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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Matrix keypad programming

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I was looking last night i figured that the full thing was 7000.
I could of got it free for life 12 years ago
 
I don't have full access of Proteus. I am using free version. I can debug file to single step but I can't see the code
Seemed to be okay in post #59.... What are you expecting..
 
That's a connection error... Show me you circuit in proteus.... I needed 4 pullups on key port as the port needs to see 5v on each row and 0v if a key is pressed..
Please look at circuit
keypad4.jpg

Does my connection looks right ?
 
Proteus Is not much good if your using the free copy you be way ahead to buy a handful of parts and use the real thing plus learn how to use your IDE it have a sim built into it.
 
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