Raspberry pi 4B

[JirkaAndrle]

Hi, will this work on Raspberry pi 4B

[rdudhagra]

Yep, this should be compatible with the Raspberry Pi 4B!

[rdudhagra]

Of course, feel free to post any issues you're running into and we can work through them together

[JirkaAndrle]

I have to set the Ampery on the TMC2209 Driver with the dial, or the software will do it automatically.

[JirkaAndrle]

Do you have any more photos of the ramps electronics so I can check the wires to see if I'm connecting them correctly, thank you

[rdudhagra]

I have to set the Ampery on the TMC2209 Driver with the dial, or the software will do it automatically.

I believe you don't need to set it. Although it's been a few years since I've fiddled with those drivers so I could be misremembering.

[rdudhagra]

Do you have any more photos of the ramps electronics so I can check the wires to see if I'm connecting them correctly, thank you

Unfortunately no—and I don't have easy access to the table I built anymore. I can try and sanity-check your wiring though if you send me a photo of what you have.

[JirkaAndrle]

[rdudhagra]

The wiring looks right to me—although, I'm not able to confirm which one of your leads has the 1k resistor in series...just double-check that you connected the AUX2 header on the RAMPS board correctly with this diagram.

[JirkaAndrle]

Z pravé strany je rezistor. Jeden rezistor mám na fialovém drátu a druhý odpor na modrém drátu, oba jsou zakončené a připájené dohromady.

[rdudhagra]

Ok great, that matches the diagram then...wiring looks good to me!

[JirkaAndrle]

Hi, I copied this and it gives me an error: curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
export NVM_DIR="$HOME/.nvm"
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && . "$NVM_DIR/bash_completion" # This loads nvm bash_completion
nvm install 14.18.3
npm install -g npm

[rdudhagra]

Seems like your npm version is too new...take a look at #28 for how to downgrade.

[JirkaAndrle]

Hi the engines are turning but I can't get to the website. what exactly should I type into the search engine I put my name raspb. and ip address. whatever it could be. So far thanks for everything. I like it a lot I'm not 100 percent yet but with a little bit of your help I can probably manage it.

[rdudhagra]

Hmm so seems like arduino-cli didn't install. I wonder if there's a firewall/etc where you're at that stopped the download process. Can you try running these commands directly to install it?

curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | BINDIR=/home/pi/ sh
chmod +x /home/pi/arduino-cli

[rdudhagra]

Sometimes, your web browser will try to use https even for IP addresses, which my software doesn't support. Try and explicitly put http:// at the beginning of the URL, so something like http://192.168.X.X (or if you have MDNS enabled on your router then http://sandtable.local).

Also, can you double-check that you've followed the NGINX setup instructions correctly (scroll down to Step 6 in the build guide)? You can run sudo systemctl status nginx to see if the process is actually running, or if there's an error. And you can run sudo journalctl -u nginx.service to get the full logs (which might help you diagnose the error).

Hopefully that helps...if you're stuck feel free to post some more screenshots/log outputs here and I can help debug!

[JirkaAndrle]

My LEDs also don't light up, they just flash when I turn them on. Where and what and how many LEDs should I write and replace them in the firmware? Thank you very much for your help.

[rdudhagra]

You'll want to edit this line to match the number of LEDs in your strip. And hopefully resolving the arduino-cli install issue you found earlier also solve this one!

Oh and if you're running into stability issues there are some fixes in #57 that might help you out as well!

[JirkaAndrle]

hi I have a problem I don't know where the problem is

[JirkaAndrle]

[JirkaAndrle]

I got it on 16.3.0 and npm 6.14.7

[rdudhagra]

Looks like babel didn't install...can you post the output of npm install?

[JirkaAndrle]

-bash: npm: command not found

[JirkaAndrle]

[JirkaAndrle]

I just installed it and it says this

[rdudhagra]

Oh you should run the command in ~/Documents/Sand-Table/Website

[JirkaAndrle]

Hi, I enter npm install and it says an error

[JirkaAndrle]

I tried it and I don't know what I'm doing wrong.

[JirkaAndrle]

Hi, what version of node and npm do I need? npm v6.14.7 , node?

[JirkaAndrle]

Which of these do you think is in order?

[JirkaAndrle]

Hello, I don't know how to give it, I always start from scratch. I have managed software on a raspberry pi 4 B

[JirkaAndrle]

It is the right software

[rdudhagra]

Hey, sorry for going offline for the past two weeks. Let's resolve these issues one-by-one:

Webserver not launching

It seems like npm install didn't work correctly. I only see a screenshot from above where you ran the command from the root directory, instead of within the Website folder. So, let's create a baseline for ourselves—would you mind running the following commands in your terminal, and paste the whole output?

cd ~/Documents/Sand-Table/Website # Go to the correct directory
rm -rf node_modules # Let's purge your installed packages and start from scratch
node -v # Should be 14.X
npm -v # Should be 6.14.X
npm install # Run the actual install command, look out for any errors
npm run prod # Ok, now the web server should launch given that the previous commands didn't have errors

Arduino-cli wasn't installed

Can you confirm that arduino-cli is correctly installed (see this reply from above)?

