Re: 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)