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by RGJ-PI
Tue Jul 07, 2020 1:39 pm
Forum: Ubuntu
Topic: terminate automatically "candump" after a certain time
Replies: 2
Views: 43

Re: terminate automatically "candump" after a certain time

This page http://manpages.ubuntu.com/manpages/bio ... ump.1.html lists command use and adding -T <msecs> (terminate after <msecs> without any reception) would do what you require?
by RGJ-PI
Sun Jul 05, 2020 8:36 am
Forum: General discussion
Topic: Please improve the sound quality of the Raspberry Pi product.
Replies: 22
Views: 880

Re: Please improve the sound quality of the Raspberry Pi product.

The Pi is a extremely cost optimised product. Adding a significantly better analogue audio output would increase the cost for everyone and only be used by a small proportion of users. As mentioned there are plenty of add on boards to provide higher quality analogue audio or if you really want an on ...
by RGJ-PI
Sat Jul 04, 2020 9:08 pm
Forum: Beginners
Topic: Beginner's Project - already ran into trouble
Replies: 4
Views: 186

Re: Beginner's Project - already ran into trouble

Nano is a default installed linux text editor that will work without warnings or installation. As mentioned before just replace the line 'sudo leafpad index.php' with 'sudo nano index.php' and edit as required. This Magpi article explains nano commands and use (Step 4 in the article) https://magpi.r...
by RGJ-PI
Sat Jul 04, 2020 7:28 pm
Forum: General discussion
Topic: Component recognition
Replies: 2
Views: 87

Re: Component recognition

That part is a 470nH surface mount inductor. It is part of the power supply for the memory. Provided the tracks/pads aren't damaged beyond repair then it should be okay to replace if you have a suitable fine pitch soldering iron. It'll be tricky though as heavy tracking and tight component spacing.
by RGJ-PI
Thu Jul 02, 2020 6:37 am
Forum: Beginners
Topic: Beginner's Project - already ran into trouble
Replies: 4
Views: 186

Re: Beginner's Project - already ran into trouble

Try sudo nano index.php instead. Nano is an alternative text editor installed by default.
by RGJ-PI
Wed Jul 01, 2020 11:29 am
Forum: Media centres
Topic: Power Pi from C13 Kettle Lead
Replies: 6
Views: 290

Re: Power Pi from C13 Kettle Lead

You could probably find a 5V PSU with mains lead input and hand wire a IEC C14 plug in place of the usual mains plug but I doubt you can do that cheaper than the solution you mentioned. https://www.amazon.co.uk/Power-cable-IEC-plug-socket/dp/B005FWRHNQ is slightly cheaper with less mains cable so I'...
by RGJ-PI
Wed Jul 01, 2020 7:17 am
Forum: Advanced users
Topic: (solved) Can I modify the Raspberry Pi Zero to an Raspberry Pi Zero W ?
Replies: 14
Views: 535

Re: Can I modify the Raspberry Pi Zero to an Raspberry Pi Zero W ?

You need the hardware onboard so no way to do with a firmware update. No realistic way of adding it on board. You could I guess add a BT USB dongle but that would probably be more than just buying a new Pi ZeroW.
by RGJ-PI
Wed Jul 01, 2020 7:05 am
Forum: Beginners
Topic: download Raspbian Jessie OS
Replies: 12
Views: 371

Re: download Raspbian Jessie OS

Previous versions are available here..
http://downloads.raspberrypi.org/raspbian/archive/
by RGJ-PI
Wed Jul 01, 2020 5:58 am
Forum: Beginners
Topic: Powering Raspberry Pi with 12V power adapter a good idea?
Replies: 3
Views: 174

Re: Powering Raspberry Pi with 12V power adapter a good idea?

If you mean putting 12V into the PI power USB then really not a good idea at all. It will damage the main power supply chip pretty much instantly. If you have 12V devices you need to switch then you could either use a 12V supply with a 5V step down circuit for Pi power but as you say you are not com...
by RGJ-PI
Tue Jun 30, 2020 6:00 pm
Forum: Other projects
Topic: SATA/SAS connection over GPIO on RPI0?
Replies: 8
Views: 232

Re: SATA/SAS connection over GPIO on RPI0?

No. GPIO headers have neither the capability or speed to be used for disk based storage. USB3 on Pi4 is the best option. Are you sure you want to be using a Pi Zero for thsi?
by RGJ-PI
Fri Jun 26, 2020 10:34 am
Forum: Beginners
Topic: Raspberry pi turns on for a few seconds shuts down and then won't on again
Replies: 5
Views: 236

Re: Raspberry pi turns on for a few seconds shuts down and then won't on again

Which Adafruit Powerboost are you using? The Powerboost 1000 for instance only provides 1A at 5.2V. If you are running a backlit LCD and Adafruit Fona as well as the Pi then you're going to need more current capability than that. What happens if you swap a standard Pi PSU in place of the powerboost ...
by RGJ-PI
Wed Jun 24, 2020 10:22 am
Forum: General discussion
Topic: Why the quality of the vídeos is só poor
Replies: 2
Views: 142

Re: Why the quality of the vídeos is só poor

What type of videos are causing this? YouTube site? Other online video? If local content, what file format, resolution etc. Is it local to the Pi or accessed via a media server? We'll need more specific info to be able to help you.
by RGJ-PI
Wed Jun 24, 2020 9:31 am
Forum: Beginners
Topic: Creating a slate tab
Replies: 1
Views: 84

Re: Creating a slate tab

So if I have this correctly.. You want to take a laptop LCD panel and somehow connect it to a Samsung TV main board and then connect those to a Raspberry Pi??

