Raspberry Pi Forums

davidcoton

Milliways wrote: ↑
Thu Dec 12, 2019 2:48 am
The real problem is the 100MΩ resistors they inserted in my brain in ICU.

Is that on the inputs or the outputs?

davidcoton

If you write your code in Rust, then abandon it for a year or two, does it go Rusty? I think Kira and Fido should borrow the Turbo Encabulator to investigate. Should Heater, having begun to adopt Rust, be renamed Mr Rusty? Should Zebedee investigate that, or is Rust a threat to his thRust? Maybe we ...

davidcoton

So, you don't want to watermark the wallpaper (a one-off operation that could identify the OS installation), you want a live display of the name and IP of the current data? Actually, even that is dependent on software settings, not the base hardware, and will move with the SDCard or other root files...

davidcoton

Let me clarify my previous post.
Adding any external antenna to the Pi3B+ built-in WiFi and Bluetooth will invalidate its FCC, CE, or equivalent certification.

davidcoton

Just wanted to post, high gain antenna solved my fast hand off issues. You are aware, of course, that adding a high gain antenna to a Pi3B+ will invalidate its FCC, CE, or equivalent certification in (almost?) every country? In the worst case, you will get an unpleasant visit from the men in black.

davidcoton

If apt does overwrite the file without asking, then I am definitely not going to use it ever again. I realise that is a Debian issue, not a Raspbian one, but overwriting config files (if that is the case) without asking is just not acceptable. I'll stick with apt-get, which is proven and has worked...

davidcoton

HawaiianPi, Yea, don't do that either (even once). Well, it was an interesting, shall we say 'experiment'. The first time I inadvertently applied 12v to a Pi smoke came out and a protection diode unsoldered itself and jumped off the board. I realized my mistake pretty quickly and shut it down. Amaz...

davidcoton

youngdawg wrote: ↑
Mon Dec 09, 2019 5:55 pm
How does the Raspberry Pi work?

01000110 01100001 01110011 01110100

davidcoton

yabusa wrote: ↑
Mon Dec 09, 2019 12:05 am
... there's no audio from my monitor.

Does your monitor have speakers? Many don't.

davidcoton

emma1997 wrote: ↑
Sun Dec 08, 2019 10:47 pm
No such thing as perfect short or open on this planet.

Superconductivity?

davidcoton

dschorfhaar wrote: ↑
Sun Dec 08, 2019 8:29 pm
Step 2: Enable USB boot mode...

This thread is about the Pi4. Your tip is for Pi3B (not 3B+) and later Pi2B only.

davidcoton

My understanding is there can be no current w/o voltage and versa vice. There can be current without voltage, but only with zero resistance. There can be voltage without current, but only at infinite resistance. The above is only strictly valid for DC conditions. For AC (or alternating voltage), re...

davidcoton

hi ear buds may not work due to the pin outs of the connector good luck crofter The pin outs are carefully designed to add the video out while retaining stereo audio compatibility. The problem with pin out is only relevant with AV leads, where there are at least three different conflicting standard...

davidcoton

Check Joan's idea first. Unplug everything except the cobbler from the breakout board. Check the voltages (pins 1, 2, 4, 6 etc) with reference to the metal shell of one of the Pi's connectors (USB, HDMI, etc). Get that right before reconnecting and testing anything else (if it is wrong, connecting t...

davidcoton

Does the 2GHz overclock work with the FS on an SDCard?

Did you use rpi-update? If so, see this thread and particularly this post.

davidcoton

According to the head of marketing and communications, Orson is first on the list of potential reviewers for the Beginners All-purpose RISC Komputer. While waiting for the BARK to go into production, maybe he could write an article for the MagPi. Fido has numerous relatives in and around my home vi...

davidcoton

A polyfuse is not a diode and would not protect against reverse polarity. Of course not. The polyfuse protects the TVS diode that IS still present on the Pi4. So on older (not Zero) models, fault conditions trigger the TVS diode to conduct, which draws maximum current from the PSU, thus tripping th...

davidcoton

Thanks for help, Raspberry Pi 4 Is working normally but the HDMI out put just too week and Raspbain is have some error like When i add memory for GPU, it restarting, i know it know it ok. But when Reboot complete, both of USB 2.0 and 3.0 output is not working!. Don't add memory for GPU on a Pi4. Ma...

davidcoton

cakeslob wrote: ↑
Thu Dec 05, 2019 1:07 am
I dont know enough about whats going on to fake it, so here are some hardware pics ...

The pictures appear to be the 1.2 revision. What is the revision from Dougie's recipe above?

davidcoton

I am assuming you are using a step down converter? Whatever the power source, you must deliver 5V (+/-0.25V) to the Pi. Depending on what is connected to it, a Pi4B may require up to 3A (15W). So some checks: Does the printer's PSU (at whatever voltage) have a spare 15W capacity? If the printer sup...

davidcoton

... am I supposed to somehow close a thread when it has been solved? You can close the thread by editing your OP and adding "[Solved]" to the title. It won't prevent further posts, but should indicate that there is no outstanding issue. (If you feel it should be locked, report your own post and ask...

davidcoton

avensis18 wrote: ↑
Wed Dec 04, 2019 2:17 pm
it would be nice to be able to adjust the forum to use white on black

Personally I want pink ponies and rainbow unicorns round the edge. Not.

davidcoton

Heater wrote: ↑
Wed Dec 04, 2019 7:52 pm
... the Personal Computer Winter closed in with the arrival of Windows.

Personally I recommend closing Windows with the arrival of winter.

davidcoton

Just noticed that when I put sudo apt-get install x11-apps it shows Package x11-apps is not available . Don't use apt-get, it is intended for scripting and may fail under some conditions. Use apt instead, it is more likely to ask you for help if there is an issue it can't resolve. So, in this case:...

davidcoton

You can't. The base design is not public.
Element14 (as one of the companies that can commission production of Pi) offer a custom design service, if your order is big enough.

Search found 4248 matches

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