Questions tagged [serial-console]
The serial console is a text entry and display device for system administration connected through a serial link.
104 questions
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64 views
U-Boot for Raspberry pi 4B - nothing comes up on the display
I am trying to get U-boot on raspberry pi 4B, after plug in there is no output on TeraTerm or Putty. The yellow LED is blinks normally, but still nothing comes up on the screen. I have already made ...
2 votes
1 answer
2k views
When is the 'disable-bt' dtoverlay necessary?
I have a Pi 3B+. There are a number of resources out there that suggest it is necessary to enable the disable-bt overlay in order to make use of the serial UART on GPIO 14 & 15. E.g., this ...
- 685
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1 answer
317 views
How to disable sysrq on UART
I am trying to talk to a device over serial (ttyAMA0 or serial0) and it works, but sometimes I get the following TX from my rpi4, which crashes the device I talk to: [22763.820857] sysrq: HELP : ...
- 11
0 votes
1 answer
176 views
Serial connection cannot send login information
I'm connected through a serial port to my Raspberry Pi 4 as: PC <--> USB adapter <--> serial port <--> RPI I enabled the shell login through the serial port with raspi-config and I ...
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1 answer
85 views
Is there any automatic fallback from PPP to regular serial console if all else fails?
I have a Raspberry Pi 4B (8gb RAM) connected to my laptop via TTL-to-USB (UART) cable operating at 115200 baud. The raspi runs Ubuntu 23.04 and the laptop runs Ubuntu 22.10 LTS. I have a slight ...
1 vote
1 answer
122 views
Serial cable TTY behaves strangely in htop and simple graphics with lots of fill color
Context: I'm using this serial TTY cable to connect my Raspberry Pi 4B to my main laptop. Both run fully updated versions of Ubuntu 22.10, except the laptop runs the x64 version of course. I got the ...
0 votes
2 answers
660 views
Unable to connect to raspberry pi 3b over minicom
I want to connect to my raspberry pi 3 model B V 1.2 to minicom using serial cable. I have attached serial cables to correct pins like this. image of my setup I have installed raspbian from the ...
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2 votes
1 answer
2k views
Can't use Bluetooth COM ports from Windows 10
I have a Raspberry PI 3 model B, with built-in Bluetooth hardware, and I'm running the latest Debian distro on it (Linux raspberry 5.15.61-v7+). I successfully paired and connected from Raspberry (...
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1 vote
1 answer
2k views
Raspberry Pi Pico doesn't create tty file
I've been using Raspberry Pi Pico for some time already and I'm using minicom for serial communication. But one day Pico stopped generating tty/ATCM0 when connected to USB port. Before this everything ...
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1 vote
2 answers
2k views
UART (not the board itself) stopped working after connecting 5V to GND, can it be recovered?
I accidentally connected UART wires one row lower than it should be (see image): then I unplugged them shortly after that and then connected correctly, but serial console doesn't work anymore. USB ...
- 211
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2 answers
695 views
(Pico) USB serial connection having noise?
I'm having some trouble trying to make a simple USB IO demo to test the Pico. Apparently, the USB serial connection seems to be noisy, and always puts something into the UART buffer even though I am ...
1 vote
1 answer
3k views
Accessing Raspberry Pi Pico REPL from Android Serial USB Terminal App with main.py present
I discovered that I can plug a Raspberry Pi Pico into my Android phone and use the app 'Serial USB Terminal' as a serial monitor. However, if the Pico has a main.py script uploaded to it, then it ...
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70 views
How Install Ubuntu 21.04 (Desktop) on Raspberry Pi 4 using Serial Console? [duplicate]
Hello how can I install ubuntu desktop 21.04 on raspberry pi 4 using serial console? I want to use the Raspberry Pi 4 UART pins to communicate using TTL to USB convert device to my windows 10 OS using ...
- 1
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0 answers
526 views
Serial console to Pi 4b shows no output
I am trying to connect to the Pi 4b 8Gb via serial console, however, although I can connect to the serial adapter itself, I can't seem to get no output at all from it, nor using default raspbian ...
- 1
0 votes
2 answers
4k views
How to enable console via uart1 in yocto for raspberrypi3 image
I'm using Yocto-dunfell for getting custom my Raspberrypi3 image. Here I want to enable serial-console via uart1. for that I have given change in my files- local.conf: ENABLE_UART = "1" ...
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