I'm using Raspberry Pi 4 with Ubuntu Server OS 20. I want to read some sensors with the serial channels. I've done this a few months ago using 'ttySC0' and 'ttySC1' on the same Pi and they worked. But now I can no longer find these ports in 'ls /dev':I figured maybe the port names were changed so I tried reading the channels with all the tty ports available but none of them works. I'm sure that the sensors and code I'm using are working.
I've tried going to '/boot/config.txt', add these and reboot:I've tried this to enable permission to all tty ports:None of these solutions work. Any help is appreciated.
I've tried going to '/boot/config.txt', add these and reboot:
Code:
enable_uart=1dtoverlay=pi3-disable-btCode:
dtoverlay=sc16is750-i2c,int_pin=12,addr=0x4c,xtal=14745600dtoverlay=sc16is750-i2c,int_pin=13,addr=0x4d,xtal=14745600dtoverlay=sc16is752-i2c,int_pin=16,addr=0x4e,xtal=14745600dtoverlay=sc16is752-i2c,int_pin=17,addr=0x4f,xtal=14745600Code:
sudo chmod 666 /dev/tty*Statistics: Posted by Spectra Moon — Mon Aug 05, 2024 4:12 am — Replies 2 — Views 27