Raspberry Pi Forums

The subject is " Legally extending Zero WiFi". Whatever hack you do will break certification. It is illegal to transmit on an uncertified device, even if your hack does not result in illegal EIRP. If, and only if, the Zero is not capable of transmitting at full legal EIRP in the country you are usin...

If the legal limit is Effective Isotropically Radiated Power (EIRP), then you cannot increase it using an antenna of any sort. The antenna is included in the calculation; if you use more gain then you must use less power. It's not a matter of debate, merely rumour, misinformation and how proactive y...

Twitter has just announced the new theme (RPI) is available. So maybe the icon was fixed at the same time as that was rolled out. I did switch to RPI and back to Prosilver, so there's a chance that did it, but the icon is now in the Prosilver header that I'm getting and it wasn't before so I think i...

jamesh wrote: ↑
Mon Jul 31, 2017 10:17 am
Re: Favicons. Work fine for me...have done for years. Not sure what others are seeing.

Well they are definitely not there for me, as shown in the HTML above. What theme, browser and OS are you using?

I will flag this up in the moderator's forum.

Here are the HTML <head> sections.

RPI

: ProsilverHead.png (25.67 KiB) Viewed 4847 times

Prosilver

: RPIHead.png (50.1 KiB) Viewed 4847 times

I agree; no icon on prosilver.

jamesh wrote: ↑
Sun Jul 30, 2017 10:18 am
Didn't the original prosilver also require you to go back to the index to get "New Posts"?

Yes. But "Your Posts" was always available.

A device that connects to the USB would not be described as a "hat". This Google search may be of use: https://www.google.co.uk/search?client=ubuntu&hs=V9l&channel=fs&q=usb+to+sata&oq=usb+to+sata&gs_l=psy-ab.3..0l4.1270377.1272536.0.1273461.11.11.0.0.0.0.144.949.8j3.11.0....0...1.1.64.psy-ab..0.11.9...

jamesh wrote: ↑
Wed Jul 26, 2017 9:57 pm
it was somewhat more 'interesting' than just a 'programming error'

Yes; my guess was wide of the mark, and only intended as a suggestion as to the sort of thing it could be. Turns out it was something else.

I note that some recent posts in this thread refer to "IP banning" (or some similar word construction). Is there any reason to believe that the banning has anything to do with IP addresses Yes, because it does. Rest assured that we are aware of such issues as dynamic IP addresses. These reports are...

I'm stupid with electronics too. Generally, if I build anything with mains, I hide behind the chair the first time I switch it on. The obvious thing to test is the voltage across the LEDs. You'll probably want to attach (and double-check) the probes before turning it on. If the LEDs have failed you ...

It was the Microsoft C compiler. And it was many years ago -- probably the version just before it became Visual C.

And it was not a bug. The compiler is allowed to use any translation it likes with the same effect. The expression it doubled had no side effects.

Note that subtracting 65 is an improvement over rurwin's solution. I'm happy enough that I got as close as one instruction to the optimum. It reminds me of the Two Laws of Optimisation: Don't do it. (For experts only) Don't do it now. I've also seen horrible code coming out of a compiler (compiling...

A nasty way of doing it would be to build an array of char (0 to 255 or -128 to 127 depending on the system) with each element set to 0 or 1, then use something like if( validchars[ch] == 1 ) printf( "is alpha" ); Sometimes a lookup table is the fastest way to do things. It will only take 256 bytes...

Interesting fact: isalpha() is not a valid replacement for that code and might even crash. Certain C libraries (<achem>Microsoft</achem>) throw an exception if they are given a negative argument. If you check the BSD sources you will find a comment to the effect that this might be a good idea. At le...

PeterO wrote:I like the "state machine" approach. Here's my take on it....

That fails if the first character not to match is the correct first key of the sequence. For example "12123#". That's why mine is complicated with the gotos. Nice compact state machine though.

void loop() { typedef enum { Start, Got1, Got12, Got123} States; static States state = Start; States FailState; bool printit = true; char keypressed = myKeypad.getKey(); if (keypressed != NO_KEY) { if (keypressed == '1') FailState = Got1; else FailState = Start; switch (state) { case Start: if (key...

I don't see any reason why not. 20g is rather small. If you were getting transients of 100g or more then I would have more concern. The one issue you might have is the plugs and sockets momentarily disconnecting or becoming stressed from repeated flexing. So I would tie down all the cables so that t...

First Law of System Programming: Never check for an error condition that you don't know how to handle. Or in this case, don't bother reporting an error so deep in the pre-boot phase that nobody will ever see it. It might even only have the serial console available. Variable size strings are always a...

Since I've proved:

I can do snark with the best of them.
I can't bear to do it even to someone I know doesn't mind.

It's time to end this madness.

0

RTFM
https://www.raspberrypi.org/documentati ... ce-tree.md

(Snarky enough? And yes, the answer is there... somewhere.

)

Hint 2: Hint 1

Hint 3: Section 3.2

Forum Incompetency Theorem: When a question is asked on a public forum, the supplied answers will split as follows 10% will report having the same problem but offer no help. 10% will report having an entirely different problem. 20% will answer a different question. 15% will answer incorrectly. 5% w...

This special thread gets to live in General discussion and Off topic discussion at the same time. :) It showed that way for me for a while, now I only see it in Off-Topic (had to go looking for it so I could keep complaining and trying to sidetrack everything). It's still there on page two. Secrets...

It used to be the case that for any half-way complex application, you could depend on the user being willing to put a few hours into learning how to use it. Not so much, now. There are several reasons for that. They are not paying huge amounts of money for every copy, there are many competing produc...

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Re: Legally extending Zero WiFi?

Re: Legally extending Zero WiFi?

Re: STICKY: NEW FORUM SKIN - Comments here please.

Re: STICKY: NEW FORUM SKIN - Comments here please.

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Re: STICKY: NEW FORUM SKIN - Comments here please.

Re: STICKY: NEW FORUM SKIN - Comments here please.

Re: STICKY: NEW FORUM SKIN - Comments here please.

Re: hdd hat? I think I'm going mad

Re: STICKY: NEW FORUM SKIN - Comments here please.

Re: STICKY: NEW FORUM SKIN - Comments here please.

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Re: How would you ...... in C ? (+ other C discussions)

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Re: 5" touchscreen calibration troubles.

Re: Snarky non-responses to questions - grumpy man ramblings

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Re: Snarky non-responses to questions