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by Imperf3kt
Thu Jul 18, 2019 10:28 pm
Forum: Off topic discussion
Topic: 1TB microSD Card is real!
Replies: 16
Views: 621

Re: 1TB microSD Card is real!

mahjongg wrote:
Thu Jul 18, 2019 2:12 pm
If you have such a large video collection, its more efficient/cheap to spread it over *several* SD-cards.
And a better idea in general.
Should you lose one of the cards, you don't lose your entire collection.
by Imperf3kt
Thu Jul 18, 2019 10:22 pm
Forum: Off topic discussion
Topic: Something I'd like to see. ( USB to SATA bridge )
Replies: 36
Views: 1398

Re: Something I'd like to see.

A keyboard and mouse take next to no R&D, so it's simply a case of produce sell and profit, but this suggestion is different, it would require research and budget.
by Imperf3kt
Thu Jul 18, 2019 11:15 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 291
Views: 58184

Re: Raspberry Pi 4 temperature

Somebody has done a neat review/comparison on the newly released ice tower cooler linked earlier in the thread
https://www.youtube.com/watch?v=RyUXC3886Ic
by Imperf3kt
Thu Jul 18, 2019 4:45 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 29
Views: 985

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

While not particularly recommended, not every charger is terrible. I've been powering my Pi4b via both the official Pi3 power supply and a random high quality 4.8A (2x2.4A) usb wall wart, with micro usb to usb c adaptor. In both cases, I've yet to see an undervolt warning. Granted, my use so far has...
by Imperf3kt
Thu Jul 18, 2019 4:25 am
Forum: Off topic discussion
Topic: 1TB microSD Card is real!
Replies: 16
Views: 621

Re: 1TB microSD Card is real!

Local online retailers seem to want about eighty cents per gigabyte for them. In comparison, a standard 1TB HDD will set you back five cents per gigabyte, getting cheaper as you scale up with 4TB costing just 2.5 cents/gb! Source: https://www.guru3d.com/news-story/decline-price-per-gb-for-hdds-comes...
by Imperf3kt
Thu Jul 18, 2019 4:17 am
Forum: General discussion
Topic: Raspberry Pi Zero W Power Abbilities
Replies: 5
Views: 291

Re: Raspberry Pi Zero W Power Abbilities

BRETT_No5 wrote:
Thu Jul 18, 2019 3:20 am
Pi is powered by a 2.4A USB. I don't know what that means for my LEDs but I am sure I'll find out.
It means you have 12W less resistances to power both a Pi0W (~150mA, ~0.75W) and your LEDs, assuming the power supply is accurately providing 2.4A at 5v
by Imperf3kt
Thu Jul 18, 2019 1:04 am
Forum: Off topic discussion
Topic: Something I'd like to see. ( USB to SATA bridge )
Replies: 36
Views: 1398

Re: Something I'd like to see.

hippy wrote:
Thu Jul 18, 2019 12:44 am
A decent and capable USB to SATA bridge would probably be of most benefit to people.
Of course, but is it something the raspberry pi foundation should be focusing on?
by Imperf3kt
Wed Jul 17, 2019 10:13 pm
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 29
Views: 985

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

And the question itself makes no sense, they're all at the same price... Ah well, maybe someone will want to expound on the compared TCO of Pi3 and Pi4, including energy and accessories costs... :D No, they're not really, at least not once you factor in necessary accessories. But that depends on on...
by Imperf3kt
Wed Jul 17, 2019 10:00 pm
Forum: Off topic discussion
Topic: Something I'd like to see. ( USB to SATA bridge )
Replies: 36
Views: 1398

Re: Something I'd like to see.

This isn't likely to happen.

I'd instead ask a 3rd party to begin a kickstarter campaign or similar.
by Imperf3kt
Wed Jul 17, 2019 9:39 pm
Forum: General discussion
Topic: Pi 4 Max Size & Fastest Supported MSDCard?
Replies: 12
Views: 500

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Thank you everyone for the great replies! I have a 128gb Evo in my 3 B+ and it works well, I've tried a few other 64gb and 128gb cards and they fail to boot the Pi. I can't wait to get my Pi4 when the 4gb ones ship in August. As always, when buying large storage media, you should always perform a t...
by Imperf3kt
Tue Jul 16, 2019 9:21 am
Forum: General discussion
Topic: SanDisk A2 mode support - worthless, waste of money
Replies: 15
Views: 829

Re: SanDisk A2 mode support - worthless, waste of money

That's contrary to other replies from SanDisk I've read where the A# series was the recommended storage device for a Raspberry Pi.

