02:24 <Armbian-Discord> <c​lever> basically, there are 2 uarts, ttyAMA0(pl011 based) and ttyS0(broadcom custom, called mini-uart or aux-uart)

02:24 <Armbian-Discord> <c​lever> the pl011 uart is the good one

02:24 <Armbian-Discord> <c​lever> when the model has bluetooth, ttyAMA0 goes to the bt by default

02:24 <Armbian-Discord> <c​lever> /dev/serial0 is always the one on the gpio header, when the right scripts maintain that for you

02:25 <Armbian-Discord> <c​lever> if the model lacks bt (or you disable it), then ttyAMA0 is free for use on the gpio header

02:25 <Armbian-Discord> <c​lever> in both cases, you need enable_uart=1 to allow linux to use whichever got assigned to the gpio header

02:27 <Armbian-Discord> <c​lever> the pi4 adds several extra pl011 uarts, but they operate independantly, and dont have any of that confusing mess

02:28 <Armbian-Discord> <r​pardini> yeah I got it, after Tenkawa and c0rnelius pointed me to it, but I had no idea before that. I had a couple 4b's with no problem and ofc "just assumed" 3b would be the same. Damn, broadcom, what a mess. Anyway both 3b+'s sold already 😄

02:28 <Armbian-Discord> <c​lever> pi4 and pi3 both have bt, so they function the same way

02:28 <Armbian-Discord> <r​pardini> Can literally feed family for a month on their 2nd hand price alone

02:29 <Armbian-Discord> <c​lever> if you always use /dev/serial0, then you dont need to disable bt

02:29 <Armbian-Discord> <c​lever> it should just work on any model