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by rompelstilchen
Wed Jun 24, 2020 7:40 pm
Forum: Raspberry Pi OS
Topic: RTOS on raspberry pi3
Replies: 17
Views: 40329

Re: RTOS on raspberry pi3

murtaza wrote:
Thu Oct 04, 2018 5:56 pm
For sophisticated real time application, you can use ROS(robot operating system). It is a framework works stably over UBUNTU.
nothing to do with real time
by rompelstilchen
Wed Jun 24, 2020 7:39 pm
Forum: Raspberry Pi OS
Topic: RTOS on raspberry pi3
Replies: 17
Views: 40329

Re: RTOS on raspberry pi3

paolojo wrote:
Thu Jan 04, 2018 10:55 pm
Why Arduino?
if you just need sensors reading, why raspberry pi ?
by rompelstilchen
Sat May 23, 2020 12:28 pm
Forum: General discussion
Topic: Very simple OTG on pi4
Replies: 43
Views: 31086

Re: Very simple OTG on pi4

I dont get it , I thought the OTG was supposed to be able to use the pi as a general purpose usb slave/gadget

but the only infos I find are about Raspbery Zero being used as a remote network device or something
by rompelstilchen
Sat May 23, 2020 11:41 am
Forum: General discussion
Topic: Very simple OTG on pi4
Replies: 43
Views: 31086

Re: Very simple OTG on pi4

thagrol wrote:
Thu May 21, 2020 7:43 pm
rompelstilchen wrote:
Thu May 21, 2020 6:42 pm
what does dwc2 do ?
please give some explanation instead of blindly copy pasting anything from the web
Given the attitude expressed there the only response you're gonna get is: try google.
there is no tutorial on google, hence my suspicious "attitude" toward so few informations
by rompelstilchen
Sat May 23, 2020 11:38 am
Forum: General discussion
Topic: Very simple OTG on pi4
Replies: 43
Views: 31086

Re: Very simple OTG on pi4

thanks for the help

sorry for being "acid" on that one, but

- I found it very frustrating, that no explanation was given, there is a lot of fake, quick crap posted on the web

- I already been searching and it seems like nobody ever tried to use the RPI4 as a USB slave afaik

regards
by rompelstilchen
Thu May 21, 2020 6:48 pm
Forum: General discussion
Topic: Very simple OTG on pi4
Replies: 43
Views: 31086

Re: Very simple OTG on pi4

just tried with this setup

Image

modifying the config.txt and crontab as you suggested, it does not work
I get a Unrecognised USB device on win 7

please provide more infos on how to do this
by rompelstilchen
Thu May 21, 2020 6:42 pm
Forum: General discussion
Topic: Very simple OTG on pi4
Replies: 43
Views: 31086

Re: Very simple OTG on pi4

what does dwc2 do ?
please give some explanation instead of blindly copy pasting anything from the web
by rompelstilchen
Thu May 21, 2020 3:29 pm
Forum: General discussion
Topic: Very simple OTG on pi4
Replies: 43
Views: 31086

Re: Very simple OTG on pi4

this can't work
I plugged my pi4 with an usb C cable , the computer cant even power the PI
you need a Y split cable
by rompelstilchen
Sun May 10, 2020 1:29 pm
Forum: Beginners
Topic: How do you create a desktop icon to start a program
Replies: 18
Views: 71917

Re: How do you create a desktop icon to start a program

say what you want about linux distros windows manager, but this is really middle age
when are they gonna add aright click/add shortcut dialog
by rompelstilchen
Fri May 08, 2020 3:23 pm
Forum: Advanced users
Topic: RPI 4 OTG gadget
Replies: 5
Views: 425

Re: RPI 4 OTG gadget

I'll use shotky's, but are D+ D- signals from USB-A enough for this to work (apart from the GND) ?
by rompelstilchen
Fri May 08, 2020 3:14 pm
Forum: Advanced users
Topic: RPI 4 OTG gadget
Replies: 5
Views: 425

Re: RPI 4 OTG gadget

- there is a low power mode apparently : https://www.hardill.me.uk/wordpress/201 ... -c-gadget/
- I'll make a custom cable with a diode to avoid power return

the goal is to test that setup on my pc, then on other devices acting as usb master

I want to send midi notes to the RPI4
by rompelstilchen
Fri May 08, 2020 1:17 pm
Forum: Advanced users
Topic: RPI 4 OTG gadget
Replies: 5
Views: 425

RPI 4 OTG gadget

Hello, Since RPI4 support gadget mode OTG on the USB-C port, I thought about connecting it on an laptop or anything similar - can I just plug it that way or does it need to be configured somehow as a usb slave? - does it need to be set in low power mode ? - I tried on my desktop and the usb port doe...
by rompelstilchen
Fri May 08, 2020 10:59 am
Forum: Troubleshooting
Topic: [VNC] Cannot currently show the dekstop
Replies: 57
Views: 201390

