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by BeauSlim
Wed Feb 12, 2020 6:23 am
Forum: Advanced users
Topic: Setup WiFi via web browser... in 5 minutes
Replies: 4
Views: 240

Re: Setup WiFi via web browser... in 5 minutes

There doesn't seem to be any security on this at all.
by BeauSlim
Thu Feb 06, 2020 7:51 am
Forum: General discussion
Topic: Removing LEDs for dark-use Pi
Replies: 17
Views: 698

Re: Removing LEDs for dark-use Pi

LEDs could still come on during a shutdown/reboot cycle. If that matters, covering/removing them is probably the best solution.
by BeauSlim
Thu Feb 06, 2020 7:21 am
Forum: Beginners
Topic: Building a small Raspberry Pi phone
Replies: 10
Views: 417

Re: Building a small Raspberry Pi phone

But then, I grew up before pushbutton phones, let alone portable ones. I have my grandfather's 40s rotary plugged into a VOIP gateway. It won't dial (needs a refurb) but it's great for answering and the ringer scares the crap out of my cat. With regard to a Pi phone, the OP should check out the Zer...
by BeauSlim
Thu Feb 06, 2020 7:14 am
Forum: General discussion
Topic: Raspberry Pi Zero - Version 2?
Replies: 63
Views: 2106

Re: Raspberry Pi Zero - Version 2?

While it would be nice to have a second core and 1GB of RAM, I wouldn't want to trade that for less battery life. Any new "Zero" board would have to come with low power states, sleep/wake, etc. for me to be interested.
I'm looking forward to hearing how the Giant Board performs vs battery life.
by BeauSlim
Thu Jan 30, 2020 2:30 am
Forum: Beginners
Topic: Raspberry Pi control Relay with momentary switch
Replies: 27
Views: 1793

Re: Raspberry Pi control Relay with momentary switch

Where I live, using DIY relay circuits to switch mains power violates electrical codes and will void your fire insurance. I'd only use certified wifi-enabled (or bluetooth or zwave or zigbee) light switches and talk to those via the Pi.
by BeauSlim
Thu Jan 30, 2020 2:07 am
Forum: General discussion
Topic: Convert green rgb to greyscale - live
Replies: 2
Views: 167

Re: Convert green rgb to greyscale - live

There might be some hints in a KVM project using similar hardware: https://github.com/Fmstrat/diy-ipmi
by BeauSlim
Tue Jan 28, 2020 6:27 pm
Forum: Beginners
Topic: Two separate control loops
Replies: 3
Views: 174

Re: Two separate control loops

You need to learn about "threading". https://www.tutorialspoint.com/python3/ ... eading.htm is a pretty good, simple, intro. Don't forget those sleep() calls in your loops.

If you also want to deal with inputs, you'll use "interrupts" and "callbacks".
by BeauSlim
Tue Jan 28, 2020 6:10 pm
Forum: Beginners
Topic: Raspberry Pi4 Boot Partition
Replies: 26
Views: 789

Re: Raspberry Pi4 Boot Partition

People having trouble with etcher vs Win32DiskImager vs whatever may simply be having a borderline USB power problem with their SD adapter. I was having a devil of a time yesterday using etcher under Windows to burn an SD. Even though the OS and software could see the SD and the old partitions on it...
by BeauSlim
Fri Jan 24, 2020 3:59 am
Forum: Troubleshooting
Topic: FIXED: man <command> exits with code 1
Replies: 11
Views: 435

Re: man <command> exits with code 1

A web terminal that logs you in as root sounds really risky. I hope this is only on your local network or you are at least connecting over https:// I would assume that the $TERM variable isn't being set correctly. Do an 'env' or 'echo $TERM' and make sure it matches whatever the web terminal is most...
by BeauSlim
Thu Jan 23, 2020 9:29 am
Forum: General discussion
Topic: Putty Alternative For Mac User
Replies: 11
Views: 815

Re: Putty Alternative For Mac User

But is it really an SSH client? Isn't it just a (very nice) replacement for Apple Terminal? I guess that depends on how you define "SSH client" from a user perspective. On Windows, in the old days, SSH wasn't built-in, and clients like Putty had to implement their own ssh layer. On OSes that come o...
by BeauSlim
Thu Jan 23, 2020 8:01 am
Forum: Troubleshooting
Topic: FIXED: man <command> exits with code 1
Replies: 11
Views: 435

Re: man <command> exits with code 1

does

Code: Select all

zcat /usr/share/man/man1/top.1.gz | groff -man -T ascii | less
work?
by BeauSlim
Thu Jan 23, 2020 7:50 am
Forum: General discussion
Topic: iPad pro connection to Raspberry Pi4
Replies: 4
Views: 242

Re: iPad pro connection to Raspberry Pi4

Half the cables out there are charge-only. That's fine if you just want to charge. The comments on the item you linked suggest it is charge-only.
You need a proper data cable. An Apple or Belkin branded one is your best bet.
by BeauSlim
Thu Jan 23, 2020 6:06 am
Forum: General discussion
Topic: Best 5 inch display that mounts directly on the Pi 4B?
Replies: 4
Views: 189

Re: Best 5 inch display that mounts directly on the Pi 4B?

