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by PhatFil
Wed Jul 31, 2019 7:40 pm
Forum: Beginners
Topic: Remote control of networked Pi's
Replies: 5
Views: 206

Re: Remote control of networked Pi's

Check out node red as a tool to distribute and respond to mqtt publications on your pi es.. its got a nice drag n drop gui interface that lets you build your system logic into execution flows, it can take a bit of 'getting the hang of' but is well packaged with good learning resources on the nodered...
by PhatFil
Wed Jul 31, 2019 7:32 pm
Forum: Beginners
Topic: Need help mapping out multiple things to Raspberry Pi
Replies: 5
Views: 171

Re: Need help mapping out multiple things to Raspberry Pi

Just a thought or 2,, if using an ultrasonic mister it probably uses an AC psu powered by mains power. for such a device you may find it a lot easier to use an off the shelf smart wifi power socket to turn on/off as you can mod many of these to respond to wifi/mqtt commands issued directly from your...
by PhatFil
Wed Jul 31, 2019 7:13 pm
Forum: General discussion
Topic: how much is the 4b where you live?
Replies: 12
Views: 507

Re: how much is the 4b where you live?

£10 overpriced
$55 =(at time of posting) £45 Not £55..

:mrgreen:
by PhatFil
Wed Jul 31, 2019 6:59 pm
Forum: Beginners
Topic: 5V Solutions for Multiple Sensors w/o Breadboard
Replies: 4
Views: 139

Re: 5V Solutions for Multiple Sensors w/o Breadboard

As i find it easy to use dupont wires to connect up Pi/sbc dev boards to modular sensors and components i tend to make bus bars for 5v 3.3v and gnd inside my project boxes made from strips of male header pins with the bottoms all soldered together, wrapping the short legs with some stripped stranded...
by PhatFil
Wed Jul 31, 2019 6:15 pm
Forum: Français
Topic: led ikea
Replies: 8
Views: 450

Re: led ikea

bonjour, j'ai acheté ce produit chez ikea. https://www.ikea.com/be/fr/p/norrfly-baguette-lumineuse-led-couleur-aluminium-60332252/ J'aimerais le relier au raspberry. Je n'ai jamais encore joué avec les leds et les pin... Comment faire? est-ce faisable? quels pin utiliser? quelle systeme utiliser? M...
by PhatFil
Wed Jul 31, 2019 9:19 am
Forum: Beginners
Topic: Automatic wireless from PC to RPI file transfer
Replies: 1
Views: 90

Re: Automatic wireless from PC to RPI file transfer

the keyword for your searches is 'FTP' for File Transfer Protocol.
depends on if you want the pc or Pi to steer.
https://www.newth.net/mars/how-to-set-u ... r-via-ftp/
https://winscp.net/eng/docs/guide_automation
by PhatFil
Wed Jul 31, 2019 8:57 am
Forum: Python
Topic: How do i display incoming serial data on 20x4lcd?
Replies: 5
Views: 256

Re: How do i display incoming serial data on 20x4lcd?

Find a couple of basic example projects 1 using a 20x4 lcd display, and another that reads serial input. Python projects and examples would probably be the easiest to find and follow. Ypu may find something VERY close to what you want too ;) With 2 x example projects you can study and learn how the ...
by PhatFil
Wed Jul 31, 2019 8:42 am
Forum: General discussion
Topic: Servers Power Consumption
Replies: 4
Views: 246

Re: Servers Power Consumption

anything you install to run as a service will by definition will require some processing power to start and set up, what it does while not responding to requests may or may not require additional time/power to execute depending on just what it is. A home automation server will no doubt gather and re...
by PhatFil
Tue Jul 30, 2019 11:28 am
Forum: Troubleshooting
Topic: [solved] Connecting Pi bluetooth to Arduino and HC-05
Replies: 10
Views: 291

Re: Connecting Bluetooth to Arduino and HC-05

gordon77 wrote:
Tue Jul 30, 2019 11:10 am
Thanks I've tried this one, bluez not available?
then install it..
sudo apt-get install bluetooth bluez
entered at the cli should do it..
by PhatFil
Tue Jul 30, 2019 11:07 am
Forum: Troubleshooting
Topic: [solved] Connecting Pi bluetooth to Arduino and HC-05
Replies: 10
Views: 291

Re: Connecting Bluetooth to Arduino and HC-05

Bluetooth provides a couple of communication methods, probably the easiest to use is serial over bluetooth connection. This came up searching for the keywords 'arduino bluetooth serial pi' http://www.uugear.com/portfolio/bluetooth-communication-between-raspberry-pi-and-arduino/ check the arduino lib...
by PhatFil
Sat Jul 27, 2019 7:17 pm
Forum: General discussion
Topic: Pi4 Cooling
Replies: 118
Views: 10468

Re: Pi4 Cooling

And running it for 1h11m the highest temperature is 73'C. Highest temperature on the case is 47'C. 73'C sounds pretty close to 80C when i understand throttling will start. What happens after a few hours of watching hi-def video or browsing add and clickbait covered social media pages if its hitting...
by PhatFil
Fri Jul 26, 2019 10:52 pm
Forum: Beginners
Topic: Audio Reactive Led Strip
Replies: 2
Views: 101

Re: Audio Reactive Led Strip

the ground is the common negative terminal for all your gpio circuitry.

you ensure that you have a common ground reference when using power from different sources for your pi and any devices it controls by connecting all the grounds together .

