ADXL345 - Triple Axis Linear Accelerometer
Description:
ADXL345 is a compact, low-power, high-performance 3-axis accelerometer designed for measuring acceleration, tilt, motion, vibration, and free fall detection. It can measure both dynamic acceleration (e.g., motion, vibration, impact) and static acceleration (e.g., gravity for tilt sensing).ADXL345 is a compact, low-power, high-performance 3-axis accelerometer designed for measuring acceleration, tilt, motion, vibration, and free fall detection. It can measure both dynamic acceleration (e.g., motion, vibration, impact) and static acceleration (e.g., gravity for tilt sensing).Sensor outputs data in a 13-bit resolution and supports a range of ±2g to ±16g, allowing it to capture both subtle and extreme motions with precision.
Features:
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Triple Axis Detection — Detect acceleration on X, Y, and Z axes.
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Selectable Sensitivity — ±2g, ±4g, ±8g, or ±16g range.
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Built-in FIFO Buffer — For motion data logging.
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Motion/Free-Fall Detection — Useful in anti-theft or drop protection systems.
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Configurable Interrupts — For low power or event-driven applications.
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I²C/SPI Dual Interface — Easy integration with various microcontrollers.
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Low Power Consumption — Ideal for battery-operated devices.
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Onboard Voltage Regulator — Can safely operate with 3.3V or 5V MCU boards.
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Compact Design — Small PCB footprint for embedded and wearable tech.
Diagram:
Specifications:
| Sensor Type | MEMS Accelerometer (3-axis) |
| Measurement Range | ±2g, ±4g, ±8g, ±16g |
| Interface | I²C or SPI |
| Resolution | 10-bit or 13-bit |
| Data Rate | 0.1 Hz to 3200 Hz |
| Supply Voltage | 2.0V – 3.6V |
| Power Consumption | ~23 µA |
| Output Format | Digital |
| Operating Temperature | -40°C to +85°C |
| Module Size | 2.8 cm x 1.5 cm |
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