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by piglet
Fri Oct 05, 2018 10:34 am
Forum: General discussion
Topic: "Unfortunately, I do not have a scope, nor does anybody I know."
Replies: 12
Views: 473

"Unfortunately, I do not have a scope, nor does anybody I know."

Unfortunately, I do not have a scope, nor does anybody I know. The only tool I do have, is a digital multimeter my uncle gave me. I read this today and I totally relate to it. Any time I try and build something and run in to problems I do a search on the internet... Actually, I should rephrase that...
by piglet
Fri Sep 28, 2018 10:25 pm
Forum: Other projects
Topic: Lookign for some advise on best way to proceed - synchronisation/remote control
Replies: 5
Views: 189

Re: Lookign for some advise on best way to proceed - synchronisation/remote control

MQTT is new to me. Wow! It sure makes life easy for you to get connectivity. Thanks for the recommendation. That lets me concentrate on getting the functionality I need rather than messing about with socket programming like I thought I might have to. https://www.dropbox.com/s/rxdj9qw1qgsr0lk/mqtt.JP...
by piglet
Fri Sep 28, 2018 2:07 pm
Forum: Other projects
Topic: Lookign for some advise on best way to proceed - synchronisation/remote control
Replies: 5
Views: 189

Lookign for some advise on best way to proceed - synchronisation/remote control

Hi, I have a server raspberry pi (3b). It has a lot of things running on it including a web server. I have some Perl scripts on the server providing a UI to the settings on remote hardware The remote hardware is a range of other things - Raspberry Pi, ESP32 and ESP8266 which periodically poll a Perl...
by piglet
Mon Aug 20, 2018 1:21 pm
Forum: Beginners
Topic: can't boot PI3 after dropping the heat sink onto the board by accident
Replies: 16
Views: 459

Re: can't boot PI3 after dropping the heat sink onto the board by accident

You and your son have our sympathy. If re-flashing the sd card doesn't help it's likely there's nothing to be done but to replace the board. I doubt there's anyone here who's done much with electronics who hasn't had an accident at some point which has broken something. I made my once-only mistake w...
by piglet
Mon Aug 20, 2018 1:11 pm
Forum: Off topic discussion
Topic: What was your 1st game?
Replies: 49
Views: 13247

Re: What was your 1st game?

"Skiing" game - typed in line by line from a paper magazine to a 1K ZX81 machine. You had to "steer" the blob left and right through a series of blobs marking a ski course by pressing left and right buttons. Quickly followed by "let's see how I can change the code to make it more fun". There was no ...
by piglet
Mon Jul 23, 2018 3:20 pm
Forum: General discussion
Topic: Wifi adapter that actually works out of the box
Replies: 9
Views: 1433

Re: Wifi adapter that actually works out of the box

Official Raspberry Pi WiFi dongle https://www.raspberrypi.org/products/usb-wifi-dongle/ and Edimax N150/EW-7811UN (RTL8188CUS chipset) Your link doesn't work. Try: https://www.raspberrypi.org/products/raspberry-pi-usb-wifi-dongle/ Which is supposed to direct you to http://uk.rs-online.com/web/gener...
by piglet
Mon Jul 23, 2018 1:19 pm
Forum: General discussion
Topic: We're looking at introducing more swag - what would you like to see?
Replies: 62
Views: 2479

Re: We're looking at introducing more swag - what would you like to see?

T shirts less garish, with logo not central but to the left; possibly more likely to appeal to the less extrovert, which to be honest is probably more the market here!
by piglet
Mon Jul 23, 2018 10:09 am
Forum: General discussion
Topic: We're looking at introducing more swag - what would you like to see?
Replies: 62
Views: 2479

Re: We're looking at introducing more swag - what would you like to see?

How about a soft raspberry pi rainbow unicorn? ...they come up every time someone mentions Pi 4+ so would be nice to be able to buy one.
by piglet
Thu Jul 19, 2018 1:54 pm
Forum: Troubleshooting
Topic: Pi Zero woes
Replies: 2
Views: 167

Re: Pi Zero woes

1) Why an OTG adapter?

2) Try the latest raspbian rather than noobs
by piglet
Mon Jul 16, 2018 8:34 am
Forum: Automation, sensing and robotics
Topic: Is it possible to read the value of a UK dimmer switch with Raspberry Pi?
Replies: 21
Views: 802

Re: Is it possible to read the value of a UK dimmer switch with Raspberry Pi?

Sounds to me like the OP is asking whether a dimmer switch can be used as/like a rotary encoder; not necessarily anything to do with mains voltages (I sure hope)
by piglet
Thu Jul 12, 2018 10:28 am
Forum: General discussion
Topic: Thinking of writing a technical FAQ
Replies: 53
Views: 1708

Re: Thinking of writing a technical FAQ

Which FAQ area are you thinking about adding to? A new technical faq at the root of the docs tree. I'm sure this must be very familiar to you - but I've never seen this before. It's not easily found by any new person likely to need to know the information. I can't see any mention of "github" on the...
by piglet
Tue Jul 10, 2018 1:28 pm
Forum: General discussion
Topic: Thinking of writing a technical FAQ
Replies: 53
Views: 1708

Re: Thinking of writing a technical FAQ

Which FAQ area are you thinking about adding to?

