult the BME280 datasheet for the specific pin configuration protocol.

Is the sensor calibrated, and what is its accuracy?

Yes, the Bosch BME280 is factory-calibrated. The humidity sensor has an accuracy of ±3% within the 20-80% RH range. Pressure and temperature accuracy specifications are detailed in the Bosch datasheet. No user calibration is required for typical applications.

What is the power consumption of this breakout?

The sensor consumes less than 1 mA during a measurement cycle. In sleep mode, the current drops to less than 5 µA. This ultra-low power profile makes it suitable for battery-powered environmental monitoring and IoT applications.

What microcontrollers is this breakout compatible with?

It is directly compatible with any 3.3V microcontroller with I2C or SPI peripherals, such as Arduino (via 3.3V boards), Raspberry Pi, ESP32, and STM32. For 5V Arduino boards (Uno, Mega), use a logic level converter for the SPI lines, while the I2C lines can be connected directly due to their 5V tolerance.

Package Includes

  • 1 x SparkFun BME280 Atmospheric Sensor Breakout Board

Additional Information

Weight 0.003 kg
Dimensions 2 × 1.5 × 0.2 cm