Re: [VNC] Cannot currently show the dekstop

ok I have setup the screen resolution in the parameters too, so now it starts full resolution
by rompelstilchen
Fri May 08, 2020 10:56 am
Forum: Troubleshooting
Topic: [VNC] Cannot currently show the dekstop
Replies: 57
Views: 201390

Re: [VNC] Cannot currently show the dekstop

I don't remember I had to do this before
and even though I choose the max resolution, it appears only in some 1024x700 or something
wtf?
by rompelstilchen
Sun Mar 29, 2020 6:01 pm
Forum: Networking and servers
Topic: RPI3/4 network : router or switch ?
Replies: 6
Views: 521

Re: RPI3/4 network : router or switch ?

but the router routes packets to the correct host right
by rompelstilchen
Sun Mar 29, 2020 1:51 pm
Forum: Networking and servers
Topic: RPI3/4 network : router or switch ?
Replies: 6
Views: 521

RPI3/4 network : router or switch ?

Hello, I am building a ROS appliance in which each RPI3/4 communicates with each other most people use 1GB switch to build a cluster so each port has a 125mb/s bandwidth but RPI4 can do 1GB and it also means all the RPI's have to filter packets that are not meant to be read (probably at CPU level) -...
by rompelstilchen
Tue Jan 28, 2020 3:27 pm
Forum: Beginners
Topic: Not getting any output from MCP3008 [solved]
Replies: 9
Views: 3113

Re: Not getting any output from MCP3008 [solved]

why connect AGND to the RPI ?
this is obviously a gnd for the analog side of the ship
by rompelstilchen
Fri Jan 17, 2020 2:42 pm
Forum: Gaming
Topic: retropie vs retroarch vs recalbox vs.....
Replies: 5
Views: 4850

Re: retropie vs retroarch vs recalbox vs.....

fruitoftheloom wrote:
Fri Jan 17, 2020 5:28 am

Lakka ???

http://www.lakka.tv/
thanks I'll check this out
by rompelstilchen
Fri Jan 17, 2020 2:41 pm
Forum: Gaming
Topic: retropie vs retroarch vs recalbox vs.....
Replies: 5
Views: 4850

Re: retropie vs retroarch vs recalbox vs.....

All of them use the same emulators more or less. Retropie works just fine for me. Which means you aren't configuring something correctly or you have bad ROMs. Either way you are probably better off asking for help in retropie or recalbox official forums. roms are fine and working on windows I am ta...
by rompelstilchen
Fri Jan 17, 2020 12:33 am
Forum: Gaming
Topic: retropie vs retroarch vs recalbox vs.....
Replies: 5
Views: 4850

retropie vs retroarch vs recalbox vs.....

Hello,

I use retropie...and by experience, most of the games dont work

so does anyone have better experience with other packages ?

thanks
by rompelstilchen
Sun Nov 24, 2019 7:40 pm
Forum: Advanced users
Topic: pc Hard drive ?
Replies: 8
Views: 649

Re: pc Hard drive ?

ok so I guess without 12 V it wont work,

and there is no 12 V extra pin for the sata so I am screwed
I guess these cables are only meant for lapto drives...never trus a f@#king local store idiot....
by rompelstilchen
Sat Nov 23, 2019 7:49 pm
Forum: Advanced users
Topic: pc Hard drive ?
Replies: 8
Views: 649

pc Hard drive ?

hello, I wanted to plug a 1tb PC hard drive to a rapsberry pi 3 using the cable below - so I connected one usb plug to the pi usb port, the other one to an external power supply (PC ATX suppy) - I isolated the 5V pin of the RPI usb from power the external supply (leaving only D+,D-,GND connected to ...
by rompelstilchen
Sun Aug 04, 2019 7:25 am
Forum: Beginners
Topic: Can't ping router.
Replies: 10
Views: 8708

Re: Can't ping router.

got the exact same issue on wlan0 rpi zero I cant find any setting on the router related to arp, so I changed the ip range of the dhcp, finaly get a different ip but the problem persists pinging the router hangs there forever, as a workaround, I use an ethernet usb dongle, so it's definetely a MAC a...
by rompelstilchen
Thu Jul 18, 2019 9:05 pm
Forum: General discussion
Topic: tensorflow / pytorch
Replies: 0
Views: 328

tensorflow / pytorch

Hi, tried to install these - they are huge, considering the small use I need to have from these - it takes ages to install them, then, they just dont even build/install, I encounter tons of errors just sick of it, are there any smaller packages that install on RPI3 ? with multi-layer NN that actualy...
by rompelstilchen
Thu Jul 11, 2019 7:56 pm
Forum: Troubleshooting
Topic: locale f*****m in buster
Replies: 3
Views: 499

locale f*****m in buster

hi everybody can someone tell me why I cannot choose my own language in latest (june) buster release ? I live in belgium, but I speak english so basicaly, if I want english, I have to choose uk as a country (why? whe have english people in belgium) and then the only timezone I can choose is london w...

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