[Tinyos-help] can I use pin 8 (I2C Data) on Tmote as Digital I/O pin?

[Michael Schippling]

Unfortunately the two I2C pins are shared with the radio
so it's best (IMHO) to avoid using them...if you need more
I/O the SVS "connector" has one more usable pin and you
could solder into where the onboard sensors go too.

MS

yicheng wrote:
> Hi Folks,
> 
>  
> 
> I want to use pin 8, which is I2C data pin on Tmote sky as a digital I/O 
> pin, is it possible? Here is my code example:
> 
>  
> 
> Configuration file:
> 
> Myapp.digitOut -> MSP430GeneralIOC.Port31;
> 
>  
> 
> Implementation file:
> 
> uses interface MSP430GeneralIO as digitOut;
> 
>  
> 
> init function:
> 
>       call digitOut.setLow();
> 
>       call digitOut.makeOutput();
> 
>       call digitOut.selectIOFunc();
> 
>  
> 
> What does “I2C data” pin mean?
> 
>  
> 
> Thanks!
> Yicheng
> 
> 
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> 
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-- 
Platform: WinXP/Cygwin
TinyOS version: 1.x, Boomerang
Programmer: MIB510
Device(s): Mica2, MicaZ, Tmote
Sensor board: homebrew