ez430 chronos – Turn on display using accelerometer

October 24, 2010 at 9:58 pm | Posted in ez430 chronos, idea, MSP430, My Projects | 5 Comments

This is my first attempt creating a simple application for the ez430 Chronos watch.
I was trying to find out how to use the provided sample codes from TI using the Code Composer.

So, I had a simple idea to turn on/off the display depending on the orientation of the watch using the built-in accelerometer.
This application is a modification of the sportwatch sample application.

I know, I know. This is not so power efficient.
Look at the Estimated Battery Life from TI manual above, whoa… I would drain the battery in one and half months for continuous acceleration measurement. This simple application of mine is simply not practical using this watch.
But hey…, the idea is simple and it is a start to develop more complex application.

5 Comments »

RSS feed for comments on this post. TrackBack URI

  1. Hi

    I wonder is there any chance to get the source code?

    Thanks in advance
    Ali

  2. Nice post !
    Here’s a quick and slightly advanced Hello World example, that deals with how to display some scrolling text on the watch itself:
    http://trandi.wordpress.com/2011/09/03/ti-ez430-watch-unbox-hworld/

    Dan

  3. The estimate of 1.5 months is for _continuous_ accelerometer usage. For your planned application it would be sufficient to only wake up say 5 times per second and check for a change in orientation. That should give you a battery life of 1-2 years or so.

    • Yep, true. Thanks Marco.

  4. hey there where can i find the sourcecode pls ?


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Create a free website or blog at WordPress.com.
Entries and comments feeds.

%d bloggers like this: