# Source: https://learn.adafruit.com/adafruit-analog-accelerometer-breakouts.md

# Adafruit Analog Accelerometer Breakouts

## Overview

The ADXL335 , ADXL326 and ADXL377 are low-power, 3-axis MEMS accelerometer modules with ratiometric analog voltage outputs. The Adafruit Breakout boards for these modules feature on-board 3.3v voltage regulation which makes them simple to interface with 5v microcontrollers such as the Arduino.

 **The ADXL335** can measure at least +/- 3G in the X, Y and Z axis. &nbsp;It is perfect for high-resolution&nbsp;static acceleration measurements such as tilt-sensing,&nbsp;as well as for moderate dynamic accelerations from motion, shock or vibration.![sensors_ADXL335_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/002/469/medium640/sensors_ADXL335_LRG.jpg?1396783433)

 **The ADXL326** can measure at least +/- 16G(!) in the X, Y and Z axis. It is ideal for measuring more dynamic accelerations from high-performance land and air vehicles as well as for shock and impact measurements.![sensors_ADXL326_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/002/470/medium640/sensors_ADXL326_LRG.jpg?1396783443)

 **The ADXL377** can measure at least +/- 200G(!) in the X, Y and Z axis. This is the sensor for measuring extreme dynamic accelerations encountered in applications such as rocketry experiments and high-impact shock measurements.![sensors_1413_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/010/618/medium640/sensors_1413_LRG.jpg?1377368066)

## How it Works:

## MEMS - Micro Electro-Mechanical Systems
The sensor consists of a micro-machined structure on a silicon wafer. The structure is suspended by polysilicon springs which allow it to deflect in the when subject to acceleration in the X, Y and/or Z axis. Deflection causes a change in capacitance between fixed plates and plates attached to the suspended structure. This change in capacitance on each axis is converted to an output voltage proportional to the acceleration on that axis.  
  

## Ratiometric Output
Ratiometric output means that the output voltage increases linearly with acceleration over the range.   

- For the ADXL335, that is approximately 0v at -3G to 3.3v at +3G.  
- For the ADXL326, that is approximately 0v at -16G to 3.3v at +16G. 
- For the ADXL377, that is approximately 0v at -200G to 3.3v at +200G. 
- For all modules, the output at 0G in each axis, is about 1/2 full-scale, or 1.65v.  

  
Info: 

- [Next Page](https://learn.adafruit.com/adafruit-analog-accelerometer-breakouts/assembly.md)

## Featured Products

### ADXL335 - 5V ready triple-axis accelerometer (+-3g analog out)

[ADXL335 - 5V ready triple-axis accelerometer (+-3g analog out)](https://www.adafruit.com/product/163)
We've updated our favorite triple-axis accelerometer to now have an on-board 3.3V regulator - making it a perfect choice for interfacing with a 5V microcontroller such as the Arduino. This breakout comes with 3 analog outputs for X, Y and Z axis measurements on a 0.75"x0.75"...

In Stock
[Buy Now](https://www.adafruit.com/product/163)
[Related Guides to the Product](https://learn.adafruit.com/products/163/guides)
### ADXL326 - 5V ready triple-axis accelerometer (+-16g analog out)

[ADXL326 - 5V ready triple-axis accelerometer (+-16g analog out)](https://www.adafruit.com/product/1018)
We've now got a wider range version of favorite triple-axis accelerometer - it even has an on-board 3.3V regulator - making it a perfect choice for interfacing with a 5V microcontroller such as the Arduino. This breakout comes with 3 analog outputs for X, Y and Z axis measurements on a...

In Stock
[Buy Now](https://www.adafruit.com/product/1018)
[Related Guides to the Product](https://learn.adafruit.com/products/1018/guides)
### Adafruit METRO 328 Fully Assembled - Arduino IDE compatible

[Adafruit METRO 328 Fully Assembled - Arduino IDE compatible](https://www.adafruit.com/product/50)
We sure love the ATmega328 here at Adafruit, and we use them&nbsp;_a lot_&nbsp;for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we need to go small, we use a <a...></a...>

Out of Stock
[Buy Now](https://www.adafruit.com/product/50)
[Related Guides to the Product](https://learn.adafruit.com/products/50/guides)
### ADXL377 - High-G Triple-Axis Accelerometer (+-200g Analog Out)

[ADXL377 - High-G Triple-Axis Accelerometer (+-200g Analog Out)](https://www.adafruit.com/product/1413)
 **Discontinued -**  **you can grab the&nbsp;** [ADXL375 - High G Accelerometer (+-200g) with I2C and SPI - STEMMA QT / Qwiic](https://www.adafruit.com/product/5374) **instead!&nbsp;**

**Please note: The ADXL377 is "End of Life", <a...></a...>**

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1413)
[Related Guides to the Product](https://learn.adafruit.com/products/1413/guides)

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