Electronics How Can I Match My LCD Labels to a Tutorial's Labels for an Arduino Project?

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The discussion revolves around a user's attempt to start an Arduino project involving an LCD screen, highlighting a mismatch between the LCD model used in the tutorial and the one they possess. The original project utilizes an LCD that communicates via I2C, sending data one bit at a time over SDA and SCL lines. In contrast, the user's LCD requires 8 bits of data at once through D0 to D7 connections, along with additional control signals. This discrepancy suggests that the user would face significant challenges in adapting the project without the correct LCD model. It is recommended to find an LCD that matches the tutorial to avoid complications. The conversation also touches on the possibility of modifying connections, but caution is advised due to the complexity of the project. For those seeking a simpler starting point, an alternative tutorial is suggested.
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Hi.
I'm trying to get something started on an Arduino Project and I've never done one before, so I'm looking for a little clarification.
If you have a look at the posted images, you can see that the "labels" for the LCD screen for the tutorial and aren't the same as the labels for the LCD screen that I have. I'm wondering how I can decipher between them so mine will match the authors?
Here's a link to the project.
https://tutorial45.com/arduino-stopwatch-project/
 

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Oops. Can't do it without extra circuits and/or some messy programming.

The problem is the original project sends data to the LCD one bit at a time over one wire labeled SDA (and a Clock signal on SCL), the LCD you have wants 8 bits of data at a time to the connections labeled D0 thru D7, along with some other control or addressing information on 6 more connections.

Save yourself a headache (or three) and try to get an LCD display that matches the project.

Sorry. :cry:

Tom

p.s. Let us know how it turns out!
 
Unreadable, it will be difficult to help. Picture on the left is rather strange, I didn't know Fritzing allows connections to rather random points on the object.

VCC and GND are trivial. The other two looks suspicious, unless I am misunderstanding something. Hitachi LCD requires much more connections to work (don't remember how many, if memory serves me well it depends on the mode of operation, but it is something like 8 minimum).
 
Tom.G said:
the LCD you have wants 8 bits of data at a time to the connections labeled D0 thru D7

I think it has a mode of operation that allows using just four lines, but I can be wrong.
 
Well shoot. Looks like Ill look for another project that matches what I have. Thanks everyone.
 
If you like the project it should be easily possible to modify just the way LCD is connected (although what I see would make me very careful about the rest of the project).
 
Borek said:
If you like the project it should be easily possible to modify just the way LCD is connected (although what I see would make me very careful about the rest of the project).
I think Ill just find one that will work as I just want one that will get the parts and stuff working. Found a couple that seem to match
 
Awesome thank you
 
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