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by topguy
Tue Feb 25, 2020 1:24 pm
Forum: Beginners
Topic: How to transmit data trough an access point without protocol
Replies: 8
Views: 167

Re: How to transmit data trough an access point without protocol

want to broadcast my RPi ip address Why ? There are better ways of letting the app know the ip-address.. - use "raspberrypi.local" or https://developer.android.com/training/connect-devices-wirelessly/nsd - use DNS. - use the gateway address for the Wifi connection and assume that this is the Pi add...
by topguy
Tue Feb 25, 2020 1:17 pm
Forum: Automation, sensing and robotics
Topic: voice controlled robot project
Replies: 1
Views: 58

Re: voice controlled robot project

but i want to know its application
I think the physical features of your robot will be a very strong factor in selecting its application. Can it walk, climb, jump, swim, fly, lift stuff etc ??
by topguy
Tue Feb 25, 2020 12:41 pm
Forum: General discussion
Topic: access Raspibian remotely via web browser
Replies: 2
Views: 61

Re: access Raspibian remotely via web browser

Hi is there a way to access raspibian remotely via web browser I already tried chrome remote desktop but no luck on making it work via chromium. Is there any other alternative for this. Access from the same LAN or over the Internet ? https://www.raspberrypi.org/forums/viewtopic.php?t=81165 https://...
by topguy
Tue Feb 25, 2020 12:39 pm
Forum: Beginners
Topic: How to transmit data trough an access point without protocol
Replies: 8
Views: 167

Re: How to transmit data trough an access point without protocol

What are you really trying to make/do ?
Has the app no other purpose than to connect to the RPi AP ?

There is a command "hostapd_cli" that can print informatiion about connected clients.
by topguy
Tue Feb 25, 2020 10:35 am
Forum: HATs and other add-ons
Topic: Send AT commands to 4G HAT
Replies: 1
Views: 41

Re: Send AT commands to 4G HAT

So how many serial ports do the device give you ? One or more ? Because you can not send AT commands on the same port as the PPP are using. Have you tried the QMI/Wan driver ? Because that would/could free up the serial interface. 3rd option is to use a binary multiplex protocol deamon to create mul...
by topguy
Tue Feb 25, 2020 10:19 am
Forum: Beginners
Topic: 3D Shutter Glasses Sync
Replies: 3
Views: 65

Re: 3D Shutter Glasses Sync

Almost related ;) https://www.raspberrypi.org/forums/viewtopic.php?t=237259 When a google search puts your post as the 3rd item found, you know there is very little information on the net about this in general. And as a comment in the other thread said, this profile would normally be implemented in ...
by topguy
Tue Feb 25, 2020 10:11 am
Forum: Beginners
Topic: Bridge and route internet access
Replies: 1
Views: 37

Re: Bridge and route internet access

1)
https://www.raspberrypi.org/documentati ... s-point.md
If you understand the procedure you should be able to replace eth0 with the interface name for your 4G key. ( ppp0 or wan0 maybe)
But first you need to get your 4G key working.
by topguy
Tue Feb 25, 2020 10:06 am
Forum: Beginners
Topic: How to transmit data trough an access point without protocol
Replies: 8
Views: 167

Re: How to transmit data trough an access point without protocol

- That app wants to connect to RPi access point. - once it connected successfully the mobile app want some authentication like successfully connected message from RPi side I'm pretty sure the app can tell Android that it wants to connect to the AP, and Android will probably do it and should afterwa...
by topguy
Mon Feb 24, 2020 2:56 pm
Forum: Beginners
Topic: Captain’s log voice and transcription
Replies: 2
Views: 88

Re: Captain’s log voice and transcription

After reading this thread: https://unix.stackexchange.com/questions/256138/is-there-any-decent-speech-recognition-software-for-linux Only https://github.com/mozilla/DeepSpeech caught my eye.. ..can it run on a Pi ? Quote from https://hacks.mozilla.org/2019/12/deepspeech-0-6-mozillas-speech-to-text-e...
by topguy
Mon Feb 24, 2020 2:48 pm
Forum: Python
Topic: switching between video files
Replies: 1
Views: 41

Re: switching between video files

Without any specific issues you want help with its a bit hard to come up with useful information.
Do you now just focus on the "play video" part ?
Since this is posted in Python I'm assuming you want to implement it in Python ? How are your skills there ?
by topguy
Mon Feb 24, 2020 2:18 pm
Forum: C/C++
Topic: C to read and write USB
Replies: 2
Views: 426

Re: C to read and write USB

A "usb to serial" should not be detected as a "hid" device, but you are not the only one with the problem.
https://community.cypress.com/thread/30 ... 0&tstart=0

So its a bit weird....
http://allican.be/blog/2017/01/28/rever ... l-usb.html
by topguy
Mon Feb 24, 2020 1:05 pm
Forum: Beginners
Topic: How to transmit data trough an access point without protocol
Replies: 8
Views: 167

Re: How to transmit data trough an access point without protocol

What kind of phone ? If the app is running on the phone it is the phones operating system that should inform the app that the phone is now connected to a WiFi.
by topguy
Mon Feb 24, 2020 11:22 am
Forum: Beginners
Topic: Running console command at startup
Replies: 14
Views: 242

