- 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.
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.
Note that the specified device ranges are guaranteed minimum ranges. Most actual devices will have a somewhat wider usable range. Also, due to manufacturing variations the zero point may be slightly offset from exactly 1/2 scale. We will discuss how to calibrate the range and offset in the Calibration and Programming section of this guide.