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SmartElex MPL3115A2 Altitude Pressure Sensor Breakout Board

SmartElex MPL3115A2 Altitude Pressure Sensor Breakout Board

₹606.00Price
🔹 Overview
The SmartElex MPL3115A2 Breakout Board is a high-precision barometric pressure and altitude sensor module based on the MPL3115A2 MEMS sensor.
  • Measures:
    • Barometric pressure
    • Altitude
    • Temperature
  • Provides fully calibrated digital output via I2C
  • Designed for precision environmental and altitude sensing
👉 Commonly used in drones, weather stations, navigation, and IoT systems
🔹 Working Principle
  • Uses MEMS pressure sensing technology
  • Internal process:
    • Pressure → mechanical deformation
    • Converted to electrical signal
    • Processed by 24-bit ADC
  • On-chip compensation:
    • Temperature compensation
    • Pressure linearization
👉 Outputs direct altitude or pressure data (no external calculations needed)
🔹 Measurement Characteristics
🌬️ Pressure
  • Resolution: 20-bit
  • High precision: fractions of Pascal
  • Typical accuracy: ±0.05 kPa
🏔️ Altitude
  • Resolution: up to 30 cm (0.3 m)
  • Accuracy: ±0.3 m (typical)
🌡️ Temperature
  • Resolution: 12-bit
  • Used for internal compensation + ambient measurement
🔹 Electrical Characteristics
  • Operating Voltage: 1.95V – 3.6V
  • Digital Interface Voltage: 1.6V – 3.6V
  • Low power consumption → suitable for embedded systems
👉 3.3V device (level shifting needed for 5V systems)
🔹 Communication Interface
  • Protocol: I2C
  • Speed: up to 400 kHz
👉 Digital output simplifies microcontroller integration
🔹 Internal Architecture
  • MEMS pressure sensor
  • 24-bit ADC
  • Temperature sensor
  • Digital signal processor
  • Compensation & calibration memory
🔹 Functional Features
📊 Multi-Measurement Modes
  • Pressure mode
  • Altimeter mode
  • Temperature output
⚙️ Advanced Features
  • Programmable event detection
  • Autonomous data acquisition
  • 32-sample FIFO buffer
⏱️ Data Logging
  • Sampling interval:
    • 1 second to 9 hours
  • Can log data for up to ~12 days using FIFO
🔹 Breakout Board Features
  • 0.1″ (2.54 mm) header pins for breadboard use
  • Pre-mounted supporting passive components
  • Compact and easy-to-integrate design
🔹 Performance Characteristics
  • High sensitivity to small pressure changes
  • Detects altitude changes as small as 30 cm
  • Fully calibrated digital output
  • Stable long-term performance
🔹 Functional Behavior
  • Can operate in:
    • Altimeter mode (direct altitude output)
    • Barometer mode (pressure output)
  • Internal processing:
    • Converts pressure → altitude automatically
👉 Reduces computation load on MCU
🔹 Key Technical Features
  • 3-in-1 sensing (Pressure + Altitude + Temperature)
  • 24-bit high-resolution ADC
  • 20-bit pressure & altitude output
  • I2C digital interface
  • FIFO data logging
  • Autonomous measurement capability
  • High accuracy (30 cm altitude resolution)
🔹 Advantages
  • Direct altitude output (no conversion needed)
  • High precision and resolution
  • Low power consumption
  • Easy I2C integration
  • Suitable for embedded and IoT systems
🔹 Limitations
  • Limited to ~12,000 m altitude range (approx.)
  • Sensitive to:
    • Temperature changes
    • Air pressure fluctuations
  • Requires calibration for best accuracy in real-world conditions
🔹 Applications
  • Drones and UAV altitude control
  • Weather monitoring systems
  • Indoor navigation
  • GPS enhancement systems
  • Altimeters and wearable devices
  • Environmental monitoring
🔹 Technical Summary
The MPL3115A2 breakout is a precision digital barometric sensor that:
  • Converts pressure → altitude directly
  • Provides high-resolution environmental data
  • Integrates ADC + calibration + processing in one chip
👉 It is best suited for:
  • Altitude measurement systems
  • Weather and environmental monitoring
  • Navigation and IoT applications
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