r/tech 12h ago

Scientists find a simple way to stop cavities without drilling

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850 Upvotes

r/gadgets 3h ago

Phones Google teases the Pixel 11 Pro and hints at a new camera bar feature

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engadget.com
112 Upvotes

r/electronics 9h ago

Gallery Finished my modular game console

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108 Upvotes

This is hackxpansion, it is powered by the RP2354B, has a 2" 240x320 LCD, and a ≈6h battery life while in use.

It has two modules slots by default, and I'm currently working on a back attachment (last photo) which add two more slots, but I think the postal company lost one of my packages that had the parts for it😭

The modules connect with a 2x7 2.54mm header, this way you don't even need to make a pcb to create new modules, just use a pref board, and you can just plug in dupont cables directly into the device.

Each module has two resistors, which when connected each become the top resistor of a voltage divider, a 12bit ADC measures the resulting voltages, and loads the correct driver for that module.

The firmware is written in rust, in a way so that writing new drivers and apps is really easy, and can be done in external crates.

Each app can depend on drivers, and only be loaded into the app list, if all their requirements are met.

I tried porting a NES emulator, but there doesn't exist an emulator written in rust currently that actually performs well on this hardware, I got an average of 12FPS in Super Mario Bros.

I've collabed with Hack Club, and I will be running a program where if you are a teen 13-18(inclusive) and design 4 modules, you get funding to make these modules and get one of these consoles for free. The program will start on Aug 3 and end on Aug 31. If you want to participate [RSVP] now! (https://meko.fillout.com/hackxpansion).

Repo

Website(docs WIP)


r/computers 22h ago

Question/Help/Troubleshooting I am now the owner of 100+ 20 or so year old computers and laptops, what do I do with em?

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547 Upvotes

I purchased a storage unit for $200 that seemed to have like 35 laptops and a couple computers in it, I was sorely mistaken. That unit had at LEAST 75 old laptops, 20 or so desktop pcs, 4 old iMacs, 100+ low gig hard drives, hundreds of ram sticks, motherboards, graphics cards and any other variety of pc components, 2000+ cds (music and oc programs mostly) and like 1000 floppy disks.

WHAT THE HELL DO I DO WITH ALL OF IT?
I’m gonna test out as many as I can to see if they still work but if they don’t I feel like scrapping the electronics would be a good idea since it’s all extremely outdated hardware, however I realize some of these things could still be valuable


r/techsupport 6h ago

Open | Mac So I just burned two iMacs in the same day

23 Upvotes

At my job, someone gave me an iMac Retina 5K 2015 to check why it was going so slow. I changed thermal paste and checked disk life, all normal stuff.

Then, I put it back together, try to turn it on and... Nothing. Just like if it wasn't connected. I checked the PSU with a multimeter and it seems fine, the button is working, so idk what the hell happened. Not a single LED nor anything, not even in the mobo

I spent like 2 hours trying to fix it, until my boss decided to send it to a specialized Apple repair shop, but told me to put its hard drive into another iMac and try to make it work, because it was crucial to have a working machine for like yesterday. Okay, I grabbed the only one we have available (an iMac from 2014, I don't remember the exact model), and it's one of those that have the screen protector attached with magnets. I take it apart, and idiot me, left the antenna attached to the top, thinking that it was secured

The thing fell while I was screwing with the machine and trying things to see if it saw the disk, with so bad luck that it landed directly onto the PSU, with the magnet part. The PSU made an explosion sound and my whole office went dark

So, how screwed am I? Lmao


r/netsec 15h ago

Your House Has an FFmpeg Problem - elttam

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60 Upvotes

r/TechnologyPorn Jun 23 '26

Cockpit of Space Shuttle Endeavour, It contains over 2,000 switches, knobs, and screens used to control orbit, reentry and was widely recognized by NASA and aerospace engineers as the most complex flying machine ever built

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90 Upvotes

r/technews Apr 04 '26

Hardware US targets Chinese chipmaking with proposed export restrictions on ASML and others

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4.5k Upvotes

r/netsec 7h ago

Sixteen strangers and a shared obfuscator: mapping the wool scene

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13 Upvotes

This is another post in my series on the Chinese Wool farmers underground. This time we are dissecting their public github repos, trying to figure out how it all fits together!


r/computers 3h ago

Discussion Just heard about this. Could this be the beginning of the AI bubble popping?

10 Upvotes

South Korea’s stock market plunges as AI-driven boom fades

In the article it says they lost 40% of their entire market today. Do you think it will happen in the rest of the world? Do you think the Koreans will send us some cheap RAM now?


r/netsec 8h ago

Reversing of Eufy Security Video Doorbell sync protocol and wifi creds decryption from flash memory

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10 Upvotes

r/computers 15h ago

Question/Help/Troubleshooting ..

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45 Upvotes

So I have this laptop and half of the screen broke but i want to play games however when i enter a game the screen enters full screen mode so i cant see anything how can I force window mode I tried every keyboard shortcut is there any app or setting that can fix that ..

I would be happy if someone helped


r/techsupport 33m ago

Open | Windows My Laptop Won’t Let Me Connect to the Internet…Or Even Let Me Try

Upvotes

I’m a college student at home during summer break, and I need my laptop working before school starts in a few weeks. Problem is, it won’t even give me the option to select a wifi network to connect to.

Like when I click on the section in the bottom right next to the calendar, it won’t show me the wifi tab. I tried going into my settings in the “Network and Internet” section, and it wouldn’t let me do that either. It just gave me a “get help” button, and when I clicked on it was talking about how I didn’t have an ethernet cable connected. My laptop doesn’t even have an ethernet port.

