Raspberry Pi Stack Exchange
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1500 questions
18
votes
5 answers

Do I need to use a ribbon cable for GPIO?

I haven't gotten my R-Pi yet, otherwise I would've just tried it, but do I need a ribbon cable to use GPIO or can I just connect a bunch of wires from the pins to a solder-less breadboard?
ohblahitsme
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18
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2 answers

Where is the HTTPD.CONF file?

I am attempting to stop people from being able to browse directories on my server. I have a fully functioning public facing LAMP on my pi but when you type in a dir name or my ip address you can see the DIR info. Here is a live…
DotNetRussell
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18
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3 answers

Fix error "Failed to start DHCP Client Daemon" after upgrade to "Bullseye" remote?

This is a non problem. DO NOT attempt "upgrade" - follow the advice to do a fresh install, NOT a kludge to "fix" the "problem". I did an upgrade to Bullseye and rebooted. I can't login with ssh (also he does not answer ping) and on screen I see…
Sybil
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18
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2 answers

Use systemd-networkd for general networking

systemd-networkd can be used to replace the existing networking system on Raspbian. How can I use it for general purposes for networking like DHCP server, name resolution, link-local addresses, mDNS and so on?
Ingo
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18
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3 answers

How can I setup a Wireless Access point or and Ad-hoc network?

I would like to connect to my PI through wireless USB dongle, how can I setup an AP or an Ad-Hoc under Arch Linux?
Mokus
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18
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3 answers

Where is Raspberry Pi "wastebasket" located in the file system?

I am trying to understand the Raspbian file system better. I opened properties on the Raspberry Pi's "Wastebasket" hoping to find out where it is located in the file system and I found trash:///. Can anyone explain this, please? I expected to find…
Susan
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18
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2 answers

Why raspberry pi 4b claims that it's processor is armv7l when in official specification it's ARM v8? How to change it?

I need to run MongoDB docker container on Raspberry Pi 4B. My Raspberry has preset (already installed) Raspbian on SD card, I didn't install OS by myself. MongoDB docker image supports arm64v8. But when I try to run container, it claims that there…
Piotrek
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17
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5 answers

Should I install NOOBS or Raspbian?

The Foundation site used to state states "Beginners should start with NOOBS – New Out Of the Box Software." Raspberry Pi Ltd. now hides NOOBS from unsuspecting novices. Only unscrupulous vendors now supply it.
Milliways
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17
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2 answers

Workaround for a wifi bridge on a Raspberry Pi with proxy arp

I want to bridge the wifi interface with the ethernet interface on a Raspberry Pi so any device on the ethernet port becomes a member of the wifi network. Usually this is done by a bridge (OSI layer 2) but on wifi you need WDS (wireless distribution…
Ingo
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17
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2 answers

Setting timezone non-interactively

What's the best approach for configuring the Time Zone non-interactively? Previously for hostname, I've used sudo raspi-config nonint do_hostname However, I am unable to locate the equivalent command for timezone?
ljtill
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17
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6 answers

Enable monitor mode in RTL8188CUS realtek wifi USB dongle

I am trying to enable monitor mode in a RTL8188CUS dongle attached to a raspberryPI. This is the error I get when I try to change the mode: pi@raspberrypi ~ $ sudo iwconfig wlan0 mode monitor Error for wireless request "Set Mode" (8B06) : SET…
zengr
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17
votes
3 answers

Powering from my PC's USB 3.0 port

The specs for my PC's motherboard don't mention any upper or lower limit for its built-in USB 3.0 ports. What is the minimum current that any (standards compliant) built-in USB 3.0 port should be able to provide? Is a USB 3.0 port suitable for…
Highly Irregular
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17
votes
1 answer

Keep HDMI off on boot

I have a battery-powered RPi Zero W that is going to be hooked into a mobile laser projector. This is an experiential setup, so I need to be able to turn it off and on between uses. My goal here is to have the RPi startup but not display anything…
normmcgarry
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17
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3 answers

Enabling SSH by default on Raspbian Stretch

I have a Raspberry Pi 1 Model A running an image of Raspbian Stretch Lite. I've noticed that when I power on my pi and allow it to start up, I can't seem to SSH into it from my Mac laptop. First, I have to hook my RPi up to a keyboard and monitor,…
smeeb
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17
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3 answers

How to Run pigpiod on boot

In order to use pigpio Module in Python (remote GPIO for Raspberry Pi ), pigpiod has to be loaded to memory on each RPi. what is the right way to to it ? during Ubuntu's boot or a part of Python's script ? since It needs sudo pigpiod- how is it…
guyd
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