Look at the title of the forum. It is an Arduino forum. It is not a Raspberry forum.
that is to be found at https://forums.raspberrypi.com/
So why ask here? Especially as you haven't bothered to read. How to get the best out of this forum
which tells you want you need to provide when you ask a question here.
I moved your topic to an appropriate forum category @yaserfaruq.
In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.
This is an important part of responsible forum usage, as explained in the "How to get the best out of this forum" guide. The guide contains a lot of other useful information. Please read it.
Thanks in advance for your cooperation.
H 0x48
e 0x65 -> d 0x64
l 0x6C
l 0x6C
o 0x6F -> n 0x6E
0x20
W 0x5F -> F 0x46
o 0x6F -> n 0x6E
r 0x72 -> b 0x62
l 0x6C
d 0x64
The lowest bit for both nibbles is always zero. Check the path from the DB4 pin.
That is a 5V LCD display. Can you buy a 3.3V display ?
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