The MPL3115A2 I2C Barometric Pressure & Altitude Sensor Module is a cost-effective, precision sensor developed by Freescale for applications requiring accurate altitude and barometric data. It offers an impressive 1.5 Pa resolution, corresponding to an altitude precision of 0.3 meters, making it ideal for drone navigation, weather tracking, and IoT environmental systems. Unlike traditional sensors such as BMP180 or BMP280, the MPL3115A2 includes a built-in altimeter engine, removing the need for software-based calibration. It operates over I2C communication and includes two programmable interrupt pins for low-power, event-based operation. Integrated with a temperature sensor (±1 °C typical accuracy) and a 32-sample FIFO buffer, it ensures smooth data acquisition while minimizing MCU workload. With a wide operating voltage (2.5 V–5 V) and built-in logic level shifting, the module interfaces easily with 3.3 V and 5 V systems such as Arduino, Raspberry Pi, ESP8266, and ESP32. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
High Precision: 1.5 Pa pressure resolution enables altitude accuracy up to 0.3 m.
Integrated Altimeter Engine: Direct altitude data without calibration.
Ultra-Low Power: Supports interrupt-based sensing for battery-driven systems.
Temperature Measurement: Built-in temperature sensor with ±1 °C accuracy.
I2C Interface: Simple connection to microcontrollers and SBCs.
Voltage Compatibility: Works with 3 V–5.5 V systems via built-in regulator.
Programmable Interrupts: Two pins allow event-driven alerts and power saving.
FIFO Buffer: 32-sample data storage reduces MCU processing time.
Wide Pressure Range: Measures 50 kPa – 110 kPa (up to 10 km altitude).
Compact & Lightweight: 18 × 19 × 2 mm, ideal for drones and IoT sensors.
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Applications:
Drone and UAV altitude control and stabilization.
Weather stations and environmental monitoring.
GPS and navigation altitude correction.
Smart home and IoT weather nodes.
Portable pressure and temperature loggers.
Educational and experimental electronics projects.
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| General Specifications |
| Model | MPL3115A2 |
| Manufacturer | Freescale Semiconductor / NXP |
| Supply Voltage | 2.5 V – 5 V |
| Logic Voltage (I/O) | 1.62 V – 3.6 V |
| Pressure Range | 50 kPa – 110 kPa ( up to 10 km altitude ) |
| Resolution | 1.5 Pa (≈ 0.3 m altitude accuracy) |
| Temperature Accuracy | ±1 °C (Typ.), ±3 °C (Max) |
| Output Interface | I2C (7-bit address 0x60) |
| Interrupt Pins | 2 Programmable Interrupts |
| FIFO Buffer | 32 Sample Data Buffer |
| Operating Temperature | −40 °C to +85 °C |
| Dimensions | 18 × 19 × 2 mm |
| Weight | 1.2 g |
| Shipment Weight | 0.010 kg |
| Shipment Dimensions | 4 × 3 × 1 cm |
Please allow 5% measuring deviation due to manual measurement.
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Package Includes:
1 x MPL3115A2 I2C Barometric Pressure & Altitude Sensor Module
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