Currently, tests performed by forum members point to A1 being the best card to use with A2 potentially performing worse due to requiring specialised peripherals.
by Imperf3kt
Tue Jul 16, 2019 5:30 am
Forum: Troubleshooting
Topic: [Solved] New Raspberry 4b 4g dead upon arrival
Replies: 17
Views: 764

Re: New Raspberry 4b 4g dead upon arrival

Forgot to mention to check that the microHDMI was fully inserted. When I first plugged mine in, it felt like it was all the way in, but wasn't, I kept pushing and then it clicked in.
by Imperf3kt
Tue Jul 16, 2019 2:19 am
Forum: Troubleshooting
Topic: [Solved] New Raspberry 4b 4g dead upon arrival
Replies: 17
Views: 764

Re: New Raspberry 4b 4g dead upon arrival

When you say blinks for a while, i
You don't mean a pattern of four flashes, do you?
by Imperf3kt
Tue Jul 16, 2019 1:24 am
Forum: General discussion
Topic: Pi 4 PCB Defect? (fiberglass thread loose)
Replies: 15
Views: 1009

Re: Pi 4 PCB Defect? (fiberglass thread loose)

From the description of what it actually is, I suspect a light touch with a fine file would clean it up nicely. I second this. My Pi4b came with a rather rough edge (I stabbed myself with mine) Just rub it back with something flat to break loose any large burrs and then hit it (gently) with some fi...
by Imperf3kt
Mon Jul 15, 2019 11:51 pm
Forum: Automation, sensing and robotics
Topic: 'Uninteruptible' Power Supply
Replies: 2
Views: 139

Re: 'Uninteruptible' Power Supply

From your description, you have constructed an explosive / fire.
This is how I interpret your description
Image

Please post images of your circuit and any additional info about it, nobody here can help without it.
by Imperf3kt
Mon Jul 15, 2019 10:41 pm
Forum: Graphics, sound and multimedia
Topic: How to send a sound signal through gpio pin to speaker?
Replies: 7
Views: 223

Re: How to send a sound signal through gpio pin to speaker?

LTolledo wrote:
Mon Jul 15, 2019 9:47 pm
What RPi model you are using?

most RPi Boards have audio jacks where you can connect any audio amp
The OP doesn't want audio playback, they want to generate tones and buzzes etc.
by Imperf3kt
Mon Jul 15, 2019 9:50 pm
Forum: General discussion
Topic: Usefull / good programs to have on your Pi
Replies: 22
Views: 1027

Re: Usefull / good programs to have on your Pi

The only program I install on top of a Raspbian desktop is renpy.
Unfortunately the one in the repos is very outdated / experimental, so I must compile it from source myself.

Raspbian has everything else I need.
by Imperf3kt
Mon Jul 15, 2019 3:20 am
Forum: General discussion
Topic: Pi 4 PCB Defect? (fiberglass thread loose)
Replies: 15
Views: 1009

Re: Pi 4 PCB Defect?

A photo and perhaps description would be better.
In that video, at the 50 second mark, I see no defect.
by Imperf3kt
Sun Jul 14, 2019 10:20 pm
Forum: Automation, sensing and robotics
Topic: Power small motor (directly) from PI 5V
Replies: 4
Views: 201

Re: Power small motor (directly) from PI 5V

As I have answered this on similar topics you can power the motor directly from RPi's 5v one speed, one direction, and one time only! after that your RPi is K.I.A or R.i.P. What kills the Pi? As far as I see, you are merely connecting a motor ditectly to a current source. If the motor draws too muc...
by Imperf3kt
Sat Jul 13, 2019 9:45 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 291
Views: 58184

Re: Raspberry Pi 4 temperature

Gave this a try yesterday.
https://i.imgur.com/6U0YAxF.jpg (8MB image)

Fan running directly from one of the Pi's USB ports.
Managed to keep it around 29°C
by Imperf3kt
Sat Jul 13, 2019 9:22 pm
Forum: C/C++
Topic: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?
Replies: 303
Views: 6868

Re: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?

[*]Energy efficiency of your programs matters very little . If you spend ages writing code for a little time running it, you've still used a load of energy sitting thinking while you code/debug. [/list] For example, my desktop + monitor draws 60 W idle or 100 W with one of its eight cores at 100%. ...
by Imperf3kt
Fri Jul 12, 2019 9:50 am
Forum: General discussion
Topic: Pi4 GPIO header disaster
Replies: 26
Views: 1380

Re: Pi4 GPIO header disaster

I've just put some stand-off's on my Pi4b and noticed they were crooked and upon loosening them I discovered they're very loose fitting, able to move by up to a mm.

Are you using stand-offs? Are they screwed in correctly?
by Imperf3kt
Fri Jul 12, 2019 8:31 am
Forum: Off topic discussion
Topic: Old fashioned fault finding....
Replies: 20
Views: 888

Re: Old fashioned fault finding....

Wait, it's a museum piece?
What sort of programs do you make for that.
by Imperf3kt
Fri Jul 12, 2019 8:30 am
Forum: General discussion
Topic: RPi4 chargers
Replies: 19
Views: 845

Re: RPi4 chargers

I also use the official 2.5A power supply with an adaptor (because I had one for my phone)
Works great. Have not yet stressed the system, but it worked fine doing everything I do on my laptop.

Just make sure you use a usb-c power supply, and not a usb-c charger.
by Imperf3kt
Fri Jul 12, 2019 8:27 am
Forum: General discussion
Topic: I didn't think the usb c power thing was a big deal...
Replies: 92
Views: 4107

Re: I didn't think the usb c power thing was a big deal...

Such devices are chargers and as such, not suitable for use as a power supply anyway.
Its the exact same situation as we had with the last connector, only this time its idiot proof - the devices are smart enough to know that they're chargers, not power supplies.

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