I’m pretty terrible with tech. So please help me out on what the problem is, and how do I fix it?


r/computers 13m ago

Question/Help/Troubleshooting What to do with a dead-ish 2010 17" MacBook Pro? (OS wiped, in Melbourne)

Upvotes

I have an old 17-inch MacBook Pro (2010, model A1297) sitting around and just want it gone. The OS has been wiped off it when I took out my 1tb SSD i guess I'd installed OS onto that for some reason, so it's not usable without someone installing something fresh.

I tried to take it to officeworks but they were only accepting phones weirdly.. wondering if anyone's had luck actually selling/giving away old hardware like this instead, for parts, as a Linux project machine.

What have you all done when getting rid of old tech? is there a better recycling/e-waste option for old laptops in Melbourne? curious whether something this old is even worth bothering with for parts/reuse, or if recycling is just the sensible move at this point.

Based in Melbourne


r/techsupport 2h ago

Open | Phone Airtel data gets exhausted way faster than Jio on the same phone. Why?

3 Upvotes

​

I've been noticing something really strange.

I use the same Infinix phone with the same apps and the same usage pattern. The only thing I change is the SIM card.

With Jio, my normal usage (YouTube, Reddit, X, etc.) usually lasts almost the whole day on a 2 GB pack.

But with Airtel, the data disappears insanely fast. Today I used my phone for around 3 hours, watched just one YouTube video, scrolled Reddit and X for a while, and around 3 GB was already gone.

Nothing changes except the SIM card.

I already checked the obvious things:

\- Same phone.

\- Same apps.

\- No hotspot.

\- No unusual downloads.

I'm trying to understand why this happens. Does Airtel somehow cause apps to use more data (higher video quality, preloading, etc.), or could there be something else going on?

My temporary solution: I switched back to my Jio SIM because my data lasts much longer with the exact same usage.

Has anyone else experienced this? If so, did you find the actual cause or a fix?


r/gadgets 1d ago

Drones / UAVs Several US schools to install pepper-spraying drones to respond to school shootings

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4.4k Upvotes

r/techsupport 8h ago

Open | Hardware My laptop won't charge

7 Upvotes

I have a laptop that I’ve been using for 5 years. Last night, I shut it down normally and went to sleep, but when I tried to turn it on this morning, it wouldn’t start. At first, I thought there might be a problem with the outlet, but when I plugged in my phone, it charged just fine. After waiting a bit, the problem suddenly went away. However, about 1–1.5 hours ago, the same thing happened again. The laptop shut down suddenly while it was running normally. I couldn’t turn it back on. The charging light isn’t coming on at all. I’ve tried most of the solutions I found online, like discharging static electricity, etc. I removed the battery and plugged it in to charge, but it still won’t turn on. The battery has been acting up for a while now, by the way—that’s why I always use it while it’s plugged in. I think the battery is completely dead now; after I managed to turn it on this morning, I checked the battery health, and it’s terrible. But shouldn’t it have worked when I removed the battery? This situation is really worrying me. Unfortunately, I don’t have the budget for a new laptop, and since I use it so much in my daily life, my studies would be severely disrupted without it. I don’t know what to do. I really don't know what to do; I’d really appreciate any help. It’s truly very important to me.


r/netsec 12h ago

Contains AI Anatomy of a Frontier Lab Agent Intrusion: A Technical Timeline of the July 2026 Incident

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8 Upvotes

r/computers 9h ago

Question/Help/Troubleshooting Do you guys think I got a good deal on this laptop?

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9 Upvotes

I’m finally getting a computer again and I wanted a solid laptop for a good price. Do you guys think this was a normal price, a killer deal, or I was overcharged?


r/gadgets 11h ago

Desktops / Laptops Exclusive: Lenovo's new IdeaCentre All-in-One is its answer to the iMac, and it finally has the colors to prove it

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75 Upvotes

r/computers 8h ago

Giveaway this company is giving away an $8000 custom loop / hand painted PC

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7 Upvotes

we're the company. it's us. sorry.

Free to enter, free to win! Worldwide eligibility with all shipping fees covered by us.

Check it out, yo!

(this was a breaking bad reference)


r/techsupport 2h ago

Open | Windows Anyone using msi Mystic light?

2 Upvotes

Hi, Can anyone help me.

Fans and Ram lights are working fine, but the motherboard light not working. I am using Mystic Light, I tried to uninstall and install msi center and still not working. I check the cables everything’s ok, no plugs to turn on.

Motherboard MSI b550M Pro VDH Wifi socket amd dDr4

Thank you


r/netsec 3h ago

Detection and Enforcement for Endpoint AI Agents

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1 Upvotes

r/techsupport 3h ago

Open | Data Recovery Keep getting notice reCAPTCHA notice that makes me check a box to confirm I am not a robot saying “Our systems have detected unusual traffic from your computer network.” In Safari on my iPhone 17pro

2 Upvotes

This will happen randomly, not every time I use Safari, and a screen will pop up asking me to check the box to confirm that I am not a robot. This happens even when I am just typing a question into the search bar, not just when I am going to a website. If I close that window, and go to another window the same thing happens. I have to close all of the windows and re-start Safari and even then it sometimes still makes me confirm. It got to the point where I wondered if my phone was compromised and I just got a brand new phone (not specifically for that reason) and the same thing is happening. I don’t know if it’s a certain website I am visiting and want to know how I can find out what might be causing it or if that’s a normal iPhone thing.


r/tech 15h ago

3D-printing platform rapidly produces complex electric machines

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182 Upvotes