Go to advanced search

by Burngate
Wed Jun 05, 2019 5:14 pm
Forum: Troubleshooting
Topic: Zero W boots with faults, microSD card is fine
Replies: 10
Views: 433

Re: Zero W boots with faults, microSD card is fine

I've tried multiple microSD cards with Raspbian, NOOBS, and MotionEyeOS
I'm able to boot off of those same cards just fine with my model B+
Since the Pi Zero came out after the Pi B+, make sure what's on the SD cards is up-to-date by downloading burning a fresh copy of Raspbian on a card.
by Burngate
Wed Jun 05, 2019 9:45 am
Forum: Troubleshooting
Topic: Pi 3B - Broken SD card slot
Replies: 16
Views: 968

Re: Pi 3B - Broken SD card slot

I'd go with zardoz99's suggestion if possible - his idea is better than mine!
by Burngate
Tue Jun 04, 2019 5:52 pm
Forum: Troubleshooting
Topic: Pi 3B - Broken SD card slot
Replies: 16
Views: 968

Re: Pi 3B - Broken SD card slot

I'm not sure it's possible, but the solder pads look quite clean; could you temporarily clamp an SD card onto the connections, to enable USB booting?
Maybe a suitably insulated bulldog clip could work, and save you a few quid.
by Burngate
Tue Jun 04, 2019 5:20 pm
Forum: Off topic discussion
Topic: [FIXED] Ego Search / Own Posts failing
Replies: 59
Views: 9995

Re: [FIXED] Ego Search / Own Posts failing

Good news (possibly): you do still exist in that thread - a full-site search on Duckduckgo for that thread number says so. It may be that it's just taking about a day for the present to become proper history.
by Burngate
Tue Jun 04, 2019 10:47 am
Forum: General discussion
Topic: light detector with photo transistor
Replies: 34
Views: 1474

Re: light detector with photo transistor

Much depends on how far apart the LED and phototransistor are, how bright the LED is (how much current is going through it), how much light will reach the phototransistor from other sources, ... Using PiGraham's suggestion, you may need to add an external pull-up in addition to the Pi's internal pul...
by Burngate
Mon Jun 03, 2019 6:29 pm
Forum: Beginners
Topic: Cooling system
Replies: 8
Views: 368

Re: Cooling system

The Pi 3B+ has been designed to use the board itself as a heat-spreader, and will also throttle its speed to protect itself.
Extra cooling, such as a fan or heatsinks, can help but are usually not necessary.

as for putting it by an open window ... it may get extra sunlight ...
by Burngate
Mon Jun 03, 2019 6:11 pm
Forum: Beginners
Topic: Using capacitor buffer across GPIO pins
Replies: 15
Views: 2398

Re: Using capacitor buffer across GPIO pins

Those criminals that are so skilled to bypass the low-level architecture of my system will not find anything useful where the alarm is placed to justify their time and effort ;) But that won't stop them trying. Criminals are generally by definition Thick. Our house was burgled because it was "the w...
by Burngate
Sun Jun 02, 2019 11:02 am
Forum: Advanced users
Topic: rpi 3 dead - lan9514 very hot - CHANGE lan9514 but not solved
Replies: 7
Views: 546

Re: rpi 3 dead - lan9514 very hot - CHANGE lan9514 but not solved

Having looked back over your previous posts, it seems to me you're plugging something into the USB that's destroying your USB/LAN chip.
Until you've sorted that, no amount of changing chips will cure it.
by Burngate
Sun Jun 02, 2019 10:56 am
Forum: Beginners
Topic: How to hookup battery pack to a servo?
Replies: 8
Views: 292

Re: How to hookup battery pack to a servo?

A breadboard is merely a way to keep things tidy while you experiment, and to make it easy to change things when you've made a mistake. Once you've finalised your design, you would normally move to a more permanent soldered solution. Keeping the breadboard risks intermittent problems due to the conn...
by Burngate
Sat Jun 01, 2019 9:43 am
Forum: The MagPi
Topic: Magazine Wrapping
Replies: 13
Views: 1211

Re: Magazine Wrapping

If it looks like plastic, feels like plastic, smells like plastic, it's probably plastic. Put it in the plastic bin. Yes, but which plastic? LDPE? HDPE? PP? At Sutton they have a green bin for cardboard and paper and a small box for bottls and foil. Round Ascot way, the blue recycling bin accepts H...
by Burngate
Sat Jun 01, 2019 8:47 am
Forum: Troubleshooting
Topic: multiple pi zero boards can only be powered with gpio
Replies: 1
Views: 118

Re: multiple pi zero boards can only be powered with gpio

On the Pi Zero, the μUSB 5v & gnd are connected directly to the 5v & gnd of the GPIO header; if it works connecting to one, it should work connecting to the other. I would look at the state of the μUSB sockets - is there any foreign matter stuck in there? - and also the quality of your μUSB cable. E...
by Burngate
Fri May 31, 2019 9:31 am
Forum: Off topic discussion
Topic: [solved - no changes will be made] Forum suggestions
Replies: 20
Views: 1671

