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by Imperf3kt
Sun Jul 15, 2018 7:24 pm
Forum: Other projects
Topic: Question about safe shutdown
Replies: 2
Views: 26

Re: Question about safe shutdown

Solder your wires direct to the switch and other components ? Some additional context to your question may help provide more appropriate responses. I beleive the title, should clue you in on the intent. I cannot help as I haven't yet made a button that triggers shutdown / startup, but you could use...
by Imperf3kt
Sat Jul 14, 2018 10:42 am
Forum: Add-ons
Topic: Hardware Specification of the RPi's
Replies: 12
Views: 251

Re: Hardware Specification of the RPi's

Example: Max-Max of Supply voltages (+ ripple), Min-Max Temperature, Humidity. etc. Power supply specifications - not a reference to the "recommended " Power supply but a true specification. As stated in the documentation for the Raspberry Pi. voltage: 5.0v +/-0.25v Max/min temperatures: -40 to +85...
by Imperf3kt
Fri Jul 13, 2018 12:25 am
Forum: Beginners
Topic: Heatsink for RPI 3B+
Replies: 19
Views: 589

Re: Heatsink for RPI 3B+

... it isn't a magic blue smoke vent. Which is a good thing, because the magic blue smoke refill kit is no longer available from Sparkfun Electronics. ;) I keenly await the day they restock though, as my Pi0w had a leak in the seal and ran out of magic blue smoke shortly after purchase. I've consid...
by Imperf3kt
Fri Jul 13, 2018 12:23 am
Forum: Gaming
Topic: B and X buttons are inverted in games but not menu
Replies: 3
Views: 123

Re: B and X buttons are inverted in games but not menu

I'd suggest trying the retropi forums.

Personal rant:
The Raspberry Pi is a learning platform, not a games console, torrent box or media player. That it can be used as such, is an annoying bonus.
by Imperf3kt
Fri Jul 13, 2018 12:09 am
Forum: Advanced users
Topic: Solar with RPi Zero v1.3
Replies: 11
Views: 251

Re: Solar with RPi Zero v1.3

Is this for a 24 hour project? To figure out what size battery you need is kind of complex, but not hard. Here's an example. Out of 24 hours, you get roughly 8 hours of useable light in perfect conditions. That means you need at least 16 hours of battery backup. If your setup uses 100mAh, then you n...
by Imperf3kt
Thu Jul 12, 2018 9:39 pm
Forum: Beginners
Topic: Heatsink for RPI 3B+
Replies: 19
Views: 589

Re: Heatsink for RPI 3B+

Hi, I'm a Newbie to posting on this site, so I'm not sure if I can tag along and ask a question here about adding a heatsink to the 3B+? I have 2 other Pi3Bs streaming music and videos with OSMC, both in double height clear cases, and my new 3B+ is running fine; now I want to add a HAT to the GPIO ...
by Imperf3kt
Thu Jul 12, 2018 9:25 pm
Forum: Troubleshooting
Topic: Crashing RPi when doing "heavy" stuff
Replies: 12
Views: 324

Re: Crashing RPi when doing "heavy" stuff

Is the red LED on your Pi blinking at all?
by Imperf3kt
Thu Jul 12, 2018 9:18 pm
Forum: Troubleshooting
Topic: Pi Zero W not detecting usb devices
Replies: 5
Views: 103

Re: Pi Zero W not detecting usb devices

Do you have a power source connected to your powered USB hub?
Try unplugging it.
I once had a hub that backfed the Pi and caused all sorts of weird nonsense while powered, including not recognising USB devices.
by Imperf3kt
Thu Jul 12, 2018 10:02 am
Forum: General discussion
Topic: Is there a way to connect 2 RPi's to make a functional computer?
Replies: 15
Views: 625

Re: Is there a way to connect 2 RPi's to make a functional computer?

On the other hand... One of the best games one can play on any computer is creating games to run on it. Figuring out how to program the a game is the game! Some of the best programmers I have ever worked with cut their teeth as youngsters trying to make games for good old 8 bit machines like the Si...
by Imperf3kt
Thu Jul 12, 2018 9:59 am
Forum: Automation, sensing and robotics
Topic: Two 6V motors through RPi3B
Replies: 19
Views: 408

Re: Two 6V motors through RPi3B

Will this work?? or is the power from the AA’s also going in to the pi? Image attatched That picture is so hard for me to understand xD But to answer your question, yes, the batteries are directly connected to the Pis 5v via the breadboard (or so they seem to be), and is not a good idea to do this ...
by Imperf3kt
Wed Jul 11, 2018 11:35 pm
Forum: Automation, sensing and robotics
Topic: Two 6V motors through RPi3B
Replies: 19
Views: 408

Re: Two 6V motors through RPi3B

There are plenty of people powering the Pi in a mobile project from a LiPO power pack, but these are normally available in multiples of 3.6V, so you will need a 7.2V LiPO and then a voltage regulator to bring it down to 5V Except new LiPos are 3.7v nominal and can be as high as 4.35v when fully cha...
by Imperf3kt
Wed Jul 11, 2018 8:59 pm
Forum: Troubleshooting
Topic: can't get AV video out properly on Pi3B
Replies: 12
Views: 235

Re: can't get AV video out properly on Pi3B

The cable you have is probably the wrong type. There are several and they're all wired differently, which could put the signals on the wrong wire.
For example, if the cable feeds the video to the ground.connection, than it doesn't matter which plug you use, none of them will work.
by Imperf3kt
Wed Jul 11, 2018 10:54 am
Forum: General discussion
Topic: Birthdays
Replies: 10
Views: 376

Re: Birthdays

Better, would be to simply delete that "birthdays" feature. There's also an argument for pruning the forum membership of anyone who hasn't logged in in six months and has never posted (or has never made a post that got past the "SPAM Team" first post moderation). I second this, personally. This is ...
by Imperf3kt
Wed Jul 11, 2018 10:50 am
Forum: Advanced users
Topic: Brief voltage drop on UPS like system. would a capacitor fix it?
Replies: 40
Views: 1735

Re: Brief voltage drop on UPS like system. would a capacitor fix it?

