Skip to content

Tags

#raspberry-pi

Posts tagged #raspberry-pi on Dynamo Geeks: 14 posts from the community, most useful first.

14 posts

Posts tagged #raspberry-pi

  1. Experience

    My grandson and I built a weather station on the terrace. He wrote the Python, I wrote the SQL, and the rain did the rest.

    Dear friends, Some of you have read my long stories about the bank. This one is shorter, and happier, and I hope you will forgive an old man for being a little proud. My grandson Vignesh is fourteen. He lives with us in Chennai while his parents work in Bengaluru, and for most of last year our relationship consisted of me asking him to put his phone down and him explaining to me, very patiently, that Python is…

    S. Ramanathan104likes35comments

  2. Article

    I deleted a comment today and I'm not sorry: mains voltage is not a beginner project

    Normally I'm the bloke laughing at his own failures on here. Not today. Today someone posted (in a comment on another thread, I've removed it and messaged them, they were very good about it) a build where a cheap relay module sitting on a breadboard switched a 2400W heater on and off. Live and neutral running through breadboard jumpers. No fuse, no earth, no enclosure, screw terminals exposed on the bench. They…

    Matt O'Brien43likes10comments

  3. Article

    Printing a Pi 5 case that actually breathes (and survives a garage in July)

    Hi all! This is the long version of a story that starts with a sad, droopy Pi case (my own (I'm the enclosure lady, I know)). In July my garage hit 38°C for a week. My Pi 5 lives out there running OctoPrint for the printers, in a case I printed in PLA two years ago. By the end of that week the lid had sagged in the middle like a hammock, and the Pi was throttling every afternoon. So I redesigned it properly, and…

    Gwen Albright10likes9comments

  4. Question

    Dad's C64 still works. What's the least painful way to get his old 5.25 floppies onto a modern PC?

    G'day retro legends. Bit out of my lane here, so be gentle. My dad still has his C64C and a 1541-II drive in the garage, and about 60 floppies from the 80s. Most are games, but a handful are things he wrote in BASIC, and one is a recipe database Mum typed in over about two years. That one I really don't want to lose. He's 74 and keeps saying "it's all on the disks", and I keep picturing the disks. What I've read so…

    Matt O'Brien11likes7comments

  7. Article

    Four Pi 5s, one k3s cluster: full build log, what went wrong, and why I'd buy a mini PC next time

    G'day legends. This took three weekends, two trips to Jaycar and one very long conversation with the wife about "what exactly is a control plane". Years ago Jeff Geerling's Pi Dramble videos put the idea in my head and it never left, so if you've not seen the original, start here: This is the full log. Every command I ran, everything that went wrong, and at the end an honest answer to "should you build one". Parts…

    Matt O'Brien114likes35comments

  8. Article

    I2C debugging with a ₹650 logic analyser: the 5 bugs I find every month

    Every month somebody at work or on WhatsApp says "the sensor is not detecting". Nine times out of ten it is one of these five. Before you change the library or the sensor, look at the bus. The tool The cheap 24 MHz 8 channel "Saleae compatible" clone, ₹650 online. With sigrok PulseView (free) it works very well: sudo apt install pulseview sigrok-firmware-fx2lafw Sample at least 4× the bus speed, I use 8 MHz for 400…

    Karthikeyan S26likes8comments

  10. Experience

    The Pi Zero that cooked itself in my letterbox (and what lives in there now)

    G'day legends. This one's a confession. Last January I built a "you've got mail" notifier. Pi Zero 2 W, a reed switch on the letterbox flap, a magnet, a little Python script that pinged Home Assistant over MQTT. Took an arvo. Worked first go. Felt very clever. Then Brisbane did Brisbane. The letterbox is black powder-coated steel, faces west, and sits in full sun from about 1pm. I had the Pi logging vcgencmd…

    Matt O'Brien16likes7comments

  11. Experience

    A retired banker's first Raspberry Pi: a weather station on my terrace in Chennai

    Dear friends, I retired two years ago after 34 years in the IT department of a public sector bank. I began with punched cards, spent most of my career with COBOL, CICS and DB2, and learned Java in my fifties because the bank said so. My grandson, who is 17, informed me last year that COBOL is "basically dead" and that I should learn Python. I informed him that COBOL processed his grandmother's pension this morning.…

    S. Ramanathan23likes10comments

  12. Article

    Pi-hole + Unbound on an old Pi 3B: my setup after 2 year, full config

    Hi all, this is my first long post here. My Pi 3B is the oldest thing in my homelab and still the most important, because when it is down the whole house have no internet and my wife know exactly who to blame :) Why Unbound and not only Pi-hole Pi-hole alone block ads, but it still forward every query to some upstream (Google, Cloudflare, or your ISP). My ISP DNS here sometimes is slow, and when I type a domain…

    Nguyễn Minh Hiếu16likes8comments

  14. Experience

    Seven dead SD cards in two years. Here is what finally fixed it

    G'day legends. Went through the shed drawer on the weekend and counted seven dead microSD cards, all out of Pis that run 24/7. The weather station, the chook house door, the Pi-hole, the garage camera. Every one died the same way: fine for months, then one morning it boots read-only or doesn't boot at all. Parts I use now (AUD, roughly): second hand 120GB SATA SSD ($20 at the tip shop / marketplace), a USB 3 to SATA…

    Matt O'Brien29likes10comments

Get the best of Dynamo Geeks weekly

One email each Monday with the most useful posts. No spam; unsubscribe in one click.