Arduino + Accelerometer + Gyro + Bluetooth

I am very new to arduino and this is my first project in this field. I wanted some advice on what materials to buy before I actually start my project. My project consists of building a wireless device which will send its orientation info to a computer.
This device will consist of an accelerometer and a gyro interfaced with arduino board. Arduino should be able to read the sensor values and send this to a computer via a bluetooth module.

From going through many blogs and forums I zeroed in on these materials for the device :

  1. Arduino Uno - R3 (https://www.sparkfun.com/products/11021?)
  2. Bluetooth Mate Silver (https://www.sparkfun.com/products/10393)
  3. IMU Digital Combo Board - 6 Degrees of Freedom ITG3200/ADXL345 (SparkFun 6 Degrees of Freedom IMU Digital Combo Board - ITG3200/ADXL345 - SEN-10121 - SparkFun Electronics)
    I will have to solder the bluetooth mate silver and imu board onto the arduino.

I wanted to know whether there is a simpler way of achieving the same. Is there any shield for bluetooth and the sensors. I want the hardware connections to be as simple as possible.

I am very new to arduino and this is my first project in this field. I wanted some advice on what materials to buy before I actually start my project. My project consists of building a wireless device which will send its orientation info to a computer.
This device will consist of an accelerometer and a gyro interfaced with arduino board. Arduino should be able to read the sensor values and send this to a computer via a bluetooth module.

Ok that is realitivly simple. Does your computer have built in bluetooth your do you need a BT dongle?

your choices of parts are good, and I dont think you need solder the silver mate to the arduino. It should have pins that you can just run wires from into the arduino.

Thank you for such a quick reply!
N yes, my computer has an inbuilt buetooth support. So i wont be needing BT dongle.

And probably i will b needing a right-angle female header and a set of jumper wires for connecting the bluetooth mate to the arduino.

ok, thats good.

Those parts are good, but you should still shop around and look for alternatives just in case. There are usually cheaper ones that do the exact same thing, is what im getting at.

Did you start on any code, or are you totally starting fresh with no programming knowledge?

The problem with using cheaper materials is that it will be difficult to find enough documentation and tutorial on using them.

I have been through these tutorials for the connections and code.

For bluetooth mate :
http://www.sparkfun.com/tutorials/264

For IMU :
http://bildr.org/2012/03/stable-orientation-digital-imu-6dof-arduino/
http://www.varesano.net/blog/fabio/my-first-6-dof-imu-sensors-fusion-implementation-adxl345-itg3200-arduino-and-processing

I will probably modify and build upon the code given in these tutorials.

Unfortunately I am at work right now and Im unable to see the codes, but I do like the parts you have. Someone else may have another suggestion for parts so, wait awhile before getting anything. What you can do in the mean time is download the codes and study them if you can, this way when you do have the parts, you can have a little better understanding of what your doing.

Yup I will go through all the code and the datasheets and try to find any cheaper ways of building my device.
And thanks again for your suggestions. :slight_smile:

NithinBiliya:
My project consists of building a wireless device which will send its orientation info to a computer.

This seems very similar to the problem of controlling an autonomous flying drone, so it would be worth checking on the specialised hardware and software used for that. I understand there are Arduino variants with the necessary sensors integrated, which could simplify your hardware, and the associated Arduino/quadrotor algorithms to fuse the sensor inputs to derive orientation and position, which would simplify your software development substantially.

I wanted to use Arduino Uno instead of other variants with the integrated sensors because it would allow me to use the same arduino board for other projects in future.
N I will surely look into Arduino/quadrotor algos.
Drones make use of magnetometer for heading and barometer for altitude measurements. Not sure whether I will be needing them in my device.
Thanks for your suggestions.

Just one more querry... My device is supposed to be wireless. So I will be needing a battery to power the arduino and the other components... Any suggestions on which battery I need to buy?
I would prefer a rechargable battery that can power the device for atleast 2 hours.

Are you familiar with RC cars? They have 9.6V rechargeable batteries that will work, I know, im using one for my robot. It doesn't last 2 hours but thats because it is only rate for 1500mAh. You need like 3 - 4000 mAh for continious uses.

Ok thanks. Will look into that.