I got tired of waiting on my new battery to arrive, so I just set up a test rig using a regular 2200mAh 18650. (I ended up getting an 18.5Wh LiPo designed for tablets, but it won't be here until August.) While I was at it, I placed a 3A SFE4 fuse inline with the 5v. Note: all (current) testing was d...
by Imperf3kt
Wed Jul 11, 2018 8:30 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 Model B+ - Under-voltage warnings [SOLVED]
Replies: 14
Views: 3112

Re: Raspberry Pi 3 Model B+ - Under-voltage warnings [SOLVED]

Looks identical to the splitter I use between my PC, PS4 and Raspberry Pi (but sometimes I use that port for other devices) Cannot say it causes me any issues and personally I fail to see how it would interfere with a completely unrelated power supply. Of course, looks aren't everything, there are l...
by Imperf3kt
Tue Jul 10, 2018 7:32 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 Model B+ - Under-voltage warnings [SOLVED]
Replies: 14
Views: 3112

Re: Raspberry Pi 3 Model B+ - Under-voltage warnings [SOLVED]

So are you running Raspbian Jessie on a Pi3b+? How, Jessie is not supported, you require at least the march/april release of Raspbian Stretch for your Pi3b+ to boot.
by Imperf3kt
Tue Jul 10, 2018 11:16 am
Forum: Beginners
Topic: Heatsink for RPI 3B+
Replies: 19
Views: 589

Re: Heatsink for RPI 3B+

Ah, right. Forgot they changed the soft throttle from 70 to 60 on a 3b+
by Imperf3kt
Tue Jul 10, 2018 7:12 am
Forum: Beginners
Topic: Heatsink for RPI 3B+
Replies: 19
Views: 589

Re: Heatsink for RPI 3B+

Wow! This Kintaro heatsink is a new idea. There are no mounting holes on the Pi for a heatsink so sticky tape is usually used. The thermal management on the 3B+ is very good, the PCB ground plane acts as a heatsink. So as JamesH says, try it first and monitor the temps with "vcgencmd measure_temp"....
by Imperf3kt
Tue Jul 10, 2018 12:06 am
Forum: Advanced users
Topic: Dual (small) touch display
Replies: 5
Views: 154

Re: Dual (small) touch display

Oh, okay. Was unaware of that, thanks for the info.

So it may be possible, but at the very least you'd require one HDMI screen. The smallest HDMI screen I know of is the Waveshare 4"
by Imperf3kt
Mon Jul 09, 2018 9:57 pm
Forum: Advanced users
Topic: Dual (small) touch display
Replies: 5
Views: 154

Re: Dual (small) touch display

You ask the impossible. Several reasons for this: Those small LCD screens use the GPIO instead of HDMI-D (on a Pi0) or HDMI/DSI on a full size Pi. Those GPIO screens operate at 15Hz, to have two, you need to share that, so you'd get about 7fps per screen. The touch input would require a new driverbo...
by Imperf3kt
Mon Jul 09, 2018 9:42 pm
Forum: Gaming
Topic: How is GBA emulation on RPi3?
Replies: 3
Views: 574

Re: How is GBA emulation on RPi3?

The CM3 is a daughterboard, it does nothing by itself.
Get a Pi3B+
by Imperf3kt
Mon Jul 09, 2018 4:18 am
Forum: General discussion
Topic: Two mechanically broken micro sd cards - Raspberry Pi Zero design fault?
Replies: 45
Views: 3646

Re: Two mechanically broken micro sd cards - Raspberry Pi Zero design fault?

First complainer has made 5 posts, second complainer has made 1 post. Too much time has been wasted even if they are actual cases. These two cases have too many zeros after the decimal point on the percentage of 20Million Pi's. Some people are just plain clumsy too. The amount of force required to ...
by Imperf3kt
Sun Jul 08, 2018 10:21 pm
Forum: General discussion
Topic: Two mechanically broken micro sd cards - Raspberry Pi Zero design fault?
Replies: 45
Views: 3646

Re: Two mechanically broken micro sd cards - Raspberry Pi Zero design fault?

Indeed. A project of mine requires me to remove the card before opening my custom made case. I VERY frequently forget this and quite often put a lot of force on the poor thing before realising.
I've yet to break anything. They really are incredibly strong things.
by Imperf3kt
Sun Jul 08, 2018 10:00 pm
Forum: Beginners
Topic: I have an idea for a raspberry pi in a truck. is it possible?
Replies: 3
Views: 192

Re: I have an idea for a raspberry pi in a truck. is it possible?

Where do you live (I'm assuming USA?), there may be laws regarding how you can and cannot turn your light bar on. In Australia, for example, they're only legal for offroad use and must have a physical switch, connected to a relay, connected to the high-beam circuit. So turning them on/off via a comp...
by Imperf3kt
Thu Jul 05, 2018 10:02 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Battery Indicator Percentage/Time
Replies: 7
Views: 516

Re: Battery Indicator Percentage/Time

Mahjongg, the op doesn't have a Pi-top, they only tried to install the Pi-top battery monitoring utility, thinking it would work with their x86 device. But, alas, being not a Pi-top, the solution failed.

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