premkumar9
Member
It was as 1 line (command 0x30). Now changed to 0x38. Still same problem continues. I doubt whether this is a defective piece since 8 to 16 didn't change with contrast (when supply alone is given) while 0 to 7 became black boxes.
Sorry for asking a question which was answered earlier in this forum. But I couldn't locate that answer. Question is that there is a way to give variable delay to the LCD unit (instead of giving fixed delay) by monitoring the status of some pin or so. What is that method?