Looking forward to the update, and testing the 'update via USB stick'.
Regarding the 1602 LCD, I don't want to teach you to suck eggs, but it might be something helpful? - I was building a device with a 1602 LCD and mine was not the normal one, the address needed to be changed, I think the usual one is 0x27, but this particular display was 0x3f.
This was all on an Arduino and I needed to change the address. I think the 'project creator' now has both addresses in the code. It might help on improving compatibility with 1602 displays?
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