Keypad Lock with LCD display with PIC16F84. Help needed

gfactor · Sep 20, 2009

lcd pic 16f84

Please anyone with full circuit and description on how to make a keypad lock with LCD and I am trying to use PIC16F84. I am planning to make it 4 by 4 which will inlude alphabets A, B, C, and D

wizpic · Sep 20, 2009

how to make a keypad lock

Have a look here all the info you need

http://jap.hu/electronic/combination_lock.html

and here
**broken link removed**

These should give you all the info you need to build one the first uses a 16f84

bjhotmail · Sep 23, 2009

a description and the source code for a 3x4 keypad with 16x2 LCD can be found here:http://www.piclist.com/techref/microchip/3x4Key-4bLCD-Lock.htm
it was a design for a code lock, not the best bit of software but it works

Keypad Lock with LCD display with PIC16F84. Help needed

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