LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
... the symbols on the LCD have black colour. If I don't use this line, they have white colour. Without the lcd.begin() line I I still can't display some letters. Why does the lcd.begin changes the text colour from white to black? White is much more visible on blue backlight. Is there a way to avoid it?
As far as your other problem goes - you appear to be having trouble with your LCD DB7 line (pin 14), it is always low. This may be a problem with your soldering or with your breadboard.Don
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16