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Post by John on Feb 5, 2006 15:06:18 GMT 10
Hi, i am trying to get a serial cld working with a megga 32 and have a few questions, firstly does it matter which pin i put it on to? I presumed that it should go on to the rs232 but it cant because it has a rx and a tx wheres the lcd only has ser, ground and 5v, also i thought because it was for comunication with the pc it would be 12v. As i said i am a bit confused.
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Post by Dingo on Feb 5, 2006 23:03:42 GMT 10
First, warning - don't plug it into 12V unless you are sure it is expecting it (most things like this will expect 5V or less - more than this kills them)
Ok, do you have a number or part description for the serial LCD you have? (i.e. where did you get it and did it comewith a data sheet).
If it is a serial LCD module then all you should have to connect is Ground, 5V power and the Ser serial line. (Tx from the Mega32).
Btw it might be a good idea to run the rs232 through a max232 IC or similar to get the voltage levels right - this is especially true if the cable you are running to the LCD is over 1 meter in length.
Also what sort of thing are you doing with this setup? and is there anything special or unusual about it (backlight, wireless etc).
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Post by ukuj on Dec 15, 2010 12:36:58 GMT 10
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