Re: [PHP] I2C and PHP

Tobias Krieger wrote:

> So, what I need is a way to convert any value between 0 and 255 into a
> string with one byte, e.g
> 
> 0xff = 1111 1111 (with strlen($data) == 1)
> 
> I tried it with:
> 
> chr(255) - not successfull
> pack("H" and "h", 0xff) - not successfull
> decbin(255) - without success
> 
> And many more variations....
> Any ideas, suggestions, .... Thanks!

I tried the following:

$d=chr(255);

$f=fopen('klop','w');
fwrite($f,$d);
fclose($f);

The produces a file called 'klop' containing exactly one byte = 0xFF.
That should work with your /dev/i2c interface as well - if not,
something else is getting in your way. 
 

/Per

-- 
Per Jessen, Zürich (16.9°C)