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by RDK
Thu May 21, 2020 7:41 am
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Re: Serial Port traffic duirng Boot-up

The Nextion support has gotten back to me and have suggested that the 5v power from the Pi is not sufficient/stable enough for the display unit. They suggest powering it from a separate 5v 2.5A wall wart. That is not a problem as I have a tester plug which will separately power the display unit. One...
by RDK
Thu May 14, 2020 3:26 pm
Forum: Beginners
Topic: OS for Pi V3+ via Pi V3?
Replies: 6
Views: 176

Re: OS for Pi V3+ via Pi V3?

That Pi was just updated and upgraded, just in case. Thanks....RDK
by RDK
Thu May 14, 2020 6:58 am
Forum: Beginners
Topic: OS for Pi V3+ via Pi V3?
Replies: 6
Views: 176

Re: OS for Pi V3+ via Pi V3?

Thanks. If I have to resort to changing Pi's, I'll return and give an update....RDK
by RDK
Thu May 14, 2020 6:03 am
Forum: Beginners
Topic: OS for Pi V3+ via Pi V3?
Replies: 6
Views: 176

OS for Pi V3+ via Pi V3?

I have a remote Pi 3 B (Pi 3 Model B Rev 1.2, Buster) monitoring some equipment at a remote location which is not accessible to me right now. There was a lightning strike in that area which caused the Pi to need to be restarted (which it did ok) but the interface to the equipment did not return to n...
by RDK
Mon May 04, 2020 7:03 am
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Re: Serial Port traffic duirng Boot-up

Trevor....Thanks for the clarification and the link. Right now the Nextion display is working correctly with "Pi a" after the last cold boot came up normally. Historically it runs for several days before becoming unresponsive (ie it stops listening to the serial traffic). When that happens I will re...
by RDK
Sun May 03, 2020 6:00 pm
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Re: Serial Port traffic duirng Boot-up

Trevor....OK, I'll admit it I'm new to all of this. The USB-to-Serial adapter is plugged into the Pi b and I did not think I should also have it powered from "Pi a" . Should it also be connected to the 3.3V and ground on "Pi a"?

Hippy...I will look into your ideas tomorrow.....RDK
by RDK
Sun May 03, 2020 8:18 am
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Re: Serial Port traffic duirng Boot-up

I have putty on another Pi (AKA Pi b ) so I tried the following experiment: 1. I attached the above USB Serial adapter to Pi b and found it in the /dev/tty as ttyUSB0 2. I ran raspi-config on Pi b and enabled both serial options 3. From the " Pi a " which was controlling the Nextion (that display no...
by RDK
Sun May 03, 2020 4:50 am
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Re: Serial Port traffic duirng Boot-up

Thanks again. Excuse me for being a bit of a novice on this but, that is just what I am!!! I have another Pi on which I can install the SIGROT software. I assume I have to modify the raspi-config setting on that Pi so it can read the serial traffic from the USB-serial device? Life is an experiment a...
by RDK
Sat May 02, 2020 3:15 pm
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Re: Serial Port traffic duirng Boot-up

Thanks for the idea. I have this serial to USB adapter (DSD TECH USB to TTL Serial Adapter with FTDI FT232RL Chip) which I think is what you were suggesting. The problem is that I'm not sure what/how to use it to debug this situation. Do I need another Pi to listen to this one during boot-up or is t...
by RDK
Sat May 02, 2020 12:15 pm
Forum: Advanced users
Topic: Serial Port traffic duirng Boot-up
Replies: 12
Views: 530

Serial Port traffic duirng Boot-up

A week or so I posted a request for members that are using a Nextion HMI display with a Pi (https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=272166). I got no responses from that posting. I have furthered my experiments. The Nextion unit is a display unit which receives its instructions via a...
by RDK
Tue Apr 28, 2020 2:10 pm
Forum: Beginners
Topic: Summary list for the current RASPI-Config settings
Replies: 8
Views: 232

Re: Summary list for the current RASPI-Config settings

rpdom…. Not much. Best I can do would be a smile and a thank you.

jamesh….Thanks, yes that give me part of what I wanted...

No worries guys, I live with it as it is....RDK
by RDK
Tue Apr 28, 2020 11:45 am
Forum: Beginners
Topic: Summary list for the current RASPI-Config settings
Replies: 8
Views: 232

Re: Summary list for the current RASPI-Config settings

Thanks again. I was hoping that someone else had already done the work for me....
by RDK
Tue Apr 28, 2020 11:09 am
Forum: Beginners
Topic: Summary list for the current RASPI-Config settings
Replies: 8
Views: 232

Re: Summary list for the current RASPI-Config settings

Dougie...Thanks, but I know what the options are. What I want is a listing/table of the current settings for those options. For example, Serial Port, time zone, over-clocking, etc....RDK
by RDK
Tue Apr 28, 2020 10:04 am
Forum: Beginners
Topic: Summary list for the current RASPI-Config settings
Replies: 8
Views: 232

