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by b99
Mon Feb 01, 2021 6:09 pm
Forum: Beginners
Topic: GPIO 3 wake function, remote access with ESP8266
Replies: 1
Views: 133

Re: GPIO 3 wake function, remote access with ESP8266

So while waiting for an answer I did some experimenting and found that while swiching from INPUT to OUTPUT, LOW did not work. switching from INPUT_PULLUP to OUTPUT, LOW seems to. My setup is as follows. GPIO 3 on the Pi is set to INPUT_PULLUP. GPIO D5 on the D1 Mini is set to INPUT_PULLUP. A GET req...
by b99
Mon Feb 01, 2021 1:49 pm
Forum: Beginners
Topic: Possible to access and transfer Roms over local network from one Ras Pi 3B running Raspbian desktop to Ras Pi 4 Retropie
Replies: 1
Views: 102

Re: Possible to access and transfer Roms over local network from one Ras Pi 3B running Raspbian desktop to Ras Pi 4 Retr

You can copy files over SSH using the scp command. Syntax is as follows if executing from destination

$ scp <user@remote-host:path/to/source> <path/to/destitation/folder>

https://linuxize.com/post/how-to-use-sc ... fer-files/
by b99
Sun Jan 31, 2021 8:35 pm
Forum: Beginners
Topic: GPIO 3 wake function, remote access with ESP8266
Replies: 1
Views: 133

GPIO 3 wake function, remote access with ESP8266

I have a number of Pis running headless and have implemented power buttons for them using this tutorial. The shutdown functionality is done like this: #!/usr/bin/env python import RPi.GPIO as GPIO import subprocess GPIO.setmode(GPIO.BCM) GPIO.setup(3, GPIO.IN, pull_up_down=GPIO.PUD_UP) GPIO.wait_for...
by b99
Tue May 14, 2019 11:40 am
Forum: Beginners
Topic: Boot order: change so USB is tried first
Replies: 12
Views: 2009

Re: Boot order: change so USB is tried first

With regards to auto mounting the SD card, have a look at this... http://www.embeddedpi.com/documentation/sd-card-interface/mypi-industrial-raspberry-pi-configuring-sd-card Since this is all only for a rescue scenario, I think just having the script on the USB mount the SD card is simpler. Thanks f...
by b99
Sun May 12, 2019 4:19 pm
Forum: Beginners
Topic: Boot order: change so USB is tried first
Replies: 12
Views: 2009

Re: Boot order: change so USB is tried first

Thanks! That's very creative. Then I'd need to remember to fix bootcode.bin before the reboot. I'd prefer a neater option if anyone is aware of one. Well the USB stick you use to recover the situation could just have a startup script that renames the bootcode.bin file on the SD card back to it's or...
by b99
Fri May 10, 2019 10:10 am
Forum: Beginners
Topic: Boot order: change so USB is tried first
Replies: 12
Views: 2009

Re: Boot order: change so USB is tried first

Thanks all for the replies. I am going to try and implement BespokeTechs solution.
by b99
Thu May 09, 2019 11:36 am
Forum: Beginners
Topic: Boot order: change so USB is tried first
Replies: 12
Views: 2009

Re: Boot order: change so USB is tried first

Thanks! That's very creative. Then I'd need to remember to fix bootcode.bin before the reboot. I'd prefer a neater option if anyone is aware of one.
by b99
Thu May 09, 2019 10:45 am
Forum: Beginners
Topic: Boot order: change so USB is tried first
Replies: 12
Views: 2009

Boot order: change so USB is tried first

I have a Pi 3B + running headless inside a case which leaves only the power, Ethernet, and 2 USB ports accessible. When a mistake in dhcpcd.conf cut off ssh access, I had to disassemble to case to remove the SD card to correct. What I'd like to do is set it up so a similar situation in the future co...
by b99
Thu Jan 17, 2019 1:10 pm
Forum: Ubuntu
Topic: Ubuntu 18 Server on Raspberry Pi 3B+
Replies: 8
Views: 39319

Re: Ubuntu 18 Server on Raspberry Pi 3B+

@z3n Thank you very much! Following your detailed instructions I have successfully installed Ubuntu 18 Server on a Pi 3B+. I have an issue which I don't think is normal. I can not simultaneously ssh in to the Pi with the LAN and WLAN. Which ever is loaded first grabs the ssh and in order to use the ...
by b99
Fri Jun 15, 2018 11:56 am
Forum: Troubleshooting
Topic: VNC suddenly not working.
Replies: 5
Views: 9768

Re: VNC suddenly not working.

I saw that thread and it does seem similar, though they are discussing Jessie and I'm running Stretch, not that I'm certain that makes a difference. Also, I'm running headless, they are not. I tried sudo apt-get install xserver-xorg-legacy from the last post in that thread and it did not work, so I ...
by b99
Thu Jun 14, 2018 12:02 pm
Forum: Troubleshooting
Topic: VNC suddenly not working.
Replies: 5
Views: 9768

Re: VNC suddenly not working.

Bump.

I'm considering restarting from scratch.
by b99
Mon Jun 11, 2018 7:15 pm
Forum: Troubleshooting
Topic: VNC suddenly not working.
Replies: 5
Views: 9768

Re: VNC suddenly not working.

Is your Pi set to boot to desktop? This is normally required for VNC to work, although you can get around this by enabling experimental direct capture mode, see here for how to do this from the command line: https://support.realvnc.com/knowledgebase/article/view/541/0/how-do-i-enable-the-experiment...
by b99
Mon Jun 11, 2018 11:15 am
Forum: Troubleshooting
Topic: VNC suddenly not working.
Replies: 5
Views: 9768

VNC suddenly not working.

This is my first post and let me begin by thanking the creators of Pi for their awesome product and to all the members of the community for creating the support environment. I am a proud new owner of a Raspberry Pi 3 B+ running the latest version of Raspbian Stretch. I'm set it up and am running it ...

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