SKU: 99318957130

GY-291 ADXL345 3-Axis Accelerometer

Sale price$47.52 Regular price$52.80
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Description

GY-291 ADXL345 3-Axis AccelerometerGY 291 ADXL345 3 Axis Accelerometer he GY 291 module contains an ADXL345 accelerometer IC. This small, thin, ultralow power, 3 axis accelerometer has a high resolution (13 bit) measurement with adjustable range 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. This module measures the static acceleration of gravity in tilt sensing applications, as well

GY-291 ADXL345 3-Axis  Accelerometer

he GY-291 module contains an ADXL345 accelerometer IC. This small, thin, ultralow power, 3-axis accelerometer has a high resolution (13-bit) measurement with adjustable range 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.

This module measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. With high resolution (4 mg/LSB) output, it enables measurement of inclination changes less than 1.0°. Several special sensing functions are provided by the IC. Activity and inactivity sensing detect the presence or lack of motion by comparing the acceleration on any axis with user-set thresholds. Tap sensing detects single and double taps in any direction. Freefall sensing detects if the device is falling. These functions can be mapped individually to either of two interrupt output pins. An integrated, patent pending memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption. Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.


Specification:

Ultralow power IC: as low as 23 µA in measurement mode and 0.1 µA in standby mode at VS = 2.5 V (typical)
Power consumption scales automatically with bandwidth
User-selectable resolution
Fixed 10-bit resolution
Full resolution, where resolution increases with g range, up to 13-bit resolution at ±16 g (maintaining 4 mg/LSB scale factor in all g ranges)
Patent pending, embedded memory management system with FIFO technology minimizes host processor load
Single tap/double tap detection
Activity/inactivity monitoring
Free-fall detection

  • Module supply voltage range: 4.0 V to 6 V
  • I/O voltage range: 1.7 V to 3.6V
  • SPI (3- and 4-wire) and I2C digital interfaces
  • Flexible interrupt modes mappable to either interrupt pin
  • Measurement ranges selectable via serial command
  • Bandwidth selectable via serial command
  • Wide temperature range (−40°C to +85°C)
  • 10,000 g shock survival
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 99318957130

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This item arrived well packaged, intact with timely delivery. I am satisfied with the product
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Reviewed in the United States on December 5, 2022
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G Jain
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works
i feel like the hole isn’t as small as before so less pressure now
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Kman
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Sydney
Boise, US
★★★★★ 5
Great Long-Lasting Replacement Heads for BURST Toothbrush
Color: Rose Gold, Color: Rose Gold
I really like these replacement toothbrush heads for my BURST electric toothbrush. They seem to last a very long time compared to many other toothbrush heads I have tried. The bristles hold up really well and do not get worn down or frayed quickly, even with regular use. While I still try to replace my toothbrush heads routinely for hygiene purposes, I honestly feel like these could easily last for several months if needed. The replacement heads attach perfectly to the toothbrush and feel very secure once connected. I also appreciated that they offer them in pink because it matches my toothbrush perfectly and adds a fun touch. The price also feels pretty reasonable for a three-pack considering the quality and durability of the heads themselves. My only small complaint is that they are made of plastic, which I personally do not love from an environmental standpoint. I also am still undecided about the black bristles because it can make it harder to tell if the toothbrush is fully clean after use. Other than that, the product arrived exactly as described and pictured, and overall I think these are excellent replacement heads for anyone using a BURST toothbrush.
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Reviewed in the United States on May 24, 2026

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