I want to program the text to a 2 line 5 x 7 LCD module. But before I do that in a language I am experimental with just the LCD module with a push button for the clock or enable signal and some DIP switches for the data signals. When I finished setting up the LCD and proceed to input letters to the LCD, some letters are fine however some letters come out incorrectly. I adjust the DIP switches for the appropriate hi's and lo's for that letter however, when I clock the data into the LCD, a different character comes up and when I clock it again and again, I get different letters. I notice however that the letters that are different sometimes have similarities in the binary number either in the high nibble or low nibble. Is my LCD busted? It's a new one and took me ages to wire this thing up. I am using breadboard to hold it all together. What could be the source to this problem?
- posted
17 years ago