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SmartElex LIS3DH Triple Axis Accelerometer Breakout

SmartElex LIS3DH Triple Axis Accelerometer Breakout

₹106.00Price
🔍 Overview
The module is based on the LIS3DH 3-axis accelerometer IC, a low-power MEMS digital accelerometer.
  • Measures acceleration along:
    • X-axis
    • Y-axis
    • Z-axis
  • Detects:
    • Motion
    • Tilt
    • Orientation
    • Vibration
👉 It is a 3-axis motion sensing device widely used in embedded systems.
⚙️ Working Principle
🧠 MEMS Capacitive Sensing
  • Inside the sensor is a microscopic mechanical structure (mass + springs)
  • When acceleration occurs:
    • The mass shifts slightly
    • This changes capacitance between electrodes
🔄 Signal Conversion
  • Capacitance change → converted into electrical signal
  • Internal ADC (Analog-to-Digital Converter) converts it to digital data
👉 Output represents acceleration in g (gravity units).
📊 Measurement Characteristics
Acceleration Range (Selectable)
  • ±2g
  • ±4g
  • ±8g
  • ±16g
👉 Configurable depending on application.
Resolution
  • Up to 16-bit (high-resolution mode)
  • Typical sensitivity:
    • ~1 mg per LSB (varies with range)
Output Data
  • 3-axis digital values:
    • X, Y, Z acceleration
⚡ Electrical Characteristics
  • Supply voltage: 1.71V to 3.6V
  • Very low power consumption:
    • As low as ~2 µA (low-power mode)
👉 Suitable for battery-powered and wearable devices.
🔗 Communication Interface
  • I²C interface
  • SPI interface (3-wire / 4-wire)
👉 Flexible integration with microcontrollers.
🧠 Internal Features
✔ Built-in FIFO Buffer
  • Stores multiple samples
  • Reduces processor load
✔ Interrupt System
  • Generates interrupts for:
    • Motion detection
    • Free-fall detection
    • Click/tap detection
✔ Orientation Detection
  • Detects:
    • Tilt
    • Position change
✔ High-Pass / Low-Pass Filters
  • Removes noise
  • Improves signal quality
✔ Low Power Modes
  • Multiple operating modes:
    • Power-down
    • Low-power
    • Normal
    • High-resolution
🔄 Operating Behavior
✔ Acceleration Measurement
  • Measures:
    • Static acceleration (gravity → tilt)
    • Dynamic acceleration (movement, vibration)
✔ Tilt Detection
  • Uses gravity vector (~1g)
  • Determines orientation relative to Earth
✔ Motion Detection
  • Detects sudden or continuous movement
🌡️ Environmental Characteristics
  • Operating temperature: −40°C to +85°C
  • Stable under varying conditions
⚠️ Limitations
  • Cannot measure:
    • Absolute position
  • Drift may occur over time (especially for integration-based motion tracking)
  • Sensitive to:
    • Noise
    • Mechanical vibration
🔌 Typical Pin Configuration
  • VCC → Power supply
  • GND → Ground
  • SDA / MOSI → Data
  • SCL / SCK → Clock
  • CS → Chip select (SPI mode)
  • INT1 / INT2 → Interrupt outputs
🧩 Functional Role
The module acts as a:
  • Motion sensor
  • Tilt/orientation detector
  • Vibration sensor
  • Inertial measurement component
🏁 Summary
The SmartElex LIS3DH Accelerometer Breakout is a compact, low-power motion sensing module that:
  • Measures 3-axis acceleration (X, Y, Z)
  • Uses MEMS capacitive sensing technology
  • Provides digital output via I²C/SPI
  • Supports multiple ranges (±2g to ±16g)
  • Includes FIFO, interrupts, and filtering features
  • Is optimized for motion detection and orientation sensing applications
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