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by Imperf3kt
Sun Jul 12, 2020 11:02 pm
Forum: Off topic discussion
Topic: Worst "production" Pi installation
Replies: 17
Views: 574

Re: Worst "production" Pi installation

I thought I was bad.
I cringe looking at that photo.
by Imperf3kt
Sun Jul 12, 2020 10:42 pm
Forum: General discussion
Topic: How do you know if you need to add a cooling component for your Pi4?
Replies: 8
Views: 280

Re: How do you know if you need to add a cooling component for your Pi4?

The Pi will run at temperatures hot enough to burn you. This is completely normal behaviour. At about 80°C a thermometer icon will appear, indicating the Pi is at its thermal limit.(in my experience, this warning appears at around 72°C) It will throttle its performance to stop further heat generatio...
by Imperf3kt
Sun Jul 12, 2020 9:41 pm
Forum: Automation, sensing and robotics
Topic: Car with Motor that spins lego/Technic Driveshaft + Transmission
Replies: 1
Views: 73

Re: Car with Motor that spins lego/Technic Driveshaft + Transmission

YouTube has a ton of videos on this matter, just without the Pi. But that's easily fixed. But just for the sake of it, why? People usually drive each wheel with one motor because it is far more efficient and you get more power out of the car. A drive train system has frictional losses and you'll nee...
by Imperf3kt
Thu Jul 09, 2020 1:03 am
Forum: Troubleshooting
Topic: Pi Zero W: Help Please
Replies: 4
Views: 115

Re: Pi Zero W: Help Please

You didn't specify if you supplied power and inserted a Micro sd card with the latest operating system installed.

I assume you did, but...
by Imperf3kt
Wed Jul 08, 2020 8:29 pm
Forum: Off topic discussion
Topic: How many pi's do YOU own?
Replies: 33
Views: 964

Re: How many pi's do YOU own?

DougieLawson wrote:
Wed Jul 08, 2020 5:37 pm
RaspbianUser1 wrote:
Wed Jul 08, 2020 5:24 pm
Ok im sorry, this poll meant nothing which is just why i put it in off topic,
And that is precisely why they're a pointless waste of time.
Nobody is forcing you to participate. If you don't like polls, ignore the thread and move along.
by Imperf3kt
Wed Jul 08, 2020 8:25 pm
Forum: General discussion
Topic: Raspberry Pi Zero with micro HDMI
Replies: 21
Views: 651

Re: Raspberry Pi Zero with micro HDMI

It may reduce the manufacturing BOM, since more of the same parts could be ordered instead of different inventory stock, requiring extra handling, increasing overheads.

If that's feasible and would actually reduce costs, I'm sure it would have been considered.
by Imperf3kt
Wed Jul 08, 2020 8:19 am
Forum: Beginners
Topic: How to make your own board?
Replies: 9
Views: 309

Re: How to make your own board?

The "easiest" route is the Compute Module on a custom baseboard: https://www.raspberrypi.org/products/compute-module-1/ https://www.raspberrypi.org/documentation/hardware/computemodule/README.md Which is larger than a Pi0, and the OP requires even smaller. As unfortunate as it is, the answer is sim...
by Imperf3kt
Tue Jul 07, 2020 11:00 pm
Forum: Beginners
Topic: how many current does the fan draws?
Replies: 2
Views: 119

Re: how many current does the fan draws?

There should be a sticker on it with that information.
Looks like a cheap 40mm fan, so probably anywhere from 0.1A to 0.35A @12v, however given the Dupont connectors it's probably designed to run off 5v
by Imperf3kt
Tue Jul 07, 2020 8:35 pm
Forum: Windows 10 for IoT
Topic: Fingerprint
Replies: 5
Views: 184

Re: Fingerprint

The Raspberry Pi Foundation have also seemingly dropped support for it - if you've checked the downloads section in the last few months you'll notice it's no longer listed.
by Imperf3kt
Tue Jul 07, 2020 6:42 am
Forum: Troubleshooting
Topic: Is my pi still safe to use?
Replies: 6
Views: 206

Re: Is my pi still safe to use?

I would consider replacing the inductor before further use.
Also see this thread.
viewtopic.php?t=267766#p1625659
It is unlikely the inductor is the full extent of the damage, most of the damage is likely unseen and will begin to appear with time.
by Imperf3kt
Mon Jul 06, 2020 9:24 pm
Forum: General discussion
Topic: Interesting discovery re Raspberry Pi lightning bolt power warning.
Replies: 15
Views: 516

Re: Interesting discovery re Raspberry Pi lightning bolt power warning.

Heater wrote:
Mon Jul 06, 2020 8:32 pm
So what is the "interesting discovery" here?

Is it that when you see the lightening bolt then you know your power supply is not so good?

Is that the "interesting" thing?
No, it was apparently that simply switching which socket their power supply was plugged into made the lightning bolt go away.
by Imperf3kt
Mon Jul 06, 2020 5:37 am
Forum: Media centres
Topic: Power Pi from C13 Kettle Lead
Replies: 6
Views: 326

Re: Power Pi from C13 Kettle Lead

Fiddling with mains powered devices in Australia is illegal (even if you're qualified - approval processes, insurance reasons) , so we must come up with other inventive ways of powering things. Do you know if similar laws hold in New Zealand? I'm sorry, I don't know about New Zealand, although I'm ...
by Imperf3kt
Mon Jul 06, 2020 2:30 am
Forum: Beginners
Topic: Autonomous Nitro RC car
Replies: 5
Views: 157

Re: Autonomous Nitro RC car

Nitro? As in nitromethane? Sometimes fuel dragster fuel additive? Also tested--with disastrous results--as a rocket monopropellant? Yes, also known as hobby RC fuel. Per G. Harry Stine ("Rocket Power and Space Flight", 1956), nitromethane as a monopropellant has a nasty habit of "flashing back", th...
by Imperf3kt
Sun Jul 05, 2020 10:59 pm
Forum: Beginners
Topic: Autonomous Nitro RC car
Replies: 5
Views: 157

Re: Autonomous Nitro RC car

W. H. Heydt wrote:
Sun Jul 05, 2020 5:12 am
Nitro? As in nitromethane? Sometimes fuel dragster fuel additive? Also tested--with disastrous results--as a rocket monopropellant?
Yes, also known as hobby RC fuel.
by Imperf3kt
Sat Jul 04, 2020 9:51 pm
Forum: Beginners
Topic: Purchasing a RPi: How much GB RAM would I need?
Replies: 6
Views: 303

Re: Purchasing a RPi: How much GB RAM would I need?

