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by deepo
Thu Apr 16, 2020 8:14 pm
Forum: Beginners
Topic: Sending sms advice
Replies: 9
Views: 420

Re: Sending sms advice

Please, There are really no tutorial online... Also I live in france so if I get a module it would have to be a sim900 or a quad band... But I cannot find any tutorials on how to use them Your Google Fu is not very strong :) https://www.rhydolabz.com/wiki/?p=10450 https://github.com/minhhieuec/RASP...
by deepo
Tue Apr 14, 2020 7:31 pm
Forum: Beginners
Topic: Lora module, again
Replies: 8
Views: 255

Re: Lora module, again

Of course there is, LORA can do that, but not morse. It has it's own way of encoding and sending messages.
So if you can put your data into a message, it can be sent.

You could also look at this, using ESP32 and WiFi with a range of up to 10 km:
https://www.youtube.com/watch?v=yCLb2eItDyE

/Mogens
by deepo
Tue Apr 14, 2020 6:53 pm
Forum: General discussion
Topic: Use a web server to run a C program
Replies: 3
Views: 161

Re: Use a web server to run a C program

I think you need to build in a pipe or a socket into your virtual piano, have it running and then play any notes received over pipe or socket. Then you won't have an overload of starting your virtual piano every time anyone plays a note. You should then be able to write a simple CGI that sends a not...
by deepo
Tue Apr 14, 2020 6:33 pm
Forum: General discussion
Topic: Dual microphone noise cancellation
Replies: 15
Views: 652

Re: Dual microphone noise cancellation

Just stumbled on this: Noise cancellation in Pulse under Ubuntu:
https://www.youtube.com/watch?v=HCc80p7MsDg

/Mogens
by deepo
Mon Apr 13, 2020 6:22 pm
Forum: Automation, sensing and robotics
Topic: QR Code at night & 12V dry contact
Replies: 1
Views: 104

Re: QR Code at night & 12V dry contact

1. You can't transmit 12V through GPIO. You can use a relay instead.
2. QR codes are 2D, so I guess a camera would be the best choice.
3. IR diodes and an IR sensitive camera could help you here.

/Mogens
by deepo
Mon Apr 13, 2020 5:49 pm
Forum: Troubleshooting
Topic: delete / cleanup / garbage collect systemd service
Replies: 1
Views: 94

Re: delete / cleanup / garbage collect systemd service

You don't provide much information, but services can be stopped and disabled using systemctl:
https://helpmanual.io/help/systemctl/

So find the service you need to stop and disable it, and see if it helps.

/Mogens
by deepo
Sun Apr 12, 2020 6:35 pm
Forum: Beginners
Topic: understanding hats and the GPIO interface / learning the jargon
Replies: 8
Views: 368

Re: understanding hats and the GPIO interface / learning the jargon

You got it! A header exposes an electrical interface to the world. The 40 pin Raspberry Pi header has a number of pins that exposes the interfaces that the RPi has. Some hats have both the male and female parts, allowing a different hat can be stacked on top of the hat. This is because some hats onl...
by deepo
Sun Apr 12, 2020 4:39 pm
Forum: Other projects
Topic: Car Project
Replies: 3
Views: 298

Re: Car Project

You need an amplifier to drive the speakers in the car.
You can find cheap amplifiers on Banggood or ready to install amplifiers from your local car equipment shops.
You should be able to connect the RPi with the audio out jack plug and connect it to the amplifier.

/Mogens
by deepo
Sat Apr 11, 2020 6:10 pm
Forum: General discussion
Topic: Extract TV programming
Replies: 16
Views: 644

Re: Extract TV programming

Neither me nor the OP is based in US, and as far as I know US law is not universal.
But we can see that it's legal in the US to scrape the data.

If I were to do it I'd go to the source and scrape from there.

/Mogens
by deepo
Sat Apr 11, 2020 4:37 pm
Forum: General discussion
Topic: Extract TV programming
Replies: 16
Views: 644

Re: Extract TV programming

neilgl wrote:
Fri Apr 10, 2020 10:51 pm
Might be publicly available information, so no copyright.?
Just because the data is available somewhere for free does not mean that anyone lawfully can scrape that data off a site that has invested resources into collecting a lot of data from free sources.

/Mogens
by deepo
Fri Apr 10, 2020 8:25 pm
Forum: General discussion
Topic: Help with the project
Replies: 5
Views: 309

Re: Help with the project

Maybe this guide can get you going:
https://www.hobbyist.co.nz/?q=ili9488-l ... aspberrypi
It's for an older kernel though.

/Mogens
by deepo
Fri Apr 10, 2020 8:04 pm
Forum: General discussion
Topic: Extract TV programming
Replies: 16
Views: 644

Re: Extract TV programming

Are you allowed to extract their data and present them on your web page?

