FAQ: Interface ADIS16364 with Arduino

Q:

How do I connect the ADIS16364 to my Arduino processor system?

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A:

This software package is an example of how to interface an ADIS16364 iSensor with an Arduino, and plot the data with a simple python program. This project can be used as a whole package, or you can use it to pick and choose code for things such as SPI communication, two's complement conversion, memory map for ADIS16364, python plotting, python serial communication, and much more.

The code project can be found on git hub:

https://github.com/agleason6/ADIS16364_example.git

From there you can download a .zip file, or clone the repository, or you can download the stable version from this FAQ page. Note that if you download the .zip file from github, you will have to change the name of the directory to just "ADIS16364_example"; github adds extra text to the directory name.

What you'll need

• Arduino Uno or Arduino Mega 2560
• ADIS16364 with breakout board
• Jumper wires
• Arduino IDE
• Python with modules below, I tested this on Python 2.7
  • pySerial python module, see http://pyserial.sourceforge.net/
  • NumPy python module, see http://numpy.scipy.org/
  • SciPy python module, see http://www.scipy.org/
  • matplotlib python module, see http://matplotlib.sourceforge.net/

Connections

Using jumper wires, make connections from the ADIS16364 breakout board to the Arduino

as shown below:

Arduino Uno Connections:

CS   (J1-3)  - to digital pin 10 (SS)

SCLK (J1-2)  - to digital pin 13 (SCK)

DOUT (J1-4)  - to digital pin 12 (MISO)

DIN  (J1-6)  - to digital pin 11 (MOSI)

VCC  (J1-12) - to 5V

GND  (J1-9)  - to GND

Arduino Mega 2560 Connections:

CS   (J1-3)  - to digital pin 53 (SS)

SCLK (J1-2)  - to digital pin 52 (SCK)

DOUT (J1-4)  - to digital pin 50 (MISO)

DIN  (J1-6)  - to digital pin 51 (MOSI)

VCC  (J1-12) - to 5V

GND  (J1-9)  - to GND

See ADIS16364 datasheet Rev D, Figure 18, pg 17 for illustration of J1 and J2 connectors

http://www.analog.com/static/imported-files/data_sheets/ADIS16364.pdf

How to use

Once you've installed everything above, and made all the proper connections, it's time to

program the Arduino. First open up the ADIS164364.ino file with the Arduino IDE.

Press verify, and upload (after which you have properly setup the IDE with serial port, and device).

Now close the IDE, because you may have issues with the python plotting if you have both

programs trying to access the same serial port.

Plotting data with Python

usage: plot_data.py [-h] -p PORT -r RATE [-b] [-n NUM] [-s]

optional arguments:

  -h, --help            show this help message and exit

  -p PORT, --port PORT  Serial port, ie /dev/ttyACMX on Linux, or COMX on Windows

  -r RATE, --rate RATE  Baud rate

  -b, --bar             Show Bargraphs Instead of line plots

  -n NUM, --num NUM     Window width, default is 100 points

  -s, --smooth          Make lines look smoother

To run on Windows (COMX being the COM port that your Arduino is connected to):

python plot_data.py -p COMX -r 9600

To run on Linux:

python plot_data.py -p /dev/ttyACMX -r 9600

if you don't have udev setup for your Arduino, and you get permission issues, try running it as root:

sudo python plot_data.py -p /dev/ttyACMX -r 9600

Note: plot_data.py samples data as fast as python can plot, so it will run significantly slower than what the part is capable of. Please do not use this script to gauge the performance of the part. If you want to analyze performance, please checkout ADISUSB.

http://www.analog.com/en/mems-sensors/mems-inertial-sensors/adis16364/products/ADISUSB/eb.html

Enjoy,

agleason