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need help getting started

Posted: Fri Oct 26, 2018 8:42 pm
by richbass
I've just today received my first RPi (3 B+)

I've installed the QLC+ image on a blank SD card, all loaded fine

I need to now load some fixture profiles, an IO profile and my workspaces, but I can't make the web interface connection from my pc

They are both connected to the same wifi router
The IP address of the RPi 'appears' to be 192.168.1.84 (according to Fing)
but typing http://192.168.1.84:9999 into my pc web browser just times out

In terms an idiot can understand, is anyone able to help?

Re: need help getting started

Posted: Sat Oct 27, 2018 9:33 am
by mcallegari
Can you actually ping that IP address?

To double check the RPi IP address, connect a TV and a mouse to it, go to the input/output panel and see what the ArtNet/E1.31/OSC plugins have detected.
If you see only 127.0.0.1, it means no IP has been assigned at all, which means DHCP issues or else.

Re: need help getting started

Posted: Sat Oct 27, 2018 7:48 pm
by richbass
You’re right
the artnet address is 127.0.0.1

Good call.

I realise this is an RPi issue, not QLC+, but do you know (or have any links) for how to resolve that?

Re: need help getting started

Posted: Sat Oct 27, 2018 8:14 pm
by richbass
I’m just finding out about sudo raspi-config
Looks like that’s what needs setting up

Re: need help getting started

Posted: Sat Oct 27, 2018 9:25 pm
by richbass
Just seen on another post that the image doesn’t include wifi support. OK. Cool. No worries.

Switch to ethernet cable.

With no editing of files I still can’t connect.
Any hints how I can find the problem?

Thanks

Re: need help getting started

Posted: Sat Oct 27, 2018 11:35 pm
by richbass
After some digging and research it looks like the ethernet port has issues.

I have another sd card with raspian on, so I’ll try duplicating the network setting on there

Re: need help getting started

Posted: Sun Oct 28, 2018 8:36 am
by edogawa
I was able to get Wifi working on the QLC+ image, I'm not sure what I actually did though, I think I called wpa_supplicant. supplied my SSID and passphrase and then it started working...

OTOH I wasn't able to establish an SSH connection with the ordinary Raspian image, I haven't had time and energy to look what's needed for that, yet.

Re: need help getting started

Posted: Sun Oct 28, 2018 10:40 am
by richbass
I’m saying this very cautiously, but I think it’s sorted

edited /etc/dhcpcd.conf to add the eth0 info
had already done that using nano, but that didn’t seem to work. Edited again on the pi gui using another install, and so far seem to have worked

two quick questions:

in the system part of the web interface there’s info re wlan. Does that mean it’s working for RPi now? (saw an old post saying it wasn’t supported)

i have a couple of widgets that on the web interface say “widget not supported (yet) for web access”. Does that mean they don’t work at all, or work but don’t display on the web interface?

Thanks 👍🏻

Re: need help getting started

Posted: Sun Oct 28, 2018 10:51 am
by richbass
For anyone reading that has had the same problem, the solution was to edit dhcpcd.conf

I tried editing at the command line (or whatever the correct term is) using
sudo nano /etc/dhcpcd.conf

try it, but that method didn’t work for me, so I put my QLC+ sd card in a usb adaptor, started my pi with another image, navigated to the file and opened with a graphical editor.

The file was blank, and I added the following lines:

interface eth0
static ip_address=192.168.1.251/24
static routers=192.168.1.254
static domain_name_servers=192.168.1.254

you will always eth0 as you only have 1 ethernet port

I set my pi up address to 192.168.1.251 because that is a free port for my network. you set what works for you, but you must include /24 at the end

my router has ip address 192.168.1.254. Look at your router to see what address you should use

I took a guess that for me the domain name server had the same ip address, and it seems to have worked. if you don’t know the address try the same

I found a cool app for my iphone to help me figure out the up addresses. It’s called Fing and shows you all addresses used on your current network. For some reason it doesn’t show the name for each device though (my raspberry pi was shown as generic), show it may be some trial and error and common sense to figure out which device is which. You can also login to the setup page for your router; my router has the instructions for doing this on the back of the router itself.

other interesting point that threw me, is that the leds on the ethernet port don’t seem to work as normal ethernet port lights. for me only the orange led was flashing. apparently the orange led is for one speed of connection, and the green for another. don’t know how true this is

Hopefully this’ll help other newbies