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Index › Programming Questions & Help › Electronics,  Serial Library › Light LED's via Serial Port, Processing
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Light LED's via Serial Port, Processing (Read 1366 times)
electro38
Light LED's via Serial Port, Processing
May 15th, 2008, 3:11pm  
Could anyone refer me to any examples of a simple Processing program or tutorial for turning LED's connected to a PC's serial port on and off.

I have an Arduino board, however do I need the Arduino board to do this?

Processing ---> PC Serial Port ----> LED's

Thanks for any help.

Tony
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rrrufusss
Re: Light LED's via Serial Port, Processing
Reply #1 - May 19th, 2008, 9:28pm  
I seriously doubt that this would work due to the nature of serial communication.  There's only one pin for data, so there's no mapping of bits to individual pins.  No matter what data you send to the port, you'd just be strobing the data pin really fast as the serial data was sent out to the LED.

http://pinouts.ru/SerialPorts/Serial9_pinout.shtml

I know that you can address several (seven or eight I would expect) individual pins of the *parallel* port, but I've never tried that with Java.

How many LED's do you need to control?
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garglebutt
Re: Light LED's via Serial Port, Processing
Reply #2 - May 29th, 2008, 5:54am  
You need to do:

Processing ---> Arduino ---> LEDs

Here is a trivial example:

http://everybody.is-a-cyb.org/project/21
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