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Comment Re:Pinouts (Score 1) 606

RS232 is still pretty common with the electronics hackers.

A lot of modern embedded computers such as modems/routers have a TTL level serial port somewhere on the board. It's nice to have an extra way into the machine if its network is down, for example.

or you can make one in software.

Or software-as-hardware when programming FPGAs. Many FPGA boards have one traditional RS232 port, but it's only provided with voltage converters, so you need to program the actual signaling logic. But if you only need TTL level signals, you can skip the traditional voltages and use plain FPGA pins.

Comment Re:Gravity wave != Gravitational wave (Score 4, Informative) 82

Let me wikipedia that for you:

https://en.wikipedia.org/wiki/... -- waves on the surface of water whose dynamics is dominated by gravity. See https://en.wikipedia.org/wiki/... for smaller ripples dominated by surface tension.

https://en.wikipedia.org/wiki/... -- what the fucking article is about

Comment Re:Wireless "router" (Score 1) 67

This! I'd also like a VDSL modem without any CPU+firmware, as they are soon forgotten by manufacturers, especially after vulnerabilities in ancient kernels or libraries. I guess one reason for the "router" idea is to keep clueless consumers behind NAT for better security, but it's only ironic if the routing firmware itself is compromised, and there's no way to fix it. (I'm not even starting with the GPL violations.)

Simple bridges to Ethernet seemed more common in the early days, more so with cable than DSL. Unfortunately the standards have moved on, so it's harder to find anything like that for VDSL2.

Comment Re:Music and Math (Score 1) 229

Agreed, and I'd like to go a bit further with the art/music analogy. I think mathematics is an integral (pun intended) part of our culture, like it or not. You might not like classical music, but you'll probably appreciate its influences on more modern music.

This is somewhat related to the idea of math as a tool. For instance, I'd like young people to appreciate all the scientific research that went into creating their shiny electronic toys. But there's a lot more than the utilitarian aspect. A lot of our world and culture is built on mathematical and scientific ideas, simply because they have been effective means of making progress. Today's culture is increasingly digital and computational, so we should be teaching math even more as a form of art, rather than a tool for engineers.

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