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SparkFun MPL3115A2 Altitude/Pressure Sensor Breakout Board - I2C Interface

₹1,449.00 (Inclusive of all taxes)
Out of Stock

The SparkFun MPL3115A2 breakout is a high-precision MEMS barometric pressure and altitude sensor module with a digital I2C interface, designed for easy integration with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V microcontroller platforms.

Features

  • High-resolution 24-bit ADC for precise pressure and altitude measurement.
  • I2C digital interface for simple connection to microcontrollers and SBCs.
  • Wide operating voltage range from 1.95V to 3.6V, compatible with 3.3V logic.
  • Fully compensated and calibrated sensor with programmable data acquisition.
  • Compact breakout board with all necessary passive components pre-installed.

Out of stock

Description

The MPL3115A2 is a sophisticated MEMS-based pressure sensor that delivers highly accurate altitude data, with a resolution down to fractions of a meter when oversampling is enabled. Its pressure output is resolved to fractions of a Pascal, making it suitable for applications requiring fine atmospheric changes. The sensor’s outputs are digitized by an internal high-resolution 24-bit ADC and communicated via a standard I2C interface.

This breakout board simplifies prototyping by providing the sensor in a ready-to-use format, with all required passive components populated and pins broken out to a standard 0.1-inch header. The device operates across a wide temperature range from -40°C to +85°C, ensuring reliability in various environmental conditions for weather stations, navigation aids, and altitude tracking systems.

Key Features

  • High-accuracy MEMS pressure sensor with 24-bit ADC for precise data.
  • Digital I2C output simplifies integration with most microcontrollers.
  • Wide supply voltage range (1.95V to 3.6V) supports 3.3V system designs.
  • Fully internally compensated and calibrated for stable performance.
  • Programmable autonomous data acquisition modes for power efficiency.
  • Provides both pressure (0.05–0.11 MPa) and 12-bit temperature data.
  • Compact and lightweight PCB footprint for space-constrained projects.
  • Robust operating temperature range from -40°C to +85°C.

Applications

  • High-accuracy altimetry for drones, UAVs, and model rocketry.
  • Weather station equipment for barometric pressure tracking and forecasting.
  • GPS enhancement and dead reckoning for navigation and emergency services.
  • Altitude-based activity tracking in wearable and personal electronics.
  • Environmental monitoring and data logging systems.

Technical Specifications

Manufacturer Part NumberMPL3115A2
Breakout Board SKUSEN-11084
Sensor TypeMEMS Pressure/Altitude
Pressure Range50 kPa to 110 kPa (0.05 to 0.11 MPa)
Altitude Resolution< 0.3 meter (with oversampling)
Output InterfaceI2C (2-wire serial)
Supply Voltage (VDD)1.95 V to 3.6 V
Digital Interface Voltage (VDDIO)1.6 V to 3.6 V
Max I2C Clock Frequency4 MHz
Operating Temperature-40°C to +85°C
ADC Resolution24-bit (Pressure/Altitude), 12-bit (Temperature)
Board Dimensions (L x W)20 mm x 10 mm
Board Weight2 grams

Frequently Asked Questions

What is the operating voltage range for the MPL3115A2 sensor breakout?

The sensor core (VDD) operates from 1.95V to 3.6V. The digital I2C interface (VDDIO) can be powered from 1.6V to 3.6V, making it directly compatible with 3.3V microcontroller logic levels. Do not apply voltages above 3.6V to either supply pin.

How do I connect and communicate with this sensor using a microcontroller?

The breakout uses a standard I2C (2-wire) interface. Connect the board's VCC to 3.3V, GND to ground, SDA to your microcontroller's I2C data line, and SCL to the I2C clock line. You can then use existing libraries for Arduino, Raspberry Pi, or ESP32 to read pressure, altitude, and temperature data over I2C.

What is the accuracy and resolution of the altitude measurement?

With oversampling enabled, the MPL3115A2 can resolve altitude changes to within 0.3 meters (30 cm). The pressure data is output by a 24-bit ADC, providing resolution in fractions of a Pascal, which translates to high precision in altitude calculation.

Does this sensor require any external components or calibration?

No, the SparkFun breakout board includes all necessary passive components (pull-up resistors, decoupling capacitors). The MPL3115A2 sensor is fully factory compensated and calibrated, providing accurate data out of the box without user calibration.

Can this sensor be used for weather forecasting applications?

Yes, its high-resolution pressure measurement (50-110 kPa range) and stable performance across a -40°C to +85°C temperature range make it suitable for barometric pressure tracking in weather stations, aiding in short-term weather prediction and environmental monitoring.

Package Includes

  • 1 x SparkFun Altitude/Pressure Sensor Breakout Board (MPL3115A2)

Additional Information

Weight 0.002 kg
Dimensions 2 × 1 cm