Go to advanced search

by coolstuff
Sat Aug 26, 2017 5:27 pm
Forum: Troubleshooting
Topic: Pi 3 model B+ wont turn on
Replies: 6
Views: 1306

Re: Pi 3 model B+ wont turn on

Aight, thank you so much for your help. I might as well give it a go
by coolstuff
Sat Aug 26, 2017 4:18 pm
Forum: Troubleshooting
Topic: Pi 3 model B+ wont turn on
Replies: 6
Views: 1306

Re: Pi 3 model B+ wont turn on

well, it appears to be reversed :(

What could have caused this to happen?
Is there anything I can do to 'revive it' or is it completely dead?
by coolstuff
Sat Aug 26, 2017 3:41 pm
Forum: Troubleshooting
Topic: Pi 3 model B+ wont turn on
Replies: 6
Views: 1306

Re: Pi 3 model B+ wont turn on

Yeah I guess it is model B, dont know why I thought that. It did work when moddified (at one point) No, but when testing this I found that there was a squealing noise coming from the top right of the pi, just under the usb ports. It does work both with my pi zero and a separate pi 3 How do I go abou...
by coolstuff
Sat Aug 26, 2017 2:42 pm
Forum: Troubleshooting
Topic: Pi 3 model B+ wont turn on
Replies: 6
Views: 1306

Pi 3 model B+ wont turn on

Hi, So I recently dug out my pi 3 model b+, which was previously working. I plugged it in with a fresh copy of rasbian but it shows no sign of life, not even the red LED is on to signify that its receiving power. On this particular pi, I removed the micro usb power input slot as it was in the way fo...
by coolstuff
Sun Apr 30, 2017 2:59 pm
Forum: Beginners
Topic: Does anyone know the value of this capacitor?
Replies: 5
Views: 959

Re: Does anyone know the value of this capacitor?

Awesome, thanks. So, to be clear, the pi can work without it?
by coolstuff
Sun Apr 30, 2017 1:33 pm
Forum: Beginners
Topic: Does anyone know the value of this capacitor?
Replies: 5
Views: 959

Does anyone know the value of this capacitor?

http://imgur.com/a/xY4rZ

Its capacitor c106, thanks
by coolstuff
Sat Apr 01, 2017 8:25 pm
Forum: Troubleshooting
Topic: Ethernet port causing a weird issue
Replies: 0
Views: 246

Ethernet port causing a weird issue

Hi, I posted a thread a while ago about my raspberry pi shutting itself off whenever it touches anything metal (e.g. a spoon). After grounding it with a long wire to a metal case the problem seemed to be fixed but as soon as I reconnected Ethernet the problem re occurred. Originally I thought that i...
by coolstuff
Sat Mar 11, 2017 10:17 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

I'm 100% sure its not vibration. I tried lots of different materials and its only metallic objects that seem to set it off, I dont understand why trying to connect via SSH would cause it to happen though.
by coolstuff
Sat Mar 11, 2017 7:39 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Ok, I think I found the culprit and I have no idea why its like this.. So just before it became 'allergic to metal' I was transferring roms via SFTP, at which point I tried to connect my controller and it happened. Anyway, so I connected ethernet and it didn't connect so I went over to the pi tapped...
by coolstuff
Sat Mar 11, 2017 10:45 am
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Give as much info as you can as to how you had it wired up and I might be able to help with that. Namely what was wired to each terminal on the power boost circuit board. I'm confused as to why you used the Micro USB breakout board for example? The microusb breakout was so I could keep the powerboo...
by coolstuff
Fri Mar 10, 2017 8:06 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Take the power boost out and plug your power pack in directly to the Pi and see what happens? Awesome, it appears to be cured! I'm pretty sure the powerboost is dead though. I have a couple of questions though: 1. How do I prevent this from happening again? 2. does it periodically have to be connec...
by coolstuff
Fri Mar 10, 2017 6:44 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Its not connected directly to the mains, that would be stupid, I use this https://www.raspberrypi.org/products/universal-power-supply/ which goes to a micro usb breakout which goes to the powerboost. I dont have a multimeter to hand right now, but in a few days I will. I'm not using a big TV, its a...
by coolstuff
Thu Mar 09, 2017 8:06 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Maybe something is loose in your power circuit? Remove that powerboost and just try it with your standard USB input. Maybe there is a power enable input or something that is momentarily cutting your power on your converter, and is effected by some stray power coming in from your 'metal' object. I t...
by coolstuff
Thu Mar 09, 2017 7:34 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Allergic to metal? NONSENSE! if it's really "allergic to metal" then it must be some kind of magic, no device can be "allergic" to being touched by metal. Except perhaps when that "metal" is somehow connected to a large electric voltage, relative to the PI, but nothing...
by coolstuff
Thu Mar 09, 2017 6:27 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

What are you using for power and why is it connected to the GPIO Pins? Its being powered through the GPIO pins because I want to use it for portable use. Powers coming straight out of the wall in to a powerboost and then break-out board which splits ground and power. Pi gets 5v and the display gets...
by coolstuff
Thu Mar 09, 2017 5:44 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

A work around for what? What you are claiming doesn't make sense, are you saying that when you touch the metal shells of the PI with anything made out of metal, like a simple fork, the PI resets? That doesn't make sense, there are just two scenarios I can imagine when that would happen: You are cha...
by coolstuff
Thu Mar 09, 2017 4:34 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

What is it that your touching the ports with? What are you using for power and how is it connected? Anything connected to the GPIO pins? I have ground and 5V going in through the GPIO pins and its whenever anything metal touches the USB/Ethernet port shell. Earthing is a dark art. Get it wrong and ...
by coolstuff
Thu Mar 09, 2017 8:15 am
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

Bump - Anyone have a suggestion?
by coolstuff
Wed Mar 08, 2017 7:12 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

Re: USB ports not grounded?

all metal shell connectors of any PI (USB, HDMI Ethernet) are always electrically connected to the main ground plane of the PI. However, that ground plane is isolated from earth, except if it is earthed through the ground-wires of the HDMI cable, and though the monitor's power supply to the earth-p...
by coolstuff
Wed Mar 08, 2017 6:42 pm
Forum: Troubleshooting
Topic: USB ports not grounded?
Replies: 31
Views: 7146

USB ports not grounded?

Hello all,

I setup my raspberry pi 3 model b+ a couple of days ago, all was fine until I tried to plug in a USB device.... I cant touch the ports with anything metal without the pi shorting out and turning its self off. I don't know what to do, so please help :|

Go to advanced search