SparkFun Triple Axis Accelerometer Breakout – ADXL345 三軸加速度計模組

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SparkFun Triple Axis Accelerometer Breakout – ADXL345 三軸加速度計模組

NT$799 NT$680 (未稅)

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SparkFun Triple Axis Accelerometer Breakout – ADXL345 三軸加速度計模組

SparkFun Triple Axis Accelerometer Breakout 增加了2個隔離孔以及一個額外的去耦電容器。ADXL345是一款小型,薄型,低功耗,3軸MEMS加速度計,可在高達+ -16 g的分辨率下進行高分辨率(13位)測量。數字輸出數據的格式為16位二進制補碼,可通過SPI(3線或4線)或I2C數字接口訪問。ADXL345非常適合於測量傾斜感應應用中的靜態靜態加速度以及運動或震動引起的動態加速度。其高分辨率(4 mg / LSB)可以測量小於1.0度的傾斜度變化。

ADXL345 三軸加速度計模組 提供了幾種特殊的感應功能。活動和不活動感測會檢測是否存在運動,以及任何軸上的加速度是否超過用戶設置的水平。點擊感測可檢測單次和兩次點擊。自由落體感應可檢測設備是否在跌落。這些功能可以映射到兩個中斷輸出引腳之一。集成的,正在申請專利的32級先進先出(FIFO)緩衝區可用於存儲數據,以最大程度地減少主機處理器的干預。低功耗模式能夠以​​極低的功耗實現基於閾值感應和主動加速度測量的基於運動的智能電源管理。

ADXL345 三軸加速度計模組 特色

  • 2.0-3.6VDC電源電壓
  • 超低功耗:測量模式下為40uA,待機時為2.5uV時為0.1uA
  • 點擊/雙擊檢測
  • 自由落體檢測
  • SPI和I2C接口

ADXL345 三軸加速度計模組 文件與資料

This new version adds 2 standoff holes as well as an extra decoupling capacitor. The ADXL345 is a small, thin, low power, 3-axis MEMS accelerometer with high resolution (13-bit) measurement at up to +-16 g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.

The ADXL345 is well suited to measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 mg/LSB) enables measurement of inclination changes less than 1.0 degrees;.

Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion and if the acceleration on any axis exceeds a user-set level. Tap sensing detects single and double taps. Free-fall sensing detects if the device is falling. These functions can be mapped to one of two interrupt output pins. An integrated, patent pending 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor intervention. Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.

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