Ask HN: Most interesting tech you built for just yourself?

Re:Ask HN: Most interesting tech you built for just yourself? by glapworth on Friday April 28, 2023 @02:51AM (#35738280)

We recently remodelled our kitchen and dining area, and I wanted some art piece on the wall but couldn’t decide what. For months the wall was a little bare and we were having a lot of dinner guests. I realised our WiFi password was too complicated to keep reading out to family and friends so I built a QR code in Lego that automatically connects you to our guest WiFi. It looks good, and it’s Lego so it was a fun project with the kids. It took about 4 hours to build. The only problem was having enough 1x1 tiles to put on a 37x37 matrix.

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Re:Ask HN: Most interesting tech you built for just yourself? by edelans on Friday April 28, 2023 @04:55AM (#35739017)

Thanks for sharing this, sounds like a cool activity to do with kids (and I didn't expect to find one on this thread!), will definitely steal that.

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Re:Ask HN: Most interesting tech you built for just yourself? by ra on Friday April 28, 2023 @05:29AM (#35739201)

Today I learned you can generate a QR that connects to WiFi.

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Re:Ask HN: Most interesting tech you built for just yourself? by bombcar on Friday April 28, 2023 @02:21PM (#35745139)

https://www.qr-code-generator.com/solutions/wifi-qr-code/ can build one, this is cool.

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Re:Ask HN: Most interesting tech you built for just yourself? by nashashmi on Friday April 28, 2023 @11:33PM (#35749768)

* * *

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Re:Ask HN: Most interesting tech you built for just yourself? by crote on Saturday April 29, 2023 @12:05AM (#35749929)

The best part is that you can generate the QR code from your phone. It's a button in the wifi settings. Really easy way to share it from one phone to another.

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Re:Ask HN: Most interesting tech you built for just yourself? by nashashmi on Saturday April 29, 2023 @12:18PM (#35754298)

Is it on the iPhone too?

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Re:Ask HN: Most interesting tech you built for just yourself? by Shorel on Saturday April 29, 2023 @02:39AM (#35750601)

You can also read the QR code from your Linux laptop.

Install zbar-tools and use zbarcam from the command line. It will read the QR code using the webcam, and now you have the Wi-Fi credentials.

Or any other data in the QR code.

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Re:Ask HN: Most interesting tech you built for just yourself? by dylanowen on Friday April 28, 2023 @06:26AM (#35739518)

Does this work for iOS yet? Last time I was trying out wifi qr codes only android handled them correctly.

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Re:Ask HN: Most interesting tech you built for just yourself? by glapworth on Friday April 28, 2023 @06:34AM (#35739570)

Yes, it works for both Android and iOS.

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Re:Ask HN: Most interesting tech you built for just yourself? by dylanowen on Friday April 28, 2023 @07:12AM (#35739838)

Sweet! Now to make some qr art. My last iteration was an NFC sticker behind a painting but people have a hard time with that one.

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Re:Ask HN: Most interesting tech you built for just yourself? by toyg on Saturday April 29, 2023 @03:16PM (#35756142)

I solved that problem with an NFC sticker in the hallway. Anybody with a recent (2-3yo) phone can just tap the sticker and get online.

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