03-26-2019, 05:29 AM
(03-24-2019, 10:15 AM)AZClusterboard Wrote:(03-21-2019, 05:11 PM)PigLover Wrote:(03-21-2019, 12:09 PM)AZClusterboard Wrote: Oh, and fair warning: The USB tries to power the board so you might have to play with it a little to get it to communicate properly.
Don't connect the 5v power. All you need are gnd and the two signal leads (rx/tx). Connecting the power can actually damage things... (unlikely, but possible).
I did some testing and it looks like you don't need the power but you do need the ground. I'll update my instructions after I get done trying to fix armbian today.
That's correct. At minimum to make a bidirectional serial connection (that's not differential voltage,) you need RX, TX, and GND.