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by KevinSwansea
Mon Jul 01, 2019 3:44 pm
Forum: Automation, sensing and robotics
Topic: The Integrated Cat Flap : Pi Zero
Replies: 24
Views: 7005

Re: The Integrated Cat Flap : Pi Zero

It looks like something similar has been done by an Amazon engineer, just published on the BBC news site "Cat flap uses AI to punish pet's killer instincts".

According to the BBC they are happy linking to their stories so the link is: https://www.bbc.co.uk/news/technology-48825761
by KevinSwansea
Fri Aug 03, 2018 8:01 am
Forum: General discussion
Topic: Build your own NASA Rover using a Raspberry Pi
Replies: 5
Views: 377

Re: Build your own NASA Rover using a Raspberry Pi

I see that this finally got picked up by the website several hours after I had posted details here and while 50+ people had a look, nobody seemed interested enough to comment.
by KevinSwansea
Thu Aug 02, 2018 7:40 am
Forum: General discussion
Topic: Build your own NASA Rover using a Raspberry Pi
Replies: 5
Views: 377

Build your own NASA Rover using a Raspberry Pi

Morning all, The Register published an article that NASA have released detailed plans for a 1/6 scale Rover based on Curiosity and open sourced them: https://www.theregister.co.uk/2018/08/02/nasa_open_source_rover/ NASA have chosen to use a Raspberry Pi as the default controller for the Rover, it lo...
by KevinSwansea
Wed Jul 04, 2018 1:33 pm
Forum: Windows 10 for IoT
Topic: Isn't this in the wrong place?
Replies: 7
Views: 1311

Re: Isn't this in the wrong place?

I seem to recall it being under Operating Systems previously, I came looking for the IoT information, didn't find it and then the search pointed me into Other Programming Languages, I just thought it seemed a little illogical. I'm considering re-flashing my Pi3 to IoT and have a play with writing a ...
by KevinSwansea
Wed Jul 04, 2018 12:54 pm
Forum: Windows 10 for IoT
Topic: Isn't this in the wrong place?
Replies: 7
Views: 1311

Isn't this in the wrong place?

Shouldn't the Windows 10 for IoT section be under Operating Systems rather than Other Programming Languages, since this is an Operating System? Perhaps other programming languages could include a section for using Visual Studio 2017 for developing apps for Windows 10 IoT on Raspberry Pi? Regards Kevin
by KevinSwansea
Mon Jun 18, 2018 10:56 pm
Forum: General discussion
Topic: Power for stacking Pi's
Replies: 21
Views: 3076

Re: Power for stacking Pi's

You could even get some motherboard header to USB plates, pins 1 & 2 on each connector is +5V and pins 7 & 8 are ground, wiring these up appropriately to the PSU with screw terminals would convert the output from the PSU to standard USB so you can use normal USB to microUSB cables to power the Pi’s....
by KevinSwansea
Mon Jun 18, 2018 10:20 pm
Forum: General discussion
Topic: Power for stacking Pi's
Replies: 21
Views: 3076

Re: Power for stacking Pi's

Theoretically you could run 5V+ and ground to a screw terminal block from the PSU and run the +ve and ground wires from a number of cut USB cables to the other in a one to many relationship. As it’s possible to power 24 Pi’s from 60Amp, you could have an 8 to 1 ratio (8 USB to 1 5V feed from the PSU...
by KevinSwansea
Mon Jun 18, 2018 7:00 pm
Forum: General discussion
Topic: Power for stacking Pi's
Replies: 21
Views: 3076

Re: Power for stacking Pi's

A quick search on Amazon got this: https://www.amazon.co.uk/Switching-Transformer-Surveillance-Industrial-Automation/dp/B01JLYWBUC/ref=mp_s_a_1_4?ie=UTF8&qid=1529348087&sr=8-4&pi=AC_SX236_SY340_QL65&keywords=5v+60a+power+supply&dpPl=1&dpID=41T4v6X8qFL&ref=plSrch It’s a Joynano 5V 60Amp switching pow...
by KevinSwansea
Mon Jun 11, 2018 8:55 am
Forum: Networking and servers
Topic: Using a TFX power supply for a six Pi server
Replies: 4
Views: 706

