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by Raspberry Paul
Wed Jul 03, 2019 1:29 pm
Forum: General discussion
Topic: Heatsinks official for rpi 4 ?
Replies: 44
Views: 4937

Re: Heatsinks official for rpi 4 ?

Pimoroni were saying their heat sinks only drop the CPU temp by 2 degrees.

I'm using their FanShim and it's dropped the temp by 30 degrees. Low profile and quiet.
https://shop.pimoroni.com/products/fan-shim
by Raspberry Paul
Wed Jan 02, 2019 3:14 pm
Forum: General discussion
Topic: Attach LED to show when OS is running (headless)
Replies: 5
Views: 283

Re: Attach LED to show when OS is running (headless)

On a standard built Pi you can attach an LED to GPIO14 (TX) pin to show when Linux is running. Seems to work reliably
by Raspberry Paul
Wed Dec 05, 2018 9:20 pm
Forum: General discussion
Topic: How to read weather station sensor over 433MHz?
Replies: 17
Views: 2691

Re: How to read weather station sensor over 433MHz?

Have a watch of this video - https://www.youtube.com/watch?v=L0fSEbGEY-Q
How to Hack your 433 MHz Devices with a Raspberry and a RTL-SDR Dongle

A £6 RTL-SDR Dongle might be money well spent.
by Raspberry Paul
Sun Dec 02, 2018 7:28 pm
Forum: General discussion
Topic: Is camera module really suitable for.24/7 streaming?
Replies: 16
Views: 1219

Re: Is camera module really suitable for.24/7 streaming?

Can a raspberry pi camera run 24 x 7? Yes

For a pre-built "security camera" type system look in to in to MotioEyes OS - https://github.com/ccrisan/motioneyeos
by Raspberry Paul
Sun Oct 07, 2018 12:07 pm
Forum: General discussion
Topic: where to buy rpi zero 1.3 for builing a cluster
Replies: 19
Views: 1497

Re: where to buy rpi zero 1.3 for builing a cluster

Try Pimoroni. They ship worldwide.
https://shop.pimoroni.com/products/raspberry-pi-zero

You'll have to place an order for one Zero per day.

Including P&P to UK, that would make each Pi Zero £7.16 which is still a fair bargain.
by Raspberry Paul
Fri Jul 20, 2018 5:59 pm
Forum: General discussion
Topic: We're looking at introducing more swag - what would you like to see?
Replies: 64
Views: 5734

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

Pencil case, Keyrings, pens, pencils, rulers, metal pin badges, hoodies, post-it's, water bottles etc etc
by Raspberry Paul
Wed Jul 18, 2018 8:03 am
Forum: General discussion
Topic: "Low depth" power supply
Replies: 15
Views: 1014

Re: "Low depth" power supply

I took the case off an old Blackberry USB wall adapter. Took an extension cord, cut the socket end off, soldered the blackberry power supply directly on to the cord, placed the power supply in a small "project box" drilled with a few ventilation holes. Been working a treat for 2 years. Have placed a...
by Raspberry Paul
Wed Mar 14, 2018 5:16 pm
Forum: General discussion
Topic: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE
Replies: 376
Views: 61350

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

mikerr wrote:
Wed Mar 14, 2018 3:25 pm
Has the FM tuner antenna pin been brought out on this model ?
On the pi3 it is buried in the bt/wifi chip.
No - still disconnected and unused
by Raspberry Paul
Wed Mar 14, 2018 1:36 pm
Forum: General discussion
Topic: New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE
Replies: 376
Views: 61350

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

Is the POE adapter actually available? I can't find it for sale anywhere and also can't find any pictures of it Raspi.tv says "new header connector (labelled PoE) which attaches to another new official Raspberry Pi product – a power over ethernet board. This board will be available on launch day" In...
by Raspberry Paul
Sun Dec 10, 2017 7:32 pm
Forum: General discussion
Topic: Reading ac mains current with sen0211 with adc mcp3008
Replies: 2
Views: 560

Re: Reading ac mains current with sen0211 with adc mcp3008

I've recently completed a project using the SCT-013-000 sensors. After weeks of trying to read the sensors using a raspberry pi and an mcp3008 (also an MCP3424 ) I gave up and used an arduino nano clone (about $2). The Nano was working within hours using simple code. I then connected the Nano to the...
by Raspberry Paul
Fri Jun 30, 2017 5:52 pm
Forum: General discussion
Topic: Pi Zero now available in multiples !
Replies: 15
Views: 3338

Re: Pi Zero now available in multiples !

There's an article in MagPi Magazine issue 59. Online retailer Pi Supply (pi-supply.com) has released a Raspberry Pi Zero W with a GPIO header. .... We wondered who was doing all the laborious soldering: “For the first 100 units, we did these by hand between four of us… we have now outsourced it to ...
by Raspberry Paul
Tue May 02, 2017 4:05 pm
Forum: General discussion
Topic: 10 Segment LED bar?
Replies: 5
Views: 1625

Re: 10 Segment LED bar?