When in doubt ask..
by PhatFil
Fri Jul 26, 2019 10:41 pm
Forum: Beginners
Topic: Remote control of networked Pi's
Replies: 5
Views: 206

Re: Remote control of networked Pi's

Look to use MQTT passing a simple message from the control Pi to the remote ones. When the remote Pi get a play command, run the light show. http://www.steves-internet-guide.com/ has lots of details on MQTT I was just about to say the same, you can write scripts to publish and subscribe to the rele...
by PhatFil
Fri Jul 26, 2019 5:58 pm
Forum: General discussion
Topic: Pi4 Cooling
Replies: 118
Views: 10468

Re: Pi4 Cooling

I just received a flirc case. Ran the same test as the guy from Explainingcomputers : Ambient Temperature: 27.0'C temp=41.0'C temp=50.0'C temp=52.0'C temp=54.0'C temp=54.0'C temp=56.0'C temp=57.0'C temp=59.0'C The hottest spot on the case that I could find was 41'C. So this case not only looks beau...
by PhatFil
Fri Jul 26, 2019 5:14 pm
Forum: General discussion
Topic: Using the pi as Hi Fi system.
Replies: 11
Views: 802

Re: Using the pi as Hi Fi system.

this is a fully featured pi-hifi project https://github.com/project-owner/PeppyPlayers.doc/wiki and the autor has popped his head round our corner more than once too to offer support when needed..
by PhatFil
Fri Jul 26, 2019 1:48 pm
Forum: Troubleshooting
Topic: Grading app?
Replies: 13
Views: 408

Re: Grading app?

I want the app to put one tally mark beside each number each time I type that number, and I would like the tally mark on ONLY the number i type in. I'm not sure how to put it any other way... how about specifying the range of all possible scores and each tally mark you want associated with each num...
by PhatFil
Fri Jul 26, 2019 1:00 pm
Forum: Automation, sensing and robotics
Topic: Light Automation
Replies: 6
Views: 343

Re: Light Automation

Did you try running with sudo as suggested? that is prefixing the command to run your script with sudo *Super User DO"?

its easier to read if you cut and paste text into either a quote or code block in your posts, photo's of screens are tricky to read.. and code as message text doesn't stand out.
by PhatFil
Thu Jul 25, 2019 7:23 pm
Forum: Automation, sensing and robotics
Topic: Light Automation
Replies: 6
Views: 343

Re: Light Automation

all sorts of home automation options are available to you if the 'away timer' is just an excuse to play with your pi. you can wire everything up to your pi, but the advice above regarding mains power should be taken seriously the route i took involves using off the shelf smart sockets and reprogramm...
by PhatFil
Wed Jul 24, 2019 3:07 am
Forum: Beginners
Topic: Can raspberry pi turn on tv automatically?
Replies: 4
Views: 250

Re: Can raspberry pi turn on tv automatically?

For basic Power ON/OFF control. buy a smart socket and use that. if you dont like the idea of a remote server in constant contact with a smart wifi socket, which you shouldnt imho, get one that is compatible with alternative firmware like the excelant tasmota project.. then you can set the power to ...
by PhatFil
Tue Jul 23, 2019 5:06 pm
Forum: Automation, sensing and robotics
Topic: programmable air
Replies: 3
Views: 315

Re: programmable air

Its a start... and its a nice moment when you get to prove a concept.. get yourself a cheap Chinese plastic bag re sealing gadget;) it could allow you to make more complex fingers from poly bags.. no doubt it will take practice tho.. https://i.ebayimg.com/images/g/fvcAAOSwZ4dZG0Un/s-l640.jpg https:/...
by PhatFil
Tue Jul 23, 2019 2:05 pm
Forum: Python
Topic: Update a file from usb with a GPIO button
Replies: 5
Views: 252

Re: Update a file from usb with a GPIO button

Ok had to check.. In that case yes, your plan could work. in fact no need for the button. write a small script to look for your update file in a known location on the thumb drive every 60 seconds or so. And if/when it finds it perform the copy. Use an obscure directory path/filename to avoid acciden...
by PhatFil
Mon Jul 22, 2019 10:07 pm
Forum: Beginners
Topic: How to connect the IO pins for this project specifically
Replies: 3
Views: 161

Re: How to connect the IO pins for this project specifically

when selecting modules for your projects always pay attention to the pcb printing and ensure the interface pins are labeled both clearly and correctly.. for example if it uses a spi or i2c interface make sure you can ID the relevant pins on any board you invest in.. Its also a good idea only to spen...
by PhatFil
Mon Jul 22, 2019 9:59 pm
Forum: Automation, sensing and robotics
Topic: Combining light sensor and motion sensor with raspberry pi
Replies: 2
Views: 214

Re: Combining light sensor and motion sensor with raspberry pi

the approach many of us takeis to hunt down example projects concentrating on a single h/w component, then mash em together to fit your needs.. can you list the specific h/w your using or are you also looking for h/w pointers too. motion sensors and light sensors are not all the same here is an exam...
by PhatFil
Mon Jul 22, 2019 9:45 pm
Forum: Python
Topic: Update a file from usb with a GPIO button
Replies: 5
Views: 252

Re: Update a file from usb with a GPIO button

If your Pi is connected to the web you could enable ssh or vnc access and remotely log onto the pi,
https://www.realvnc.com/en/raspberrypi/

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