I think "best" depends on a lot of things. There are 5" full 1080p screens available that are normally sold as "field monitors" for recording video. I am sure they could be made to mount to the Pi. Some are under $150 USD. Some have speakers built-in. Not to say that the screen that donmerch posted ...
by BeauSlim
Wed Jan 22, 2020 1:35 am
Forum: General discussion
Topic: Putty Alternative For Mac User
Replies: 11
Views: 815

Re: Putty Alternative For Mac User

iTerm2. I have used a pile of different terminals on Windows, Linux and Mac and have *never* used anything even close. split panes, tmux control mode, trackpad support, bonjour discovery, scrpting, vi copy, paste history, custom everything. And it's free.
by BeauSlim
Mon Jan 20, 2020 7:11 am
Forum: General discussion
Topic: How to work around power limitations of the USB ports on the Pi4?
Replies: 9
Views: 568

Re: How to work around power limitations of the USB ports on the Pi4?

Are you seeing a low-power warning? I bet it is the USB3 ports interfering with 2.4 GHz. See https://www.intel.ca/content/www/ca/en/products/docs/io/universal-serial-bus/usb3-frequency-interference-paper.html I get the same thing with wireless keyboard dongles. Using an extension cable with the dong...
by BeauSlim
Mon Jan 13, 2020 11:50 pm
Forum: General discussion
Topic: PCIe over cable standard. I didn't know that was a thing.
Replies: 22
Views: 1051

Re: PCIe over cable standard. I didn't know that was a thing.

It's a valid thing to do; it's in the specs. I'm fairly sure Apple had a product which exposed an external PCIe lane; not sure what it was for -- something graphicsy, I think -- but it did exist. You are talking about Thunderbolt, an Intel standard. It is included in the USB4 spec. It isn't an Appl...
by BeauSlim
Sun Jan 12, 2020 10:25 pm
Forum: General discussion
Topic: Resolving Under Voltage Issue
Replies: 9
Views: 458

Re: Resolving Under Voltage Issue

The voltage from your buck converter will drop when you put a load on. I'd start by setting its output to 5.2V, which should be safe. Micro USB cables can definitely be a problem, especially with the hair-thin cables in the cheap ones. I literally had a cheap cable catch fire powering a Tinker Board...
by BeauSlim
Sun Jan 12, 2020 10:03 pm
Forum: Troubleshooting
Topic: ir-keytable not working on RPi3/Buster
Replies: 7
Views: 426

Re: ir-keytable not working on RPi3/Buster

To run ir-keytable, I think you first have to disable/stop any services that are using the socket. Maybe you have lircd running? Or some kodi component?

I'm not using it with Kodi. I have a Pi Zero W set up with irexec to send commands to various computers on my network via ssh and mqtt.
by BeauSlim
Sun Jan 12, 2020 9:47 pm
Forum: Advanced users
Topic: Raspberry Pi 4 as a NAS or personal cloud server?
Replies: 23
Views: 64245

Re: Raspberry Pi 4 as a NAS or personal cloud server?

I have the same HF2-SU3S2 enclosure, but mine is branded "mediasonic". It does not support UASP. UASP is a big deal with SSDs, but I don't see a huge difference with spinning disks. pboh, yes, you are doing "software RAID" if you are using mdadm (or zfs or btrfs) to create an array and then formatti...
by BeauSlim
Fri Jan 10, 2020 3:00 am
Forum: General discussion
Topic: PCIe over cable standard. I didn't know that was a thing.
Replies: 22
Views: 1051

Re: PCIe over cable standard. I didn't know that was a thing.

If you want to access the PCIe, there's a write up at http://mloduchowski.com/en/blog/raspberry-pi-4-b-pci-express/ Yeah, those crypto-mining risers don't follow any actual standard. They are using USB3 connectors and cables because they have enough conductors to get the job done, but they are not U...
by BeauSlim
Wed Jan 08, 2020 2:43 am
Forum: Troubleshooting
Topic: Poor SATA to USB HDD performance.
Replies: 22
Views: 928

Re: Poor SATA to USB HDD performance.

I have two guesses for you:
1. You need to change your kodi cache settings to buffer local file systems: https://kodi.wiki/view/HOW-TO:Modify_the_video_cache
2. You have a power issue. Try with the HD unplugged. Try with a powered hub. Try with a different 3A power supply.
by BeauSlim
Sat Jan 04, 2020 5:11 am
Forum: Networking and servers
Topic: Pi 4 as home wifi router?
Replies: 8
Views: 658

Re: Pi 4 as home wifi router?

It is certainly doable, but the cost of all those adapters are going to add up and I'll bet performance is going to be terrible compared even to cheap AC AP boxes from good brands like Ubiquiti, etc. with proper antennas.

If you want to tinker, just make sure you buy OpenWRT compatible gear.
by BeauSlim
Sat Jan 04, 2020 4:24 am
Forum: General discussion
Topic: new to raspberry pi need help with script at boot up
Replies: 2
Views: 135

Re: new to raspberry pi need help with script at boot up

On Raspbian Linux (which is based on Debian and is also very similar to Ubuntu), the "correct" way to do this is to create a systemd service. The quick and dirty way is to use the /etc/rc.local file.

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