https://www.hackster.io/niftyjoeman/osepp-lcd-and-keypad-shield-d5b46e
I follow the instruction and import the library and restart my arduino IDE.
I choose one of the example and hit compile and upload.
but my OSEPP LCD DISPLAY still not displaying anything correctly. I hit all the buttons, and still the same
What's wrong?
Such things can easily happen, if for example a wire is missing or there is a timing mismatch. But you don't have wires.
Do you use an Arduino Uno board ?
Is nothing else connected to pin 4,5,6,7,8,9 ?
Yes, double-checking every connection is a very good idea - it only takes one thing wrong to
stop things working, and usually there are a lot of things to get right.
You saw the comment on that page about the Wire library?
Koepel:
Such things can easily happen, if for example a wire is missing or there is a timing mismatch. But you don't have wires.Do you use an Arduino Uno board ?
Is nothing else connected to pin 4,5,6,7,8,9 ?
It cannot missing, that LCD module just drop into the Arduino Uno. I checked the pins and they lined up.
The LCD might be broken or the sketch could be wrong. Is the Arduino LiquidCrystal library used, or an own library ?
Could you try an example of the Arduino LiquidCrystal library ? The "HelloWorld" example is one of the examples that is already in the Arduino IDE.