Sorry to disappoint but It's about as far away from 'plug and play' as is possible to imagine! Not a chance of making it work.
by RGJ-PI
Tue Jun 23, 2020 1:41 pm
Forum: General discussion
Topic: Can you use an internal hard disk drive with raspberry pi 4b?
Replies: 2
Views: 158

Re: Can you use an internal hard disk drive with raspberry pi 4b?

Depends on the hard drive you intend to use. A 3.5" mechanical type, no unless you use a USB to SATA adaptor that has external power (to supply the 12V required). If a 2.5" mechanical then possibly, depends on the current requirements of the drive. A 2.5" SSD then almost certainly will be okay. Both...
by RGJ-PI
Thu Jun 18, 2020 12:28 pm
Forum: Troubleshooting
Topic: Raspberry pi 4 4gb magic smoke?
Replies: 3
Views: 156

Re: Raspberry pi 4 4gb magic smoke?

The part you've highlighted is an inductor on the 3V3 rail. If your Pi4 is still running then it hasn't gone open circuit so you've probably got away with it. If you have access to a multi-meter what is the Voltage on the 3V3 header pin? You mention you are using the Pi4 with a fan, is this a 5V fan...
by RGJ-PI
Thu Jun 18, 2020 7:22 am
Forum: Beginners
Topic: Help with Pi Zero W & Light Sensor Module
Replies: 3
Views: 112

Re: Help with Pi Zero W & Light Sensor Module

You would normally solder header pins and use socketed wire links to do this. Or you can just solder the wires directly.
One other important thing.. You've flipped the board over and are looking at the underside of the board so the pins you need are at the other end in this view!
by RGJ-PI
Thu Jun 18, 2020 7:05 am
Forum: Beginners
Topic: Pi official keyboard hub
Replies: 1
Views: 89

Re: Pi official keyboard hub

Unfortunately it sounds like your keyboard is faulty. Please don't attempt repair but return it to your supplier for replacement.
by RGJ-PI
Wed Jun 17, 2020 6:49 am
Forum: Beginners
Topic: Use HDMI as Monitor and DSI 3 inch touch screen as buttons
Replies: 4
Views: 162

Re: Use HDMI as Monitor and DSI 3 inch touch screen as buttons

Deleted duplicates and moved out of Official Foundation Display forum.
by RGJ-PI
Tue Jun 16, 2020 1:10 pm
Forum: General discussion
Topic: Documentation Tab Please
Replies: 6
Views: 271

Re: Documentation Tab Please

The Documentation pages are linked on opening the Help tab so probably easy enough to find I'd have thought?
by RGJ-PI
Fri Jun 05, 2020 11:06 am
Forum: Automation, sensing and robotics
Topic: [SOLVED] LM2596 buck converter to Pi 4 USB C
Replies: 6
Views: 383

Re: LM2596 buck converter to Pi 4 USB C

You could bypass the USB-C socket and wire directly to the GPIO Header 5V and Ground pins.
See pin-out here.. https://www.raspberrypi.org/documentation/usage/gpio/
by RGJ-PI
Thu May 28, 2020 1:55 pm
Forum: Beginners
Topic: PiCamera conectors
Replies: 2
Views: 126

Re: PiCamera conectors

The Camera ribbon cable connector data pins go straight to the main CPU. They are not shared by any GPIO pins.
by RGJ-PI
Wed May 20, 2020 12:06 pm
Forum: Automation, sensing and robotics
Topic: Cat door automation
Replies: 5
Views: 311

Re: Cat door automation

Unless I've misread it sounds like you are planning to have a powered full door opener? This sounds about as far from 'No permanent fixing to the door' as you can get?! But assuming you are okay fitting this type of door opener I'd be very careful about both security and safety issues. What if the c...
by RGJ-PI
Wed May 20, 2020 11:18 am
Forum: General discussion
Topic: Problem about posting
Replies: 9
Views: 289

Re: Problem about posting

rpibdluser you are only showing as having two posts (both on this thread). Can you post a link to the thread you had approved please. When moderating we often find duplicate first posts. Often they are identical but sounds like in your case the first was more detailed and was deleted as duplicate a...
by RGJ-PI
Tue May 19, 2020 2:21 pm
Forum: Troubleshooting
Topic: Raspberry pi 3B+ not turning on
Replies: 1
Views: 61

Re: Raspberry pi 3B+ not turning on

If you mean the three pin device next to test pad PP10 then it's a DMG1012T MOSFET. All that particular component does though is light the green Act LED so even with it missing that in itself wouldn't stop your board from booting. Though of course the lack of green flashes might make you think so if...
by RGJ-PI
Sat May 16, 2020 9:01 am
Forum: General discussion
Topic: Question about using a raspberry pi with a power bank
Replies: 4
Views: 261

Re: Question about using a raspberry pi with a power bank

I think the problem you'll find in this situation is that you're not able to monitor the actual battery Voltage of the power bank. The powerbank will be internally regulating the battery Voltage to 5V for its USB socket which won't (or shouldn't) noticeably change over the usage until the battery is...

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