GY-291 ADXL345 3-Axis  Accelerometer
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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • 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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Frederick Snead
Fort Morgan, US
★★★★★ 5
Like the style
Color: Black-satin, Size: XX-Large
Fits good
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Reviewed in the United States on April 4, 2026
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Humberto S.
Phoenix, US
★★★★★ 5
Buena compra !!
Color: Black-satin, Size: Medium
Me gustó el detalle y la caída del pantalón, lo compraré otra vez en el futuro.
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Reviewed in the United States on September 3, 2025
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Maav
New York, US
★★★★★ 1
Runs EXTREMELY small
Color: Black-satin, Size: 3X-Large
Ordered a 3X but got a XS…i am a 42-44, got the 3X to have tapered to my fit, but upon opening the pants, it seemed they may be more of a 32-34 and the adjustable straps aren’t really adjustable, they are just buckles sewed in place for design. The 3X tag sewn in is a complete lie! Only giving 1 star because they did have the satin tuxedo stripe on the side!
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Reviewed in the United States on November 26, 2025
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Rose
Lexington, US
★★★★★ 1
too long for them to come in it's not worth the headache not true
Color: Black-satin, Size: X-Large
I waited forever and when it finally came it was too small, they run small not true size
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Reviewed in the United States on March 16, 2026
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John V.
Bozeman, US
★★★★★ 2
Too small
Color: Black-satin, Size: X-Large
Nice material but far too small compared to the size that it says.
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Reviewed in the United States on May 11, 2026

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