Re: Forum suggestions

klricks wrote:
Fri May 31, 2019 5:17 am
dl324 wrote:
Fri May 31, 2019 2:39 am
It would be nice
1. if a picture could be pasted from "the clipboard" into the text entry box.
...
...
1. I think you can drag and drop a file but never tried that.
...
Note I use Prosilver forum theme.
AddFiles.jpg
AddFiles.jpg (20.1 KiB) Viewed 1568 times
by Burngate
Thu May 30, 2019 10:33 am
Forum: Graphics, sound and multimedia
Topic: Outdoor audio and high wattage speakers
Replies: 7
Views: 1197

Re: Outdoor audio and high wattage speakers

The rating on the speakers is their maximum rating, not their nominal rating. You can drive the speakers with an amp capable of anything up to 100W, provided 100W is their RMS rating and not the peak rating. Delving deeper into the specs for those speakers, it seems they're each 50W RMS. Given they...
by Burngate
Sun May 26, 2019 10:15 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Voltage sensor gets 50 Hz noise in ADC
Replies: 3
Views: 366

Re: Voltage sensor gets 50 Hz noise in ADC

Since your oscilloscope is also showing the 50Hz signal, your RPi is responding correctly, and your problem is with the wiring. Much depends on wire-lengths and resistor values. Long wires can pick up stray voltages from surrounding magnetic / electric fields, as seems to be the case here. You can r...
by Burngate
Sat May 25, 2019 8:25 am
Forum: Troubleshooting
Topic: Raspberry Pi Night Vision Camera LED
Replies: 5
Views: 362

Re: Raspberry Pi Night Vision Camera LED

Since it's not an official camera, it might be worth talking to your supplier. They should know the characteristics of the LEDs they're fitting.
by Burngate
Fri May 24, 2019 5:26 pm
Forum: Troubleshooting
Topic: Pi hardware problem?
Replies: 5
Views: 307

Re: Pi hardware problem?

deepakdeshp wrote:
Fri May 24, 2019 5:24 pm
Is the warning on the pi board LEDs. I run it as headless.
Red LED goes out when the incoming voltage is too low.
by Burngate
Thu May 23, 2019 8:53 am
Forum: Off topic discussion
Topic: [FIXED] Ego Search / Own Posts failing
Replies: 59
Views: 9995

Re: Ego Search / Own Posts failing

... but I bet they said a few things under their breath.
Like ... "can't he just leave us alone to get on with it, instead of wasting our time answering e-mails!"
by Burngate
Wed May 22, 2019 5:33 pm
Forum: Off topic discussion
Topic: ARM, Broadcom pull the plug on Huawei
Replies: 14
Views: 1474

Re: ARM, Broadcom pull the plug on Huawei

jamesh wrote:
Wed May 22, 2019 4:25 pm
... the unintelligent occupant of the White House ...
A good proportion of the US population voted for their current president, and are presumably happy with their choice, even if the more vociferous minority don't like it.
but, do we have to have politics brought in here?
by Burngate
Wed May 22, 2019 5:07 pm
Forum: Beginners
Topic: Small part fell off my pi
Replies: 20
Views: 895

Re: Small part fell off my pi

Brandon92 wrote:
Wed May 22, 2019 10:33 am
However I'm not so sure if this is good for a headphone itself if you don't use that capacitor.
Yet one more thing I don't know. The list just keeps growing.
And I don't intend experimenting with this, 'cos I like my sound through big speakers!
by Burngate
Wed May 22, 2019 9:23 am
Forum: Beginners
Topic: Small part fell off my pi
Replies: 20
Views: 895

Re: Small part fell off my pi

No, actually, I'm not sure. At least in the old days 47μF was far too big for ceramic, but now it seems 47μF in case size 3216 is available as multilayer ceramic as well as tantalum, etc. My point still stands: whatever you plug into this shouldn't be feeding anything back into the Pi, and won't dam...
by Burngate
Tue May 21, 2019 5:03 pm
Forum: Beginners
Topic: Small part fell off my pi
Replies: 20
Views: 895

Re: Small part fell off my pi

Without C83, 6v into the left channel will end up on the output of U11, and probably kill it. As long as it can supply 60mA at that voltage through R17. But with C83 in the way, that cap will be reverse-biased and will act like a short circuit, so the end result will be the same. TL;DR If the op doe...
by Burngate
Tue May 21, 2019 9:56 am
Forum: Beginners
Topic: Small part fell off my pi
Replies: 20
Views: 895

Re: Small part fell off my pi

Do NOT short the connection. C58 is a DC blocking capacitor and is necessary to prevent possible damage to the Pi, and even in the absence of damage it may be necessary for an undistorted signal. I'm not convinced on either point. The jack can short the left audio to ground as the plug it's being i...
by Burngate
Tue May 21, 2019 9:08 am
Forum: Troubleshooting
Topic: Dead RPi 3 B+ after short circuit pin 1 and 2 of GPIO
Replies: 15
Views: 6437

Re: Dead RPi 3 B+ after short circuit pin 1 and 2 of GPIO

Kazemiprince wrote:
Mon May 20, 2019 4:05 pm
Close to regulators I can measure 3.3 v on a resistor
That'll be the supply for the audio, 3v3A, not the main 3v3 for the logic.

Go to advanced search