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by GTR2Fan
Mon Mar 14, 2016 7:16 pm
Forum: General discussion
Topic: Running a Windows program on NOOBS
Replies: 6
Views: 2202

Re: Running a Windows program on NOOBS

I do not understand I saw Windows 10 on pi 3 videos on youtube. It's Windows (of sorts) specifically built to run on ARM hardware. W ine I s N ot an E mulator. That's where its name comes from. Put those two together and you'll soon work out why x86 code isn't going to run on ARM with WINE regardle...
by GTR2Fan
Mon Mar 14, 2016 5:18 pm
Forum: Off topic discussion
Topic: Roadmap for 4GB RAM
Replies: 31
Views: 19350

Re: Roadmap for 4GB RAM

Because, for many people, it can be used as a desktop replacement. But if you want huge datasets, video editing, or anything to do with Android, you are better off with a fairly high spec PC... +1 to that entire post! With reasonable expectations and the choice of the best software for the job at h...
by GTR2Fan
Mon Mar 14, 2016 5:03 pm
Forum: General discussion
Topic: Today is Pi day.
Replies: 23
Views: 2826

Re: Today is Pi day.

RaTTuS wrote:I like
355/113
When's that on the calendar? The 355th of Octjanmepter? :|
by GTR2Fan
Mon Mar 14, 2016 4:44 pm
Forum: General discussion
Topic: Moderation
Replies: 18
Views: 1572

Re: Moderation

Piffle and hogwash?
by GTR2Fan
Mon Mar 14, 2016 2:48 pm
Forum: Advanced users
Topic: Analogue audio testing
Replies: 265
Views: 123395

Re: Analogue audio testing

THD measured experimentally on the Pi 3 output as -55dB @1kHz, signal -3dBFS -48dB @10kHz, signal -3dBFS Crosstalk approx -60dB with signal at -3dBFS. Pi2/A+/B+ are similar. Wow! Much more info than I was expecting. Thank you so much. As an improvement over the "DAC" on Pi, I would: - Use an audio-...
by GTR2Fan
Mon Mar 14, 2016 10:25 am
Forum: Advanced users
Topic: Analogue audio testing
Replies: 265
Views: 123395

Re: Analogue audio testing

@jdb: I'm designing a high quality add-on analogue audio filter and buffer circuit (for personal use at first, but I will share the schematics for free on the forum when built and tested) with a 20dB/decade roll-off above 22kHz. I was wondering if you are able to roughly calculate a minimum expecte...
by GTR2Fan
Sat Mar 12, 2016 6:45 pm
Forum: Beginners
Topic: Copy img 4gb to 8gb
Replies: 20
Views: 1843

Re: Copy img 4gb to 8gb

rjobaan wrote:That the whole problem (see begin of my post)
I think the biggest problem is that you won't tell us exactly what was installed on the card in the first place. Without knowing that, it's almost impossible to help you.
by GTR2Fan
Sat Mar 12, 2016 6:42 pm
Forum: General discussion
Topic: heat sinks
Replies: 3
Views: 674

Re: heat sinks

Hi. I just received a replacement RPi2 for a previous unit that died on me after a month. The replacement unit did not have those 2 stickon heat sinks. If the original had those heatsinks fitted already then it must have either been purchased second hand or have been someone else's returned Pi that...
by GTR2Fan
Sat Mar 12, 2016 6:34 pm
Forum: Beginners
Topic: images on SD card
Replies: 4
Views: 683

Re: images on SD card

Another alternative is to look for software that offers the same or similar functionality running inside Raspbian. For example, if all you're trying to achieve with Volumio is a music media organiser and player, Clementine can do this very nicely in an ordinary Raspbian environment.
by GTR2Fan
Sat Mar 12, 2016 12:23 pm
Forum: General discussion
Topic: How about a new game?
Replies: 47
Views: 6452

Re: How about a new game?

It's not FUD. It's just an extreme example of what could happen if a light aircraft has its communications interfered with by illegal broadcast equipment and strays into the path of a commercial airliner. It pays to paint a worst case scenario for anyone stupid enough to even consider broadcasting i...
by GTR2Fan
Sat Mar 12, 2016 1:22 am
Forum: General discussion
Topic: How about a new game?
Replies: 47
Views: 6452

Re: How about a new game?

