Hi to the community.
I jut got an lcd screen that i would like to connect to my "ESP32 DevKitV1".
Unfortunately the seller (aliexpress) did not provide any datasheet or infos in no kind of way, so before i start to experiment i would like to know if somebody can help me to understand what kind of screen it could be and how to correctly wire it to my esp32?
I only know that is called "12864-20M V3.8" and works at 5v (hope is right what was written on the seller page about the voltage.)
The final project would be the esp32 receiving metadata from and android device to display it all on the screen but since i'm new in this world i would love to start from little steps once at time.
1st Step: the right way to wire the hw i'm going to use.
Im providing some pics of the screen and the esp2 im going to use fot his future project.
Thanks in advance.
Just google the part number.
This showed up on google and seems like a good start.
https://www.instructables.com/ST7920-128X64-LCD-Display-to-ESP32/
Thanks for your answer. I saw that link days ago but it has a potentiometer to handle the back light levels and my screen already has one on the back of the screen (back on the bottom left - close to "R8" position).
I even seen this video that might seem similar to my situation (even if the screen is not exaclty the same) "https://youtu.be/nhdHL16dlm4?si=1M4RXYwUJaF6wubz", but before start i would wait for some advices.
On that video is provided the wire schematic connection with an esp32-S (a little different than mine but i guess that i can look for the same specific gpio on mine and replicate the connections with the equivalent ones that may be located in diffetens places)
It also provide the specific code to display stuff on the screen.
and seem to do not need any expander since it seems all is arelady built on the screen.
Can i damage the screen if some connections are wrong? i would not miss or exchange the gnd and voltage ones, but the other ones could be potentially different.
The pot is sometimes pre-installed and sometimes not. It makes NO difference to the rest of it. Good luck.
