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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.
hi... can i ask is there anyway to test whether an external LCD is working w/o connecting it to PIC18f452 and running a program? is there any way like we can just enable the LCD and the LCD should at least show a cursor to indicate that it is working..
hi... can i ask is there anyway to test whether an external LCD is working w/o connecting it to PIC18f452 and running a program? is there any way like we can just enable the LCD and the LCD should at least show a cursor to indicate that it is working..
If you just connect power and a contrast control, by turning the contrast up you should be able to see a line of block characters - this is as much testing as you can do without connecting it. It's also what you get if your driving program isn't written correctly!.
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