Raspberry Pi Forums

virgosystems

I connected a 4b to power out on the touchscreen pcb. It powers when I power the screen, but it shows the low power (lightning bolt) symbol. Is there an input voltage and current that will fully power it, optimally with all four usb loaded? I guess I have enough parts to fabricate any supply but obv...

virgosystems

I'm trying to write a thread to encrypt/decrypt files with gpg at the shell prompt using a keyfile, preferably anonymously (no email/name attached). What is the correct command, or am I misunderstanding something?

Thanks so much

Joe

virgosystems

I installed hostapd and launched with hostpad -d /etc/hostapd/hostapd.conf, using hostapd from https://www.raspberrypi.com/documentation/computers/configuration.html#setting-up-a-routed-wireless-access-point but no new SSID shows up. Any hints? I can post pictures output of hostapd but I don't have ...

virgosystems

Obviously I can put a DMM in series, but what if I want a log over time?

Thanks so much

Joe

virgosystems

I don't know it RPi foundation is directly responsible for this, but I just picked up a new unit from Micro Center and it doesn't ship in an anti static bag?

Just a lightweight cardboard box.

virgosystems

I got a sungwoo Foldable Silicone Keyboard ( https://www.amazon.com/Sungwoo-Foldable-Silicone-Keyboard-Waterproof/dp/B0179N39KS/ref=sr_1_5?crid=WWP7YKOOU2JA&keywords=sungwoo+silicone+keyboard&qid=1649961990&sprefix=sungwoo+silicon+keyboard%2Caps%2C74&sr=8-5 ) a while back, and the 64...

virgosystems

Some sites are reporting ship dates for new units as far out as December. I'm in the market for at least one 3b+, probably 2-3 if the price is right. Maybe a 4 too. May consider paying shipping from other parts of the US but I'd prefer to just meet in NYC and pick it up in person. Thanks so much Joe

virgosystems

Yes, it's quite nice. I was hoping for a non interactive script but it's an excellent start.

virgosystems

Barring that, an Ansible playbook?

Thanks so much

Joe

virgosystems

I'm aware pi-gen is the official tool for building images, but does anyone have experience with any of the others? There seem to be quite a few available.

Specifically, I'd like to try to add a custom kernel

Thanks so much

Joe

virgosystems

I would like to try https://github.com/iovisor/bcc . However running /bcc/examples/networking/python3 ./net_monitor.py wlan0 returns modprobe: FATAL: Module kheaders not found in directory /lib/modules/5.10.63-v7+ Unable to find kernel headers. Try rebuilding kernel with CONFIG_IKHEADERS=m (module) ...

virgosystems

Using Windows and Bonjour, I was able to ssh in via putty after enabling ssh via raspi config. However, since installing nginx and rebooting win10 I get error "Host does not exist". Using the IP provided by windows ipconfig -all does the same thing.

Many thanks in advance for any help

Joe

virgosystems

For reference, I have some experience with *nix overall, both WSL and linux derivatives. What is the preferred strategy for backup overall here? I am currently learning duplicity, which I know has at least one popular alternative (duplicati) and a new system called kopia. From what I understand both...

virgosystems

I don't remember what I did exactly, but at some point last week hostname -I was returning multiple addresses. Clearly the system couldn't have more than one IP? Unless it was assigning a different IP to every interface?

virgosystems

cincfleet wrote: ↑
Sat Nov 27, 2021 7:22 pm
apt_get (underscore). apt-get (hyphen) sorry just to clarify my previous comment

Typo. Corrected.

virgosystems

I followed instructions here

viewtopic.php?t=169212

to force request password for sudo. It works as expected, _unless_ doing

Code: Select all

sudo apt-get foo

. Did I do something wrong?

Thanks so much

Joe

ETA: More accurately,

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sudo apt-get install foo

virgosystems

I completely forgot about a USB HDMI capture I bought specifically for situations like this. So this issue is academic atm and I may circle back to it in a couple days. Or I may not. Thanks so much for the info anyhow.

virgosystems

Yeah I was running fully updated bullseye. (I hope) I will test the proposed solution in a few hours, I have some other things to take care of.

virgosystems

I have a (fairly old) touchscreen that I can connect with a ribbon cable to a Pi 3 b+ and a Pi 4 b. The Pi 4 loads the gui without any problem but the pi 3 displays some POST information and then stops outputting anything to the display altogether. This is the rear panel of the display pi_display.GI...

virgosystems

It's been 7-8 years since it was updated

Thanks

Joe

virgosystems

I'm designing a case and I want to choose a USB hub. Is there a practical limit past which attached usb devices begin to swamp the cpu/north bridge? 8 devices? 16? Assume most are storage, but maybe a couple wifi adapters

Thanks so much

Joe

virgosystems

I'm developing a (semi) commercial project which is to include some multichannel audio output. I've seen quite a few hats/usb interfaces that offer this functionality. However, it seems like quite a few GPIO pins offer PWM and there is a well known simple circuit to convert pwm to analog signal. So,...

virgosystems

Code: Select all

sudo useradd foo

is accepted without error.

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sudo passwd foo

also behaves as expected, but

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su foo

does not accept the new password!

Many thanks in advance for any help

Joe

virgosystems

On Windows, ipconfig -all returns IPv4 Address. . . . . . . . . . . : 192.168.56.1 for the wired nic connected to the Pi and net share returns Share name Resource Remark ------------------------------------------------------------------------------- IPC$ Remote IPC C$ C:\ Default share E$ E:\ Defaul...

Search found 24 matches

Is there a power input for the screen that will support a 4b connected to power out?

gpg cli with file key

No new SSID after launching hostapd with hostpad -d

Is there some way to get current supplied to USB ports from CLI?

4b 2gb retail packaging

USB keyboard confusion

Anyone with a few used 3b+ in the US NYC area?

Re: Anyone know of a shell script to install LEMP (Webserver, DB, etc)?

Anyone know of a shell script to install LEMP (Webserver, DB, etc)?

Techniques for building images

BCC (BPF Compiler Collection)

ssh pi@raspberrypi fails with "host does not exist"

Backup strategy

What does it mean when hostname -I returns multiple values?

Re: Requiring root password instructions don't work as expected

Requiring root password instructions don't work as expected

Re: Touchscreen oddity

Re: Touchscreen oddity

Touchscreen oddity

Is the stuff in the "tools" folder still usable

Is there a practical upper limit to number of concurrent usb devices?

Multichannel audio strategy

Password oddity

samba client oddity