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Adam K0FFY

@k0ffy

Science, Technology, Retro Computing, Ham Radio—Packet, SOTA, AMSAT radio satellites—and Coffee. He/Him. Views My Own / Those of Omnidimensional Super Beings. Spacial QTH: Twin Cities, MN

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09.11.2024
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Latest posts by Adam K0FFY @k0ffy

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I just bought the only physical encyclopedia still in print, and I regret nothing The still-updated World Book Encyclopedia is my antidote to the information apocalypse.

arstechnica.com/culture/2023...

07.03.2026 14:22 👍 1 🔁 0 💬 0 📌 0
World Book Encyclopedia set, 100 year anniversary commemorative 2017 edition.

World Book Encyclopedia set, 100 year anniversary commemorative 2017 edition.

Got myself a pre-AI knowledge reserve, just to be safe. 😁 Inspired by @benjedwards.com

07.03.2026 14:21 👍 3 🔁 0 💬 1 📌 0
Mona Lisa created with a playground image panel.

Mona Lisa created with a playground image panel.

The kid that created this Mona Lisa at the neighborhood playground has a bright future as an amazing artist!

21.02.2026 22:20 👍 4 🔁 0 💬 0 📌 0
8 bit screenshot from the original Legend of Zelda. An old man stands between two burning torches inside a dark cave. On the screen in white block letters are the words, It is dangerous to go alone. Take this. Link, in a green tunic and cap, faces the old man as a wooden sword is offered to him. The cave walls are red and patterned in a repeating pixel design.

8 bit screenshot from the original Legend of Zelda. An old man stands between two burning torches inside a dark cave. On the screen in white block letters are the words, It is dangerous to go alone. Take this. Link, in a green tunic and cap, faces the old man as a wooden sword is offered to him. The cave walls are red and patterned in a repeating pixel design.

The Legend of Zelda is 40 years old today. It came out in 1986 for the NES, and when it showed up at friend’s place, you knew it. We all gathered around the TV, someone had a notebook for secrets and maps, and afternoons turned into an adventures.

www.retroist.com/p/retroist-l...

21.02.2026 15:26 👍 48 🔁 12 💬 2 📌 2

This looks AMAZING!!

07.02.2026 01:47 👍 1 🔁 0 💬 0 📌 0

Volunteer with something you love. Build real connections and help people. Don’t wait for “some day”. Do it today.

21.01.2026 20:26 👍 2 🔁 0 💬 0 📌 0
School Library

School Library

Last spring I was laid off from my job. Went all-in as a stay-at-home dad and also started volunteering at my daughter’s school. I’m back at work but still volunteering. I decided that if I won the lottery there’s still nothing else I’d rather do. And the amazing part is that I can do it now anyway!

21.01.2026 20:25 👍 8 🔁 0 💬 1 📌 0
Amiga 500 Mainboard

Amiga 500 Mainboard

Every once in a while I wake up at 3 AM thinking how there might be an old battery leaking and destroying my Amiga 500 mainboard. I finally got around to cracking it open today and was happy to see no battery at all! 🌙🥰💾❤️

14.01.2026 03:18 👍 5 🔁 0 💬 0 📌 0
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Quintessentially the 1980s: This Devo Song playing for the intro of the 1988 Neuromancer game for the Commodore 64. “Some Things Never Change” sounds great on the hugely versatile C64 SID chip, especially realizing this chip predates FM synthesis. This is high art! #Commodore64 #Neuromancer

12.01.2026 15:24 👍 12 🔁 4 💬 0 📌 0

I’ve got a lot of “6502 illegal opcodes” in my list. I’m hosed.

24.12.2025 00:04 👍 4 🔁 0 💬 0 📌 0
Post image Post image Post image Post image

On Thursday, I stayed behind at my parents’ house while my wife and kids headed home. The plan was to replace the radiator in my parents’ 2015 Sonic and drive it home (for my teenager to have) on Friday before the snowstorm hit. The car is finally fixed but I’m still here. ☃️❄️😁

30.11.2025 04:11 👍 2 🔁 0 💬 0 📌 0
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The sound when you get a program fully working on an 8-bit computer and you really don’t want to lose it!! #c64 #dotmatrix #hardcopy

19.11.2025 14:43 👍 14 🔁 1 💬 2 📌 0
I assure you, the door is latched.

I assure you, the door is latched.

“Dad’s hot wiring the dishwasher again!!”

06.11.2025 02:37 👍 1 🔁 0 💬 0 📌 0
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I have one of these! It doesn’t stick on the breadbin like that without an adhesive pad (dried up decades ago). If you hold this in your hand, the joystick is surprisingly smooth and responsive, like the analog stick on a modern controller. The button position sucks though—too close to the stick.