Normally I'd recommend the 2GB version, but the 4GB version will also work.
The 8GB would be overkill for anything (unless you want to leave a hundred tabs open in a Web browser) in my opinion.
by Imperf3kt
Sat Jul 04, 2020 9:42 pm
Forum: General discussion
Topic: Recharable battry for DS3231
Replies: 8
Views: 304

Re: Recharable battry for DS3231

I have a rechargeable LIR2032 coin cell battery. In my experience, they work fine, but I would not use one with your proposed setup as charging it would be difficult without removing it from the RTC, and creating your own charging cradle for it.
by Imperf3kt
Thu Jul 02, 2020 9:41 pm
Forum: Raspberry Pi OS
Topic: How "optimised" is Pi OS, compared to Ubuntu 20.04?
Replies: 30
Views: 1392

Re: How "optimised" is Pi OS, compared to Ubuntu 20.04?

I can see from the ubuntu packaging website, it's got newer stuff (e.g. ocaml - one of my "problem packages"). Newer is not the same as optimised. I'd even go so far as to say that's a juxtapose statement. Are you sure "optimised" is what you're after, because if yes, then raspios is what you're af...
by Imperf3kt
Thu Jul 02, 2020 9:30 pm
Forum: General discussion
Topic: Delete account
Replies: 18
Views: 701

Re: Delete account

If you want your account deleted, the first step is: stop posting from the account you want deleted. That would be easier to do if anyone able to help was more helpful and everyone not involved stopped replying. I'm sorry, this is the World Wide Web. I thought we were supposed to use it like this. ...
by Imperf3kt
Thu Jul 02, 2020 1:14 am
Forum: Raspberry Pi OS
Topic: How to disable the "You have removed it without ejecting it" message?
Replies: 32
Views: 1178

Re: How to disable the "You have removed it without ejecting it" message?

Which brings us back to
Imperf3kt wrote:
Mon Jun 29, 2020 10:52 pm
Are you giving it sufficient time to flush its cache before removing it from the Pi?
How long do you give it after unmounting before you remove it?
by Imperf3kt
Wed Jul 01, 2020 10:10 pm
Forum: Media centres
Topic: Power Pi from C13 Kettle Lead
Replies: 6
Views: 326

Re: Power Pi from C13 Kettle Lead

Personally, I'd remove the plug and replace it with some form of faceplate you can plug the official power supply into. Then, inside the casing, you run a patch lead to the Pi. Reasoning behind this: Fiddling with mains powered devices in Australia is illegal (even if you're qualified - approval pro...
by Imperf3kt
Wed Jul 01, 2020 9:42 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 11573

Re: RPi4 - Power Savings

Endgame wrote:
Wed Jul 01, 2020 7:13 pm
What would be truly awesome would be the Official raspberry pi foundation listing of the idle and active power draw of every controllable component on the pi.
You could do this yourself now if you wanted. Look up the data sheet for the various components, that data should be included.
by Imperf3kt
Wed Jul 01, 2020 6:02 am
Forum: General discussion
Topic: RPi 4 Model B Power Consumption in Standby/Shutdown State
Replies: 7
Views: 389

Re: RPi 4 Model B Power Consumption in Standby/Shutdown State

In extremely rough terms in the UK a watt of power costs about £1.40 a year, so if its drawing 5W it would cost £7 a year if it was on 24/7/365 At that sort of money, I leave mine on (in command line mode) to reduce the amount of thermal cycling, continually expanding and contracting micron level d...
by Imperf3kt
Tue Jun 30, 2020 10:05 pm
Forum: Advanced users
Topic: RPi4 - Power Savings
Replies: 60
Views: 11573

Re: RPi4 - Power Savings

Endgame wrote:
Tue Jun 30, 2020 9:58 pm
Speaking of running without SD cards, is there a way to power off the SD card reader?
No. The SD card uses 3.3v which it gets from the PMIC which needs 5v input so it can generate the 3v3
You cannot reverse that functionality
by Imperf3kt
Tue Jun 30, 2020 8:30 am
Forum: Troubleshooting
Topic: Raspberry pi 4 power via GPIO headers causing wifi issues
Replies: 3
Views: 124

Re: Raspberry pi 4 power via GPIO headers causing wifi issues

Seeing as there is no (significant) difference between GPIO pins 2 and 6 vs the USB-C input, I can only assume you're not supplying enough current or voltage.

What are you using as a power supply and what kind of wires have you rigged up?
by Imperf3kt
Tue Jun 30, 2020 4:41 am
Forum: General discussion
Topic: Most stable OS & Browser combo for YouTube?
Replies: 21
Views: 767

Re: Most stable OS & Browser combo for YouTube?

RpiOS+Chromium doesn't crash with youtube since an update many weeks ago. I've noticed it's been better , but not perfect. Still just as bad on other sites like Reddit and Facebook. And other random sites with GIFs and/or videos. I've had almost perfect YouTube experience (except the major delay wh...

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