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Linux


Electronic forms integration by modifying the Linux or Unix Printer Driver script file

When trying to load binary images through a parallel port, as with the simple DOS command:> 

COPY <filename> LPT1 /B

You might have the best luck with the following UNIX command: 

 dd if=<sourcefile> of=/dev/lp0

'dd' is a handy utility to perform raw transfers without adding any extraneous characters. If dd is not available, try 

 cat sourcefile > /dev/lp0

See also

See also:

file: /Techref/os/linux/printing.htm, 0KB, , updated: 2002/7/1 10:57, local time: 2012/2/9 00:09,
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Quick, and RELIABLE! RCL-1 RS232 Level Converter in a DB9 backshell only $15.00
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232!
 

Robotics nuts!

Check out http://users.frii.com/dlc/robotics/projects/botproj.htm from Dennis Clark. This guy ROCKS! He has made (and sells but also releases code, docs, etc...) for a number of cool little robotic modules including whiskers, IR proximity detect and remote control, Sonar proximity detect, PWM, Servo, compass. Most of these use the little PIC 12C508 controller which costs basically nothing and is soooo tiny.
The 4 servos, 2400 baud serial servo controller is a wonder of magic and he sells the programmed chip for $8. Wow!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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