30.10.2025 14:10 👍 0 🔁 0 💬 0 📌 0
Raspberry Pi Cluster

Raspberry Pi Cluster

Serial HAT for Raspberry Pi

Serial HAT for Raspberry Pi

Oh man, I could have bolted a DIN rail to my butcher block desk! I just have my cluster sitting on the desk top. I built this during the summer, and it has been a great home tiny lab. I just got this serial communications HAT to play with next.

08.09.2025 13:46 👍 2 🔁 0 💬 1 📌 0
Hornets’ nest hanging in a tree.

Hornets’ nest hanging in a tree.

The hornets DID return this summer! My daughter found their nest today in a new tree. I’ve been walking under this branch all summer, oblivious to the fact that a hornets’ nest was only 18” above my head! I need to figure out how to preserve the nest this winter. Anyone know how?

30.08.2025 18:21 👍 3 🔁 0 💬 0 📌 0
Family at Jordan Pond in Acadia National Park

Family at Jordan Pond in Acadia National Park

Biking in Acadia National Park (2025)

Biking in Acadia National Park (2025)

Biking in Acadia National Park (2006)

Biking in Acadia National Park (2006)

Biking in Acadia National Park, 19 years apart.

07.08.2025 00:46 👍 9 🔁 1 💬 0 📌 0
Kids fishing in canoe at sunset.

Kids fishing in canoe at sunset.

Three summers in, and the return on investment from this secondhand canoe is sky high! 😁 🎣 🛶 ☀️

02.07.2025 02:15 👍 4 🔁 0 💬 0 📌 0
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My teenager is on day 7 of 11 of his backpacking trek in the Sangre de Cristo mountains in New Mexico with his Scout troop at Philmont. I got a single “all is well” message with this photo on Wednesday. It looks like a fantastic adventure and I can’t wait to hear the stories! 😊

27.06.2025 15:27 👍 0 🔁 0 💬 0 📌 0

A complete mystery that is impossible to ever solve. 😊

18.06.2025 00:01 👍 1 🔁 0 💬 0 📌 0
Homemade banner reading: “Rob Sand for Governor”

Homemade banner reading: “Rob Sand for Governor”

Dot matrix printer in action making a banner.

Dot matrix printer in action making a banner.

Rob, I was very excited to see your announcement this week I’ve got the dot matrix printer on standby if you need any more banners. 😁

14.05.2025 17:44 👍 2 🔁 0 💬 0 📌 0
While earlier versions of Raspberry Pi were not camera shy, Upton said that the issue relates to a photoelectric effect on the device's U16 processor core power regulator. The bare silicon die is hit by the high-intensity light and the semiconductor material emits electrons, causing the device to power down.
"Silicon junctions (the types that are responsible for making diodes and transistors and other such electronic miracles function) can be 'upset' by this photoelectric effect if it is large enough (i.e. if enough light of the right energy [i.e. colour] is fired at them),"

While earlier versions of Raspberry Pi were not camera shy, Upton said that the issue relates to a photoelectric effect on the device's U16 processor core power regulator. The bare silicon die is hit by the high-intensity light and the semiconductor material emits electrons, causing the device to power down. "Silicon junctions (the types that are responsible for making diodes and transistors and other such electronic miracles function) can be 'upset' by this photoelectric effect if it is large enough (i.e. if enough light of the right energy [i.e. colour] is fired at them),"

This is fascinating!

10.05.2025 19:40 👍 1 🔁 0 💬 0 📌 0
Commander LaForge, speaking via meme, says that if there’s a bustle in your hedgerow, don’t be alarmed.

Commander LaForge, speaking via meme, says that if there’s a bustle in your hedgerow, don’t be alarmed.

02.05.2025 18:02 👍 114 🔁 21 💬 3 📌 0

Muscle. Grit. Week 2 of getting back to my immortality plan. 😊

30.04.2025 12:42 👍 0 🔁 0 💬 1 📌 0

That looks great for a first light shot!

23.04.2025 01:32 👍 1 🔁 0 💬 0 📌 0

Pour one out today.

16.04.2025 13:23 👍 1 🔁 0 💬 0 📌 0

But you’re not complaining, right? 😁

16.04.2025 13:18 👍 1 🔁 0 💬 1 📌 0
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Let us know how the scope works out! 25 years ago, I used to dream about this Astroscan tabletop telescope. Couldn’t afford one at the time. Every once in a while I go on a trip where I’d love to have a travel telescope. Was on top of Haleakalā recently and I’d love to take a scope there next time.

15.04.2025 12:50 👍 1 🔁 0 💬 1 📌 0

Hoping for clear skies during your trip!

15.04.2025 01:27 👍 1 🔁 0 💬 1 📌 0
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Here’s a great idea from a favorite book I used to read to my kids. 😊

14.04.2025 02:49 👍 1 🔁 0 💬 0 📌 0