Re: Running console command at startup

For the menu item I guess you could create a script that first start the prowl notification and then start the app normally. And then replace the "app" with the "script" in the menu item..
by topguy
Mon Feb 24, 2020 11:20 am
Forum: Beginners
Topic: Running console command at startup
Replies: 14
Views: 242

Re: Running console command at startup

Code: Select all

/home/pi/prowl.pl -apikeyfile=prowl_key.txt -event="Startup" -notification="Raspberry Pi started"
It might be enough to put this in the "/etc/rc.local" file. ( no sudo, its already being run by root (not sure why you need sudo to start with either) )
by topguy
Fri Feb 21, 2020 12:51 pm
Forum: Other projects
Topic: Specification Object Detection Model
Replies: 1
Views: 64

Re: Specification Object Detection Model

Are we talking OpenCV, TensorFlow or what ?

I think with a Pi4 and 4GB you can more or less disregard hardware limitations and rather pick the model that suit the objects you want to detect.
by topguy
Fri Feb 21, 2020 12:43 pm
Forum: Python
Topic: removing Twython
Replies: 4
Views: 143

Re: removing Twython

You are sure you used "pip3" to install it ?
by topguy
Fri Feb 21, 2020 12:41 pm
Forum: Troubleshooting
Topic: Hardware acceleration on RPi 1
Replies: 6
Views: 163

Re: Hardware acceleration on RPi 1

Which Raspbian version are you on ?
by topguy
Fri Feb 21, 2020 11:10 am
Forum: Automation, sensing and robotics
Topic: Neo-6M GPS update faster than 1Hz
Replies: 2
Views: 105

Re: Neo-6M GPS update faster than 1Hz

You download the documentation for your module to find the "string" you need to send to your GPS to change update frequency and maybe also baudrate. Or you google it.. https://forum.arduino.cc/index.php?topic=470763.0 https://medium.com/@cglabs/neo-6m-gps-howto-boost-data-receiving-speed-neo-6-neo-7...
by topguy
Fri Feb 21, 2020 11:01 am
Forum: Troubleshooting
Topic: Hardware acceleration on RPi 1
Replies: 6
Views: 163

Re: Hardware acceleration on RPi 1

https://kivy.org/doc/stable/installatio ... n-rpi.html

AFAIK there are versions of Kivy that can use the OpenGLES accelleration on the Pis, so it can run accellerated fullscreen apps.
by topguy
Fri Feb 21, 2020 10:53 am
Forum: Automation, sensing and robotics
Topic: Is ProviewR dead on the Pi?
Replies: 2
Views: 118

Re: Is ProviewR dead on the Pi?

But your link leads me to a release from December last year....
by topguy
Fri Feb 21, 2020 10:49 am
Forum: General discussion
Topic: Streaming on the Raspberry Pi
Replies: 6
Views: 329

Re: Streaming on the Raspberry Pi

a42857 wrote:
Thu Feb 20, 2020 6:29 pm
I tried LibreELEC with Kodi, but couldn't access most sites.
Kodi has a ton of add-ons under "video" that can stream from a lot of web-sites but of course you will not get the same freedom as with a browser.
https://kodi.tv/addons/video-add-ons
by topguy
Thu Feb 20, 2020 3:41 pm
Forum: Troubleshooting
Topic: Rc522 RFID scanner gives Errno 2 error
Replies: 4
Views: 88

Re: Rc522 RFID scanner gives Errno 2 error

Code: Select all

 python3: can’t open file ‘Write.py’ : [Errno 2] No such file or directory
This is not a very cryptic error it tells you clearly it cant find the file.

Either you created/edited a file with a different name by accident or you are not standing in the correct directory when you write the command.
by topguy
Thu Feb 20, 2020 1:29 pm
Forum: OpenGLES
Topic: Pi4 gbm needs 'sudo' ?
Replies: 3
Views: 130

Re: Pi4 gbm needs 'sudo' ?

I saw this in the usage guide for "flutter-pi" sounds relevant for you question..

Adding "pi" user to the "render" group.

Code: Select all

usermod -a -G render pi
by topguy
Thu Feb 20, 2020 1:09 pm
Forum: General discussion
Topic: Streaming on the Raspberry Pi
Replies: 6
Views: 329

Re: Streaming on the Raspberry Pi

LibreElec running Kodi would be my tip towards the best performing mediaplayer. ( IDK if they are fully supporting Pi4 )

But if that doesnt perform then we have to ask about networking performance, how is the Pi connected to the internet.
by topguy
Thu Feb 20, 2020 1:03 pm
Forum: General discussion
Topic: NFC tags in raspberry pi
Replies: 3
Views: 156

Re: NFC tags in raspberry pi

Have you ever used another NFC module?
I have, but they are usually USB based and I haven't usually done card-emmulation with them.

I dont know enough about I2C to say if your problem is with the PN532 itself or just the I2C communication. ( which goes back to why I prefer USB devices.. )

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