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The most recent discussions

brl-cad on a Pi4?


September 26, 2020, 12:35 am

Just for fun I tried to compile brl-cad (a constructive solid geometry modeling system) on my Pi4. To my surprise, it came close(ish) to working, I think. The configure stage ran to completion, and... Read more »

voltage from measure_volts


September 24, 2020, 8:21 am

Hi, my raspi4 is booting and running from an USB-SSD Harddrive connected with no additional power for the harddrrive. With stress i simulate some stress for CPU / IO and RAM. At the moment (fir... Read more »

How to get rid of annoying "Wi-Fi is currently blocked by rfkill"...


September 19, 2020, 2:20 pm

I have a fairly new Pi 4 which I'm setting up headless to use as a NAS. I have done 'touch .hushlogin' to get rid of most of the messages which appear at login but I still get:- Wi-Fi is curr... Read more »

(web) raspberry pi thermal printer "polaroid"


September 18, 2020, 6:44 pm

https://spectrum.ieee.org/geek-life/hands-on/retrofit-a-polaroid-camera-with-a-raspberry-pi-and-a-thermal-printer short url: https://ieee-polaroid.on-a.pizza/ Retrofit a Polaroid Camera With a ... Read more »

status lights on Pi4


September 18, 2020, 2:22 am

Just got a Pi4 with 8GB of RAM up and running. It's an impressive upgrade from a 3b+.... It looks as if the logic of the green status LED has been inverted: On the 3b+ the LED was off when idle, f... Read more »

Copying Pi 4 image to a larger SD card


September 15, 2020, 7:27 pm

My Pi 4 came with a 16 GB card and I installed and configured the Pi (from NOOBS) using this card. But I notice that there's only about 1.5 GB free - 83%. If I make an image of the card using Wi... Read more »

The Pi's Secret FM Receiver


September 15, 2020, 8:30 am

I took a deep look into the WiFi hardware on the Raspberry Pi Zero W. The chip used is the BCM43438 (which actually seems to be designed by Cypress Semiconductor), and also the same one used on the... Read more »

Pi4 won't boot *from power-off* if Atolla powered hub is plugged into any o...


September 13, 2020, 4:30 pm

I have an Atolla powered USB hub https://www.amazon.co.uk/gp/product/B07B2HJG8P/ref=ppx_yo_dt_b_asin_title_o03_s01 which I bought to power a spinning HDD that I plugged into my Pi 3B+. I'm now usi... Read more »

Booting a Pi 4 without an external USB drive when it is configured to autom...


September 11, 2020, 4:27 pm

I have added a line /dev/sda1 /home/pi/ext ntfs defaults,umask=000,x-systemd.device-timeout=30 0 0 to /etc/fstab to auto-mount a USB drive that is on /dev/sda1 This works fine. But if I acciden... Read more »

Just how much bloat can you strip out of a Pi?

  [ 2 ]
September 10, 2020, 11:47 am

Looking at my 'I only do one thing' Pi running 94 different processes, realistically how many of them do I need? And how could I get rid of them? I want to examine the pi as a reasonably real-time... Read more »

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The best rated discussions

rating
5

Raspberry Pi ZeroW as a WiFi Router

  [ 2 ]

Has anyone used a Raspberry Pi ZeroW (or another Pi, plus a USB WiFi adapter) as a WiFi router? As my existing WiFi router already connects to the internet using a USB mobile broadband modem, this... Read more »

rating
5

64 bit OS

  [ 2 3 4 5 ]

Which 64 bit OS is recommended for the Pi3, for I cannot locate such on the wiki? Perhaps NOOBS runs in the 64bit manner but in the AArch32 option? Read more »

rating
5

Controlling HD44780 as a character device?

  [ 2 ]

Hello, beeing a Linux guy for nearly two decades now, I wonder why all the suggestions for controlling a HD44780 from a Raspberry Pi will use direct GPIO (or I2C) access from userland? Despite th... Read more »

rating
5

Best way to share between two raspberry pi's


I got the setup off more then one rpi's 1. My media player runs on openELEC 2. Raspbian Wheezy (debian) my download center So that's my setup Now I want from rpi2 to write on a usb drive on rpi1.... Read more »