Serial on RPi B works; won't work on RPi Zero W
Posted: Sat Jan 18, 2020 4:40 am
I have an old RPi B (yes, the 2012 board) that I used to prototype a serial device. I went to move everything to a RPi Zero W so it would fit in a smaller project case, but I couldn't get the serial connection to work. Things I tried:
- Yes, I have disabled the terminal on the serial port, edited /boot/cmdline.txt and /boot/config.txt, etc.
- I thought maybe I did a bad job soldering and damaged my Zero W, so I tested it on another Zero W. Same result.
- I cloned the SD card from my RPi B to my micro SD for the Zero W using dd. Same result.
- I downloaded the latest Raspbian and started fresh. Same result.