Has anyone written up code for this backpack? I don’t want to re-invent the wheel if it has already been nicely done, if not, I have one wired up and am going to start working away on some. They might take up room and more power, but serial is great for only needing to use 1 pin.
So, everything works on the LCD at 3.3V except for being able to see the text. Definitely requires 5V. Unfortunately, I want to run this project on a 3.7V LiPo. Hmmm.
Ordered this 5V boost convertor.
I’ll post the backpack code shortly.
Fully working code posted on my GitHub page for this backpack. All basic functions and RGB settings for RGB LCD’s.