Re: Using a TFX power supply for a six Pi server

You may find one of these a good option to convert a PSU into a bench supply: http://retroelectronik.com/en/accueil/148-2420-pin-atx-computer-pc-power-supply-bench-top-power-board-module-adapter.html Depending on the amps available on the 5V rail, it should power multiple Pi's, there are 6 x +5V scr...
by KevinSwansea
Wed Mar 14, 2018 1:08 pm
Forum: General discussion
Topic: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE
Replies: 376
Views: 61187

Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Could the 4 PoE pins be used as a method to connect a barrel-type connector to the Pi Nope. On these pins the 'power' provided by an Ethernet cable is fed to the PoE HAT where some circuitry sits to negotiate a PoE supply with the switch (see starting from 'Stages of powering up a PoE link' ). Then...
by KevinSwansea
Wed Mar 14, 2018 11:47 am
Forum: General discussion
Topic: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE
Replies: 376
Views: 61187

Re: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

Could the 4 PoE pins be used as a method to connect a barrel-type connector to the Pi (still providing 5V @ 2.5A), rather than using the micro-USB, is there a fuse between the pins and the rest of the Pi hardware?
by KevinSwansea
Thu Jan 11, 2018 9:05 am
Forum: General discussion
Topic: Powering multiple Pi3's for a cluster (concept)
Replies: 2
Views: 472

Re: Powering multiple Pi3's for a cluster (concept)

$300 does look a little steep, you can get them for £62 in the UK (some places even cheaper) and $65 on eBay from what I've seen though and at that price it seems more worthwhile. I did look at converting a PC PSU to power multiple Pi's, you could use a 200W PSU and just take a 5V feed off to a numb...
by KevinSwansea
Thu Jan 11, 2018 8:41 am
Forum: General discussion
Topic: Powering multiple Pi3's for a cluster (concept)
Replies: 2
Views: 472

Powering multiple Pi3's for a cluster (concept)

As there seems to be quite some interest in Bramble clusters, I started looking at how you would power multiple Pi3's without a rats nest of cables. Has anyone tried the Orico 120W 10 port charging station (http://www.orico.cc/goods.php?id=6379), it looks like it can provide 2.4A to each port (5V x ...
by KevinSwansea
Thu Jan 11, 2018 7:54 am
Forum: Official Foundation Display
Topic: Low Voltage Indicator
Replies: 6
Views: 4823

Re: Low Voltage Indicator

I had problems with the CanaKit supply and low voltage indicator on the touchscreen, both when trying to power the Pi3 from USB from the display board or by using the GPIO pin method. In the end I went out and bought a dual port USB charger. The one I bought had a USB-C and USB-A port and was 4.8Amp...
by KevinSwansea
Sun Jan 07, 2018 10:39 pm
Forum: Troubleshooting
Topic: Official Pi Touchscreen Unable to Properly Power Pi
Replies: 21
Views: 8014

Re: Official Pi Touchscreen Unable to Properly Power Pi

Well I picked up a USB power adapter from Maplin Electronics today, it has a USB-A and a USB-C port with the USB-C rated up to 3A. Powering the screen from USB-A and the Pi from USB-C works fine, just need to tidy the cables so they act as a single cable rather than 2 separate ones now.
by KevinSwansea
Sat Jan 06, 2018 6:29 pm
Forum: Troubleshooting
Topic: Official Pi Touchscreen Unable to Properly Power Pi
Replies: 21
Views: 8014

Re: Official Pi Touchscreen Unable to Properly Power Pi

It’s just a shame as it would be so much neater to power the whole thing from a single cable, i’ll Have to get one of those dual USB chargers, a 1A port for the screen and a 2.4A for the Pi.
I wonder if heat shrink sheathing would be a good idea to keep the cables together?
by KevinSwansea
Fri Jan 05, 2018 10:39 pm
Forum: Troubleshooting
Topic: Official Pi Touchscreen Unable to Properly Power Pi
Replies: 21
Views: 8014

Re: Official Pi Touchscreen Unable to Properly Power Pi

I’m having a similar issue, my partner bought me a Canakit Pi 3 starter kit for Christmas, I then bought the official Raspberry Pi 7” Touchscreen and a case to link enclose it all. I purchased a short (20cm) flat USB cable from PC World (Goji brand) and routed it from the touchscreen USB port betwee...

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