/Mogens
by deepo
Fri Apr 10, 2020 3:08 pm
Forum: Networking and servers
Topic: BLE connection with an android
Replies: 26
Views: 3744

Re: BLE connection with an android

Just a note on how to make it run on Buster Lite on a Raspberry Pi 3B+:

sudo apt-get install git
git clone https://github.com/douglas6/cputemp.git

sudo apt-get install python3-dbus
sudo apt-get install python3-gpiozero

cd cputemp
sudo python3 cputemp.py

/Mogens
by deepo
Fri Apr 10, 2020 12:38 pm
Forum: Graphics, sound and multimedia
Topic: How can I adjust the volume with the software ?
Replies: 7
Views: 488

Re: How can I adjust the volume with the software ?

The command pactl is not available on my Buster. So how's that going to work?

/Mogens
by deepo
Fri Apr 10, 2020 12:14 pm
Forum: Networking and servers
Topic: Nextcloud Client on a Pi 4?
Replies: 6
Views: 604

Re: Nextcloud Client on a Pi 4?

I think you're right, it's mostly icons, and not much else in that package.

/Mogens
by deepo
Thu Apr 09, 2020 5:52 pm
Forum: Networking and servers
Topic: Nextcloud Client on a Pi 4?
Replies: 6
Views: 604

Re: Nextcloud Client on a Pi 4?

Is that the nextcloud-desktop-common package?

Code: Select all

apt info nextcloud-desktop-common
/Mogens
by deepo
Thu Apr 09, 2020 5:07 pm
Forum: Advanced users
Topic: net space
Replies: 1
Views: 183

Re: net space

How about one of the free hosting solutions like this one: https://byet.host/free-hosting which has 5 GB disk space, FTP, PHP and MySQL.

/Mogens
by deepo
Thu Apr 09, 2020 3:56 pm
Forum: C/C++
Topic: Programming bluetooth using C++
Replies: 16
Views: 9932

Re: Programming bluetooth using C++

I have also tried to get Bluetooth communication code working from C++ - with varied success. My goal is to intercept Bluetooth Low Energy (BLE) Advertisement messages, similar to Bluetooth beacon signals. I have managed that using the Bluez Bluetooth stack. My goal was to receive temperature measu...
by deepo
Wed Apr 08, 2020 6:16 pm
Forum: Networking and servers
Topic: Nextcloud Client on a Pi 4?
Replies: 6
Views: 604

Re: Nextcloud Client on a Pi 4?

What NextCloud client?
It's web based, isn't it?

I have a Raspberry Pi 4B with NextCloud, so my setup is "opposite" form yours I guess.

/Mogens
by deepo
Wed Apr 08, 2020 6:04 pm
Forum: Beginners
Topic: crontab
Replies: 7
Views: 317

Re: crontab

Have a look at this page to generate crontab lines:
https://crontab-generator.org/

/Mogens
by deepo
Mon Apr 06, 2020 2:35 pm
Forum: Networking and servers
Topic: Webiste server using raspi4
Replies: 1
Views: 131

Re: Webiste server using raspi4

You need to learn about DNS, as it seems Google Domains requires you to point your domain to the external IP address of your Raspberry Pi. An A record connects your domain (or a subdomain) to an IP address. Next you need to learn about routers as you will most likely have to create a port forward in...
by deepo
Mon Apr 06, 2020 2:25 pm
Forum: Advanced users
Topic: Impinj Speedway Reader
Replies: 3
Views: 200

Re: Impinj Speedway Reader

No, I do not. Haven't heard of it.

/Mogens
by deepo
Sun Apr 05, 2020 8:02 pm
Forum: Troubleshooting
Topic: Is there any obvious reason why my raspberry pi 3b will not run an executable?
Replies: 15
Views: 594

Re: Is there any obvious reason why my raspberry pi 3b will not run an executable?

A MacBook and a Raspberry Pi do not share computer architecture, so an executable from one can't be executed on the other.
What are you trying to do?
Give us more info if you want help.

/Mogens
by deepo
Sat Apr 04, 2020 9:31 pm
Forum: General discussion
Topic: Hosting a Webserver on the Raspberry Pi
Replies: 17
Views: 752

Re: Hosting a Webserver on the Raspberry Pi

I am chipping away at it here. I am certain of the public IP address now for the website and when I ping it I get the same response for both the URL and for the public IP address, so... I guess that means that it is getting past the router... but still no website publishing. I made some changes in ...
by deepo
Sat Apr 04, 2020 2:39 pm
Forum: Advanced users
Topic: Impinj Speedway Reader
Replies: 3
Views: 200

Re: Impinj Speedway Reader

Impinj has a software package called Speedway Connect that lives on the reader and enables you to configure it to send data to a specific IP address and port, and select output format such as JSON. But I think you'll have to pay for it. Another way is using the Low Level Reader Protocol (LLRP), but ...

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