Summary list for the current RASPI-Config settings

Is there a way to simply list ALL of the setting for the various categories in the RASPI-Config application?...RDK
by RDK
Sun Apr 26, 2020 5:52 am
Forum: Advanced users
Topic: Nextion P Series with Buster
Replies: 0
Views: 105

Nextion P Series with Buster

I'm looking for folks who are using the Nextion HMI displays. I'm running Buster on a Raspberry Pi B which I'm using to control a Nextion 7" HMI (P series) display. For the most part it is working but... 1. when I do a cold boot up, the display turns on when it get power from the Pi's 5v GPIO pin, t...
by RDK
Mon Mar 30, 2020 7:04 am
Forum: Beginners
Topic: Log errors with now install Buster on PiB+
Replies: 4
Views: 152

Re: Log errors with now install Buster on PiB+

The usb stick is "permanently" attached to the Pi. It is a newer 16GB stick. I have this line in the /etc/fstab /dev/sda1 /mnt/usbdrive vfat defaults,dmask=000,fmask=111 0 3 . autofs is installed I boot to the command line. lsusb Bus 001 Device 005: ID 0781:5575 SanDisk Corp. Cruzer Glide Bus 001 De...
by RDK
Sun Mar 29, 2020 2:58 pm
Forum: Beginners
Topic: Log errors with now install Buster on PiB+
Replies: 4
Views: 152

Re: Log errors with now install Buster on PiB+

OK, thanks. That addresses one of the issues. Any ideas about the rest?....RDK
by RDK
Sun Mar 29, 2020 7:42 am
Forum: Beginners
Topic: Log errors with now install Buster on PiB+
Replies: 4
Views: 152

Log errors with now install Buster on PiB+

I have installed Buster on an older Raspberry Pi B+. It seems to be working ok, but when I look at the log (cat /var/log/syslog |grep failed) I see these "failed" messages: Mar 29 09:21:15 PiBBuster automount[418]: mount_autofs_indirect: failed to read map for /media/ Mar 29 09:21:15 PiBBuster autom...
by RDK
Sun Feb 23, 2020 3:11 pm
Forum: Troubleshooting
Topic: Mail on Buster
Replies: 25
Views: 14194

Re: Mail on Buster

PCMANBOB.....Thanks, I'll stop looking and worrying about it....RDK
by RDK
Sun Feb 23, 2020 8:19 am
Forum: Troubleshooting
Topic: Mail on Buster
Replies: 25
Views: 14194

Re: Mail on Buster

For those that arrive here in trying to setup MSMTP for e-mail on Buster. I have it running on several Buster Pi's (B+, 3B+ and 4B) after following much of the information in this thread and some other research. Here are my config files: /etc/msmtprc defaults auth on tls on # following is different ...
by RDK
Mon Jan 27, 2020 11:44 pm
Forum: Beginners
Topic: No wifi connection with Raspbian-Buster on PiV4
Replies: 7
Views: 420

Re: No wifi connection with Raspbian-Buster on PiV4

Correcting my spelling did t he trick. Thanks....RDK
by RDK
Mon Jan 27, 2020 10:47 pm
Forum: Beginners
Topic: No wifi connection with Raspbian-Buster on PiV4
Replies: 7
Views: 420

Re: No wifi connection with Raspbian-Buster on PiV4

Good eyes!! TYPO in file. I will fix it and try again. Thanks....RDK

Regarding my last post (different Pi V4) about
Could not communicate with wpa_supplicant
. I did an apt update and upgrade and rebooted several times and now noticed that wifi is connecting. Go figure....RDK
by RDK
Mon Jan 27, 2020 10:08 pm
Forum: Beginners
Topic: No wifi connection with Raspbian-Buster on PiV4
Replies: 7
Views: 420

Re: No wifi connection with Raspbian-Buster on PiV4

I'm not having a lot of luck with Buster on PiV4B and WiFi!!! I just tried to connect to a "good" WPA secure router with my Pi V4B Buster configuration. Running raspi-config for WiFi I get the following error message: Could not communicate with wpa_supplicant and then to exit raspi-config I also get...
by RDK
Wed Jan 22, 2020 11:57 pm
Forum: Beginners
Topic: No wifi connection with Raspbian-Buster on PiV4
Replies: 7
Views: 420

Re: No wifi connection with Raspbian-Buster on PiV4

Thanks Dougie, but it still does not connect. Here is my wpa_supplicant.conf, which is what was recommended in your link. ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 country=US network={ ssid="Rosetown" key_mgmt=NONE wep_key0=911A0F4BC6 web_tx_keyidx=0 } At the risk of re...
by RDK
Wed Jan 22, 2020 2:21 pm
Forum: Beginners
Topic: No wifi connection with Raspbian-Buster on PiV4
Replies: 7
Views: 420

No wifi connection with Raspbian-Buster on PiV4

Can I assume that a Pi V4 with BUSTER (Sept 2019) will not connect to a router running WEP "security"? I just checked with an older install of Buster (fully undated) on a PiV3 and WEP does work for that unit. Does that make a difference or are there extra steps for WEP on a PiV4? The wpa_supplicant....

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