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by piglet
Mon Jun 10, 2019 8:29 am
Forum: HATs and other add-ons
Topic: TV Hat - multiple channels?
Replies: 6
Views: 437

Re: TV Hat - multiple channels?

rpdom wrote:
Mon Jun 10, 2019 8:18 am
I could record/watch up to 24 channels at the same time. That was several years ago.
What sort of spider are you? I thought most "only" had eight eyes. 3 channels per eye?
by piglet
Wed May 15, 2019 10:58 am
Forum: Off topic discussion
Topic: is the pi worth it?
Replies: 103
Views: 6641

Re: is the pi worth it?

*tries and fails to resist any posting of Pi4* Well, if Pi4 comes with significantly more processing power and backwards capability then it opens up a massive additional market for low power desktop use for which the 3B+ struggles, while keeping everyone in the current market (possibly other than th...
by piglet
Wed May 08, 2019 3:26 pm
Forum: Off topic discussion
Topic: Are humourous signatures allowed on this foum?
Replies: 12
Views: 925

Re: Are humourous signatures allowed on this foum?

It's really hard to speak normally now a days without someone listening in being offended. I have no idea how one would make an acceptable joke. You really shouldn't mention "speak", as it may offend people who do not speak. Here we go: "A person, another person and yet a another person entered an ...
by piglet
Tue May 07, 2019 2:26 pm
Forum: Compute Module
Topic: Some CM3's not booting
Replies: 5
Views: 387

Re: Some CM3's not booting

Just a guess, but when seeing this sort of thing with other Pi's it was that the o/s being loaded didn't have the configuration for newer memory chips. As new chips get sourced the latest rasbian gets patched Do the non-booting ones have different pop memory model to the working ones? edit: https://...
by piglet
Fri Feb 22, 2019 3:49 pm
Forum: General discussion
Topic: Why must the raspberrypi be so proprietary?
Replies: 44
Views: 2314

Re: Why must the raspberrypi be so proprietary?

I'm pretty sure you can't. Do you know how to source storage media to boot from which hasn't got closed source firmware on it?
by piglet
Wed Feb 06, 2019 11:08 pm
Forum: Troubleshooting
Topic: sudo reboot halts....for ages...what now?
Replies: 3
Views: 251

Re: sudo reboot halts....for ages...what now?

After an upgrade it now tells me what the "problem" is on restart:

[***] A stop job is running for Fail2Ban Service (2min 5s / 3min)

Perhaps related to : https://github.com/fail2ban/fail2ban/issues/1588

I have my pi exposed to the internet....it gets a LOT of attempts...
by piglet
Wed Feb 06, 2019 9:47 pm
Forum: Beginners
Topic: Is 5V 1A enough for Raspberry Pi 3 B+
Replies: 9
Views: 778

Re: Is 5V 1A enough for Raspberry Pi 3 B+

It's not enough for a 3B+

This may help: https://www.raspberrypi.org/documentati ... /README.md

[Edit that page is out of date]

https://www.raspberrypi.org/forums/view ... p?t=208110
by piglet
Tue Feb 05, 2019 8:10 pm
Forum: Troubleshooting
Topic: sudo reboot halts....for ages...what now?
Replies: 3
Views: 251

sudo reboot halts....for ages...what now?

Hi I need to do a restart so I do "sudo reboot" on my Pi - but it just sits there saying: [ OK ] Removed slice User Slice of pi [ OK ] Stopping Permit User Sessions [ OK ] Stopped triggerhappy global hotkey daemon [ OK ] Stopped Login Service [ OK ] Started Plymouth Reboot Screen [ OK ] Stopped Perm...
by piglet
Fri Jan 18, 2019 3:52 pm
Forum: General discussion
Topic: new to soldering - safety questions, etc.
Replies: 46
Views: 2101

Re: new to soldering - safety questions, etc.

I did that with my first cheapie soldering iron to try and clean it - and it got eaten away next time I used it.

Replaced with a Weller at a good price on Ebay and very happy.

Does anyone know of a good cheap source of solder? My last roll was expensive and came from Maplin... shows how much I use!
by piglet
Fri Dec 14, 2018 4:46 pm
Forum: General discussion
Topic: Raspberry pi as a local network
Replies: 3
Views: 254

Re: Raspberry pi as a local network

Why not run an mqtt server on the pi and connect the node-mcu's to that. That's what I'm using at home - node-mcu's and pi's controlling all the christmas lights...with connectivity back to a master pi. What the master pi does with the info is up to you. Something along these lines: https://www.bald...
by piglet
Fri Dec 14, 2018 4:23 pm
Forum: Off topic discussion
Topic: More printing on the Pi bottom please
Replies: 17
Views: 2855

Re: More printing on the Pi bottom please

An annoyance which could be solved by a little more wording on the PCB. Sounds like a reasonable request.

Shame the GPIOs can't be labelled too...
by piglet
Wed Nov 28, 2018 9:51 pm
Forum: Other projects
Topic: Controlling Christmas lights of different voltages - common ground OK?
Replies: 6
Views: 1617

Re: Controlling Christmas lights of different voltages - common ground OK?

Yuup. It works with the extra 5v supply, common ground. All the hardware is working as intended.

Now to complete the code.
by piglet
Wed Nov 28, 2018 3:30 pm
Forum: Other projects
Topic: Controlling Christmas lights of different voltages - common ground OK?
Replies: 6
Views: 1617

Re: Controlling Christmas lights of different voltages - common ground OK?

Thanks, Yes, I'm switching at the ground end on the led strip. I had come to the conclusion that I did have to make a common ground. Otherwise there's no way for the MOSFET to know when the Pi GPIO signal is high or low as that can only be by reference to the ground. Learning stuff all the time. I l...
by piglet
Wed Nov 28, 2018 12:00 pm
Forum: Other projects
Topic: Controlling Christmas lights of different voltages - common ground OK?
Replies: 6
Views: 1617

Controlling Christmas lights of different voltages - common ground OK?

I'm currently using some IRLB8721 MOSFETs off three GPIOs to control a 12v led strip. The 12v supply's ground is connected to the Pi's ground. Sort of like this, but using a Pi (this is the clearest wiring diagram I could find): https://learn.adafruit.com/rgb-led-strips/usage If I want to add into t...
by piglet
Tue Nov 20, 2018 9:54 pm
Forum: Advanced users
Topic: Broken Gpio
Replies: 13
Views: 1960

Re: Broken Gpio

You've not given enough detail for anyone to assist you.

It would help if you posted the schematic you're using.
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: 1043

"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: 805

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: 805

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: 1070

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: 16922

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: 1849

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: 4598

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: 4598

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.

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