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If you are unfamiliar with the project please check out the posts linked below :
OBWIous – Opensource Bluetooth Watch Initiative Announcement
Update on the OBWIous
Hi my fellow readers ,
In this post , i wanted to share the story behind the bluetooth watch project and answer some questions like why , how and when…
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Hi my fellow readers,
It has been quite a while since i switched to N900 from my old smartphone the N95.And finally im finding some Apps with very nice UIs and features.
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Hi everybody,
Lately i’ve been spending my spare times to build an homemade bluetooth wristwatch.I’ve used Nokia 6610 LCD for display, Bluesmirf GOLD for the bluetooth and Arduino Mini Pro for the processing.
I just finished most of the soldering & electronics part yesterday… Only one thing left on the electronics part and that is adding some buttons onto the watch.
I’ve written a bluetooth client application for N900(Maemo5). But it still needs some improvement on User Interface. So to speak back-end for N900 is done..
Today i made a simple Graphical User Interface for the watch and i recorded a video to introduce User Interface.
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I just got my Arduino Mini Pro & Bluesmirf GOLD yesterday. Im running some tests and practicing some stuff with them. Since yesterday , my personal achievements are “Using Arduino as an ISP Programmer” , “Communication through bluetooth with Bluesmirf”.
I used an old arduino of mine – which is a so called Arduino Severino – to program Arduino Mini Pro.I had a RS232 to USB converter so i could program it with my laptop. But the uploading process was quite tricky. Im going to write down the tips and tricks here in case i forgot , i dont want to struggle with whole that all over again.
Make sure baudrate is 19200
Switch Arduino Severino to Serial Enable Mode( Move (JP0)Serial Female header to 2-3 pins ).
Click upload button and wait for the “sketch size bla bla” notification appear below , when it appears press reset button asap…
Communication through Bluesmirf is no different than Serial Comm. But make sure you connect Tx-Rx pins reverse. Tx(bluesmirf)->Rx(arduino)……
And here are some photos and a video demo. of what i have done so far…
More Photos
I just had an idea yesterday that can get me to make a self-balancing robot without buying any expensive electronic components.
You know last summer i made a cellphone controlled RC Car which had a tabletpc onboard to get commands via bluetooth.That time , having an onboard tabletpc , save me from buying a bluetooth chip which costs about 60$.
This time, to make a self-balancing robot i’ll have to have whether an Accelerometer or a MEMS Gyro to track rotation of the robot.
Those sensors are pretty expensive too.So i’m thinkin about putting my n95 smartphone onto the robot.As i have Accelerometer on the smartphone i can use it to measure rotation movement of the robot.
I tried to explain how it is going to work in the photo.
And the finished robot will look something like this:
Hi my fellow readers,
Today, i’ve been working on re-building my NarDuino car project all day . So why am i rebuilding it?. Because i decided to rebuild the motor driver ,that i’ve used on narduino, onto a veroboard so i can use it later on other motor controlling involved projects. It has been quite an hard thing to do since i have no experience at soldering at all. But i just started and finished it.