You could always reverse engineer Adafruits controller. Think it's all open source

https://www.adafruit.com/product/1721
by Raspberry Paul
Tue Apr 11, 2017 6:59 pm
Forum: General discussion
Topic: Turning on Zero W every hour
Replies: 46
Views: 11843

Re: Turning on Zero W every hour

Adafruit have developed a break out board using a TPL5110 that allows power "cycles". Seems ideal for this kind of scheduled power up and down. I'm just put off by high postage to uk. Waiting for Pimoroni to stock it. https://blog.adafruit.com/2017/03/09/new-product-adafruit-tpl5110-low-power-timer-...
by Raspberry Paul
Wed Jan 18, 2017 3:53 pm
Forum: General discussion
Topic: I2C and 1-wire
Replies: 2
Views: 844

Re: I2C and 1-wire

by Raspberry Paul
Tue Dec 27, 2016 10:14 am
Forum: General discussion
Topic: What Issues could I have with grounded power supply
Replies: 3
Views: 1068

Re: What Issues could I have with grounded power supply

Another vote for the Anker 5 port USB power supply. I'm running 2 of them with 8 Pi's between them.
https://www.amazon.co.uk/gp/product/B00 ... UTF8&psc=1
£17.99

Also make sure you use decent USB cables.
by Raspberry Paul
Wed Dec 21, 2016 1:42 pm
Forum: General discussion
Topic: PCB Design Software and Small Qty Manufacturing
Replies: 10
Views: 1922

Re: PCB Design Software and Small Qty Manufacturing

I use Fritzing for PCB design and Seeed Studio for the PCB manufacture. Fritzing is often used to create the images you see in magazines. Looked in to UK based PCB manufacture and they're expensive. Seedstudio is $9.99 for 10 x 10cm x 10cm 2 layer PCB's taking about 3 weeks to arrive in UK. UK manuf...
by Raspberry Paul
Wed Dec 07, 2016 9:31 pm
Forum: General discussion
Topic: Suppliers making no margin?
Replies: 20
Views: 2855

Re: Suppliers making no margin?

RS have a bulk Pi page http://uk.rs-online.com/web/c/?searchTerm=raspberry-pi-bulk-0816_uk&searchType=Offers&dr=N Pi 3 - £25.99 each for a box of 150 + vat (versus £29.99 for 1) B+ - £20 each for 150 + vat I've bought a few Pi Zeros from Pimoroni. On 2 occasions I've ended up spending over £100 on o...
by Raspberry Paul
Tue Aug 02, 2016 7:10 pm
Forum: General discussion
Topic: A+ shortage?
Replies: 14
Views: 2292

Re: A+ shortage?

Magpi Magazine, August 2016, page 10
...explains Raspberry Pi Trading CEO Eben Upton. "They are required to keep the product in stock"
I had to wait 2 months for new B+'s from RS. Doesn't look like they're meeting the terms of their licence.
by Raspberry Paul
Tue Jul 05, 2016 9:52 am
Forum: General discussion
Topic: Problems with LCD 16x2 and Adafruit CharLCD library on Raspb
Replies: 9
Views: 4123

Re: Problems with LCD 16x2 and Adafruit CharLCD library on R

the LCD screen is showing only one line as filled black boxes. This is normal when switching your pi on. Are you using the Adafruit LCD + keypad kit as below or just straight LCD to pi? https://learn.adafruit.com/adafruit-16x2-character-lcd-plus-keypad-for-raspberry-pi/overview If using the adafrui...
by Raspberry Paul
Sun Jul 03, 2016 6:32 pm
Forum: General discussion
Topic: Breadboard Friendly Raspberry Zero
Replies: 9
Views: 2342

Breadboard Friendly Raspberry Zero

Here's my solution for creating a breadboard friendly Raspberry Pi Zero. I used 4 x 10 way 90 degree headers bought from ebay. The headers on one side of the Zero are placed normally, and on the other side there placed upside down. The easiest way to solder them was to place them through the zero ho...
by Raspberry Paul
Sat Jun 11, 2016 3:20 pm
Forum: General discussion
Topic: Relay board with opto isolator connection
Replies: 6
Views: 3592

Re: Relay board with opto isolator connection

Is the transistor required anyway?

I have a similar relay board being driven directly from a Pi Zero GPIO. The relay board is driven from the 5v line on the pi.
by Raspberry Paul
Wed Jun 08, 2016 5:58 pm
Forum: General discussion
Topic: PI Zero Wish/Suggestion
Replies: 20
Views: 2607

Re: PI Zero Wish/Suggestion

I think Pimorni were talking about selling the Zero with soldered headers. They were going to solder them on themselves.
by Raspberry Paul
Tue Jun 07, 2016 7:12 pm
Forum: General discussion
Topic: Where are all the Pi's?
Replies: 17
Views: 2505

Re: Where are all the Pi's?

At similar price, why use a B+ when pi2 is exact same form factor RS quoting price of £18.23 for B+ and £24.50 for Pi2, a difference of £6.27. That's 34% more expensive to buy a 2 than a B+ (excludes VAT) Add to that RS not expecting Pi 2 till 28th August versus 7th July for B+ Thanks to this threa...
by Raspberry Paul
Sun May 29, 2016 12:21 pm
Forum: General discussion
Topic: FsWebcam "Unable to find compatible palette format."
Replies: 6
Views: 2242

Re: FsWebcam "Unable to find compatible palette format."

I've had the same issue and spent many days on it. Make sure Raspbian is fully updated sudo apt-get update sudo rpi-update sudo apt-get -y dist-upgrade sudo apt-get update That works sometimes. In the end I bought a more expensive webcam that doesn't seem to have the issue - Logitech QuickCam Pro 9000
by Raspberry Paul
Tue Apr 12, 2016 6:34 pm
Forum: General discussion
Topic: PiZero Roadmap
Replies: 159
Views: 62789

Re: PiZero Roadmap

So the circuit board is being redesigned to allow automated testing by Sony. So we're talking about a simple cost neutral change to the main circuit board only. My guess would be an audio breakout similar to the current video breakout. That would be cost neutral seeing as the main board is already b...

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