I started using an 16x2 LCD today. But the problem is i sometimes i have to upload the code many times. Why i have to do this is because i get wierd symbols in the display on some uploads.
For example, one time i might try to display "Hello" and would get "QD4" or something like that. So i upload a few more times and after some attempts it works.
Anyone know what it could be?
Im pretty sure i wired it correctly, and it is working "most of the time"