The only obvious one is the main site "help" area https://www.raspberrypi.org/help/

or, possibly if you get as far as here the forum FAQ one: app.php/help/faq
by piglet
Mon Jul 09, 2018 8:09 am
Forum: Troubleshooting
Topic: Power through 5v GPIO
Replies: 3
Views: 167

Re: Power through 5v GPIO

However doing that you will bypass the polyfuse that gives you a certain amount of protection.
by piglet
Fri Jun 29, 2018 3:01 pm
Forum: Automation, sensing and robotics
Topic: Anti-mosquito laser turret - requesting circuit design help
Replies: 28
Views: 9045

Re: Anti-mosquito laser turret - requesting circuit design h

Killing mosquitoes one by one is surely more ecological than the Swedish invention to put a small layer of oil on top of your grill and leave it on a low temperature for the night. It kills mosquitoes by the thousands every night. They get attracted to heat and carbon dioxide. http://www.svtstatic....
by piglet
Thu Jun 28, 2018 8:49 am
Forum: General discussion
Topic: Forum : google analytics - grinding to a halt
Replies: 18
Views: 894

Re: Forum : google analytics - grinding to a halt

I was more concerned about the fact it's causing pages not to load and general slowness. My question was why is this script even on the page? Someone said to block the script. I've now added it to adblock plus - but I have a feeling I did this before and it caused problems on other sites. [edit] Tha...
by piglet
Wed Jun 27, 2018 3:15 pm
Forum: General discussion
Topic: Forum : google analytics - grinding to a halt
Replies: 18
Views: 894

Forum : google analytics - grinding to a halt

It's making the forum grind to a halt on my PC. Why does it need to be there? <script> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parent...
by piglet
Tue Jun 19, 2018 10:15 am
Forum: Other projects
Topic: Installing an Adafruit's PDM MEMS Microphone on a Raspberry Pi 3 in order to study the behaviour of bees in a hive
Replies: 2
Views: 255

Re: Installing an Adafruit's PDM MEMS Microphone on a Raspberry Pi 3 in order to study the behaviour of bees in a hive

You didn't say which you've got. I2S needs some work to get going.

See: https://learn.adafruit.com/adafruit-i2s ... g-and-test

If it's a different board, then you may need to use other instructions!
by piglet
Mon Jun 18, 2018 12:39 pm
Forum: General discussion
Topic: Max Amps?
Replies: 10
Views: 620

Re: Max Amps?

I never know how you're supposed to make supplies like that safe. You'd have thought it was easy but took a lot of looking for an enclosure when I got one, and it was was fugly and cost more than the actual transformer....
by piglet
Mon Jun 18, 2018 8:16 am
Forum: Beginners
Topic: Binary Blob?
Replies: 6
Views: 461

Re: Binary Blob?

It's basically the bits that other manufactures also have - but shove into firmware areas of their hardware so it's not so obvious. It's nothing to worry about.
by piglet
Wed Jun 13, 2018 3:47 pm
Forum: Raspbian
Topic: Raspbian + Pi3B+ = low voltgae warning?
Replies: 4
Views: 410

Re: Raspbian + Pi3B+ = low voltgae warning?

alphanumeric wrote:
Wed Jun 13, 2018 2:50 pm
Power supply is 5V at 10A.
See comments here

Most likely the cable, or the supply not really being what it says it is.
by piglet
Mon Jun 11, 2018 12:52 pm
Forum: Off topic discussion
Topic: The Case for the Pi3A+
Replies: 103
Views: 15899

Re: The Case for the Pi3A+

any new A+ is quite a way away. Like, a REALLY long way Good. I'll embed zeroes into things that don't need ethernet. However I'd (will) happily replace several Pi's with a more powerful 4B/5B/6B model as soon as it's available, and I suspect that many many others would immediately drop their 3's f...
by piglet
Mon May 21, 2018 3:49 pm
Forum: Beginners
Topic: Using RPI for searching in huge .txt
Replies: 22
Views: 722

Re: Using RPI for searching in huge .txt

grep's fine for easily-defined problems like a phone directory, but big text searches benefit from an engine like Lucene . It brings typo-tolerant searches, ranking, search ranges, searching while updating, … none of which grep does well, if even at all. Ahh - but Lucene doesn't produce nice graphs...
by piglet
Mon May 21, 2018 1:42 pm
Forum: General discussion
Topic: Keep Private Messaging function, please help and post
Replies: 21
Views: 943

Re: Keep Private Messaging function, please help and post

For example a user makes a big mistake in his tutorial, but has done a great Job. I don't want to blame him in front of all other users, so I send him a PM. I've done this over the weekend, and the tutorial was updated. Also used to help someone and get help related to on-topic things which couldn'...
by piglet
Mon May 21, 2018 1:01 pm
Forum: Beginners
Topic: Using RPI for searching in huge .txt
Replies: 22
Views: 722

Re: Using RPI for searching in huge .txt

If you know that the character strings making up the codes cannot appear anywhere else in the file you can do this: grep 10457 filename or to look for a list of known values: grep -E "10457|22222|33333" filename However if those codes could exist elsewhere in the lines where you don't want to look (...

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