SKU: 99318957130

GY-291 ADXL345 3-Axis Accelerometer

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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
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  • 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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4.0 ★★★★★
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Pagan
Fort Morgan, US
★★★★★ 5
Great toy!!!
Style: Original
My dog went mental over this ball!!! She will let me roll it through the backyard or in the house and she will go nuts for it but the great part, she will play by herself with this ball. She will roll it and jump on it and just have a blast. Since this is not a normal chew toy, my dog's big, she only gets it when I'm with her. It kind of makes it our special thing when I pull it out. We play every day with it and her enthusiasm has never lessened. She can be in another room when I take it out of the cabinet and the second she hears it, she will run into walls in her rush to get to me so we can play! It really is better than just throwing a ball back and forth. She's completely engaged the entire time it's out. I highly recommend it but just know it's not a normal toy that you can just throw to your dog and walk away. It is an amazing toy to help you bond with your pet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
R
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Russell Jones
Fort Morgan, US
★★★★★ 5
Great for dogs that need to stay busy
Style: Original
My dog absolutely loves this ball. It is a little noisy so we take it out in the yard and let her play with it there. I highly recommend it if you have a dog that get bored easily. This will surely keep them busy.
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Reviewed in the United States on April 14, 2026
A
Verified Purchase
Alyssa Fahey
Port Orchard, US
★★★★★ 5
Fun for the Dogs and Kids
Style: Original
My dog seems to love this ball. Super sturdy for an aggressive chewer. Easy to play with. Makes the tube sound when it rolls which keeps the dogs attention well. Super fun. It’s made out of hard plastic so it’s not soft at all. Can take this anywhere.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
csboyd
Bozeman, US
★★★★★ 5
A must have for active dogs
Size: Max Size, Size: Max Size
I normally do not write reviews unless a product is really good or really bad. I have a dog that thinks chasing balls is the only thing in life and unfortunately she has a mom that has anchor pins in both shoulders. We've been using this ball launcher for little over a year. It goes through about 32 dirty balls, 3 times a day and has held up amazingly. It is even full of dirt and still keeps on working, it looks like R2D2 went thru a battle. 😆 I recently bought a second one as a back up because I can't believe this poor thing hasn't given up yet. I rotate the balls because my dog brings them back wet and muddy, then they won't launch as far, so I knock some dirt off of a dry one and launch it. I would highly recommend this for active dogs.
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Reviewed in the United States on May 25, 2026
T
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Terry
Massapequa, US
★★★★★ 5
Damaged...
Size: Max Size
Very well made product. But it does not work. I am so bummed. Would like to return and get another one shipped out to me. It is a Xmas gift for our dog. Thank you...
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Reviewed in the United States on December 16, 2025

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