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Calculator

 
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deligent



Joined: 30 Mar 2009
Posts: 2

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Calculator
PostPosted: Mon Mar 30, 2009 10:23 am     Reply with quote
Can anyone help me with a code for a hexadecimal calculator using PIC16F88
the input should be through a 4x4 keypad and the display should be on a 16x2 LCD
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Mon Mar 30, 2009 11:09 am     Reply with quote
Use this LCD driver:
http://www.ccsinfo.com/forum/viewtopic.php?t=28268
Be sure to set the LCD contrast pin at about .5 volts initially,
so you can see the characters.

Use this keypad driver.
http://www.ccsinfo.com/forum/viewtopic.php?t=26333
Make sure that you put 10K pull-up resistors on the row pins.


Use different pins for the LCD and the keypad.
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