Set digital pins hd44780

I think I get what you mean. You need all the analog pins on your Arduino Nano (clone). Since A4 and A5 are also the I2C SDA and SCL pins, you have a conflict here. Therefore, you want to free up A4 and A5 for other tasks, and use some other pins such as D2 & D3 for I2C duties.

Perhaps with this little translation @bperrybap can follow up on his remark that could lead to a solution:

He's trying to say so :wink:

Guys, this is not just a hardware design issue or an issue with someone understanding how I2C works - this is mostly a language issue. It's clear to me that @ali_alfoly is from an Arab-speaking country and using Google Translate (or something similar) to communicate with us. This leads to some odd formulations sometimes (such as 'analog pins firing'). But then again...isn't it great that we're able to talk at all? 15 years ago we wouldn't even be able to have this conversation!

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