Grove - 3-Axis Analog Accelerometer

The ADXL335 is a small, thin, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ±3 g.
The module was designed as breakout board because ADXL335's signal is analog( more ports requested ). But the board outline is grove module that you can fix it conveniently like other groves. The sensor combined 3.3 and 5V power supply, can be used in standard Arduino device and Seeeduino Stalker. The following program code includes first-order filter which can make the output smoothly if the sensor was used in robot or toy car.

Features

Wide power range DC3V to 5V
Grove outline
3 axis sensing
Small, low-profile package: 4×4×1.45mm LFCSP
Low power 350µA at 3V (typical)
High sensitive
10,000 g shock survival
BW adjustment with a single capacitor per axis
RoHS/WEEE lead-free compliant

Application Ideas

Motion Sensor
Shock detector
Vibration sensor
Toy car
Robot

Usage

The sensor's outline is breakout board, you can welding wire in the board or use jumper wire to connect the sensor.

The VCC connect to power source（DC5V or DC3.3V）, GND to ground, X to Arduino analog port A0, Y to A1, Z to A2.
Download the File: 3-Axis Analog Accelerometer Library and Unzip it into the libraries file of Arduino IDE by the path: ..\arduino-1.0.1\libraries.
Regulate the sensor

The sensor is analog device, you should regulate the sensor before combining it to you system.

Step 1:Open the Demo: Calibration and upload it to Arduino.Please click here if you do not know how to upload.

Step 2: Open your serial monitor, make sure the sensor is connected. Follow the axis institutions printed on sensor's board. First, make sure that Z-axis direction is straight up, please type any character if you are ready. Change the sensor position, repeat the above operation to obtain X-axis and Y-axis direction are straight up .

Step 3:You can get these value as show above. Please modified the macro definitions with these results in ADXL335.h

Now the calibration has been completed.

Downloading the demo code: Measuring Acceleration, then open serial monitor, turn the sensor any angle, you can see the digital angle value sent from the accelerometer to the monitor.

Resources

Grove - 3-Axis Analog Accelerometer Eagle File

3-Axis Analog Accelerometer Library

github repository for 3-Axis Analog Accelerometer

ADXL335 datasheet.pdf

Support

If you have questions or other better design ideas, you can go to our forum or wish to discuss.