There is a bandpass filter, which should clean up any bad noise, because there will be bad harmonics produced if you don't use one. You seem to have missed a very important point made in an earlier post. The Pi will radiate in all directions from everywhere. Just slapping an unapproved filter onto ...
by GTR2Fan
Fri Mar 11, 2016 5:14 pm
Forum: Beginners
Topic: DropBox
Replies: 4
Views: 1098

Re: DropBox

Google Drive with the Chromium 48 web browser? Works for me.
by GTR2Fan
Fri Mar 11, 2016 2:13 pm
Forum: Beginners
Topic: LEDs and Resistors
Replies: 8
Views: 1057

Re: LEDs and Resistors

I thought it was 16mA per GPIO and a total across all GPIOS of 50mA. You're probably right (I shall check and give myself a smack if wrong :D). I still wouldn't go the route of no series resistor though as there's no way of knowing what the current will be. 5mA is amazingly bright with modern LEDs ...
by GTR2Fan
Fri Mar 11, 2016 12:15 pm
Forum: Beginners
Topic: LEDs and Resistors
Replies: 8
Views: 1057

Re: LEDs and Resistors

Oh. So what value will i need? You would need to look at the datasheet for that LED to calculate it for exactly for 5mA. Look for the forward voltage drop at 5mA then subtract that from 3.3V, now use Ohm's Law to calculate the resistor value. Alternatively, use something upwards of 390 Ohms and you...
by GTR2Fan
Fri Mar 11, 2016 12:08 pm
Forum: Beginners
Topic: Can anyone tell me how to boot pi 3 from a usb drive
Replies: 63
Views: 10525

Re: Can anyone tell me how to boot pi 3 from a usb drive

latinhawk wrote:I tried your way with horrible results.
It works absolutely fine if you do it properly. It's been done many times before without issues. It won't necessarily be any faster or more reliable than a decent microSD card though, so it's often a complete waste of time and effort.
by GTR2Fan
Fri Mar 11, 2016 11:55 am
Forum: Beginners
Topic: LEDs and Resistors
Replies: 8
Views: 1057

Re: LEDs and Resistors

Is it okay if i connect an LED to my pi's gpio without a resistor inbetween the pin and the pi? Normally i do it without a resistor, but im making something permanent and not on a breadboard so i dont want to mess it up. No. Never. Doing so can kill the GPIO pin and ultimately the SOC, ie, the enti...
by GTR2Fan
Fri Mar 11, 2016 9:46 am
Forum: General discussion
Topic: Pi 3 first impressions
Replies: 17
Views: 4517

Re: Pi 3 first impressions

MikeDunn wrote:Yup, I bought one without checking to see if I need one.
A heatsink is not a heatsink and fan.
by GTR2Fan
Thu Mar 10, 2016 11:54 pm
Forum: General discussion
Topic: RPi 3 SoC at nearly 100 °C, reporting 80 °C
Replies: 238
Views: 90605

Re: RPi 3 SoC at nearly 100 °C, reporting 80 °C

Htaborda wrote:Do I have a defective RPi, or the boards are currently being sold with wild variations in thermal behaviour?
I suspect it's the latter as no two SOCs are going to be the same, but the dispute seems to be about how wild the variations actually are.
by GTR2Fan
Thu Mar 10, 2016 11:01 pm
Forum: Beginners
Topic: Launch Bar
Replies: 7
Views: 1535

Re: Launch Bar

Taxicletter wrote:Strange detail: I installed Iceweasel and it's in my menu, but not in the list where you can add it in the application launch bar.
I've had that happen too sometimes and it's only resolved itself after several reboots. One reboot I could understand, but several? :P
by GTR2Fan
Thu Mar 10, 2016 10:55 pm
Forum: Advanced users
Topic: logging 8 temperatures
Replies: 6
Views: 1005

Re: logging 8 temperatures

If eight separate temperature readings were needed, wouldn't it be easier and much cheaper to use an IR camera pointing at the exhaust manifold then take pixel value readings from the centre of each manifold branch? Feel free to laugh. That just fell out of my head. :D
by GTR2Fan
Thu Mar 10, 2016 10:22 pm
Forum: General discussion
Topic: RPi inside closed book, risk of fire?
Replies: 45
Views: 6294

Re: RPi inside closed book, risk of fire?

morphy_richards wrote:But where will the heat go if it's also enclosed in the book? :twisted:
The bookworms will create tiny ventilation holes in their attempt to escape the heat, silly! :lol:
by GTR2Fan
Thu Mar 10, 2016 10:17 pm
Forum: Troubleshooting
Topic: unable to use my image after expanding directory
Replies: 2
Views: 440

Re: unable to use my image after expanding directory

In the mean time, if you get completely stuck and a precompiled version of ffmpeg including a fairly recent x264, lame libfdk-aac, libaacplus might get you out of a hole, a kindly soul provided us with this last December...

viewtopic.php?p=868677#p868677
by GTR2Fan
Thu Mar 10, 2016 10:09 pm
Forum: General discussion
Topic: RPi inside closed book, risk of fire?
Replies: 45
Views: 6294

Re: RPi inside closed book, risk of fire?

rurwin wrote:Similarly in the case of the Pi in the book, with enough insulation and time even three watts can reach any temperature.
See? There really is a perfectly sane reason for the heatsink and fan on my enclosed and overclocked Pi2B. ;)
by GTR2Fan
Thu Mar 10, 2016 9:44 pm
Forum: General discussion
Topic: Pi 3 first impressions
Replies: 17
Views: 4517

Re: Pi 3 first impressions

I do worry about people who go the heatsink and fan route without giving any indication as to whether or not they've actually checked to see if they need one. :?

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