[rdudhagra]

Another possible issue: check if python2 is installed on your Raspberry Pi. Newer versions of Debian don't come with Python2 installed; however, one of the libraries used by the website still uses it.

If which python2 doesn't yield a path, then try installing it with sudo apt install -y python2.

[JirkaAndrle]

Hi, thank you very much for your help, I will take pictures tomorrow and upload them here. I really appreciate it.

[JirkaAndrle]

Anyway, I can't install led on arduino because arduino-cli crashes. I've tried it several times. Arduino IDE also doesn't work and I've looked on the internet and I don't know where the problem is. I've tried it at work and at home and the result is still the same.

[JirkaAndrle]

I use a WS2812 LED, I changed the number of LEDs and the amps. Even though I kept the original one from you, I still can't replace it with an Arduino.#define DATA_PIN 3
#define LED_TYPE WS2812
#define NUM_LEDS 168
#define BRIGHTNESS 255
#define MAX_MILLIAMPS 5000

[JirkaAndrle]

Ahoj, tak jsem znovu nahrál Debian na čistou kartu a postupoval podle tvých pokynů krok za krokem, nahrál jsem fotky, abyste je viděl krok za krokem. We should solve the LED strip first and then move on to the rest. Thanks again for your help, I really appreciate it.

[JirkaAndrle]

[rdudhagra]

Ok, your npm version is too new. You need to be on 6.14.7. Follow #28 (or just run npm install -g npm@6.14.7). Then, try running the install steps again.

For arduino_cli, I need more information to diagnose the issue. Can you run the following and post a screenshot:

cd ~/Documents/Sand-Table/Website
./flash-light-strip-controller.sh

[rdudhagra]

Ah nevermind I see the issue. The script assumes your username is pi. I pushed a change that should fix this...just git pull and re-run the script.

[rdudhagra]

You will need to modify the systemd service file you created /etc/systemd/system/sandtable.service to reflect your chosen username of sandtable.

[JirkaAndrle]

Hi, I can't configure nginx with this.

[JirkaAndrle]

[JirkaAndrle]

I already installed arduino, this helped: cd ~/Documents/Sand-Table/Website
./flash-light-strip-controller.sh

[JirkaAndrle]

I renamed it to pi. but it still doesn't run

[JirkaAndrle]

Hi, the motors are turning, but the website is still not there. I uploaded the Arduino software yesterday, but it has the same settings as yours. How can I change it if I need a WS2812 LED and it can't be uploaded through the Arduino IDE where I could change it. I'm sorry, I'm probably being too annoying. But thank you for your experience. I'm new to this and I'm really enjoying it. I can't wait to have your table.

[rdudhagra]

So looks like the arduino-cli issue is solved! The current software assumes you're using WS2812 LEDs so you won't need to change anything. Otherwise, you could modify the code in the repo and just upload it with the flash_light_strip_controller.sh script.

[JirkaAndrle]

[JirkaAndrle]

Hi, here is almost the entire list.
After entering this...
cd ~/Documents/Sand-Table/Website # Go to the correct directory
rm -rf node_modules # Let's purge your installed packages and start from scratch
node -v # Should be 14.X
npm -v # Should be 6.14.X
npm install # Run the actual install command, look out for any errors
npm run prod # Ok, now the web server should launch given that the previous commands didn't have errors

[JirkaAndrle]

[JirkaAndrle]

Hi, I'm still doing something wrong.

[JirkaAndrle]

Hi, I have a welcome screen, what now?

[rdudhagra]

Ok, the server is all configured now. I think the next problem is with nginx. Can you run the following commands:

cat /etc/nginx/sites-available/node
sudo journalctl -u nginx.service -b

[JirkaAndrle]

Hi, here it is.

[JirkaAndrle]

still nothing

[rdudhagra]

Ok, a few things to try:

1. Can you check if /etc/nginx/sites-enabled/default still exists? The instructions in the build guide state to delete it.
2. Also, just to confirm, are you attempting to access the website while npm run prod is running? Once you Ctrl+C the process the web server will stop running, of course (until you set up the systemd service, then it'll launch automatically).
3. One more thing: let's make sure that the server itself is running on the local port. In a terminal, type curl http://127.0.0.1:3000. Do you get an html page that looks like it would be from the sand-table website, or does it look generic or return an error?

[rdudhagra]

Also, can you verify that /etc/nginx/sites-enabled/node is correctly set up as a symlink to the file you pasted the output of earlier?

For context I'm referencing this website that's linked in the build guide.

[JirkaAndrle]

Hi, I can't understand why on the new tab cd/Documents no su file or directory, it's been doing this since you modified nvm, npm. Does it bother you or not?

[rdudhagra]

Yes that is somewhat concerning; although, I think it doesn't really matter where the repo is cloned. Based on your screenshots, it's in /home/pi/Sand-Table. Make sure that the paths in /etc/systemd/system/sandtable.service match this (and do not use the path that references Documents.

[JirkaAndrle]

/etc/nginx/sites-enabled/default
sudo rm /etc/nginx/sites-enabled/default
Hi, I have a problem here.
no such file directory

[rdudhagra]

Ok that's good. If it's not there then you don't have to remove it!