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Tibus / TouchScreen-For-NanoDLP

Nextion Touch Screen => NodeJS => NanoDLP By Mango3D
http://fb.com/mango3dslicer
MIT License
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Connecting to printer error [Rpi 2 B+ and nextion 3.5] #15

Closed rdastartupguy closed 6 years ago

rdastartupguy commented 6 years ago

Hi all, Trying to get this working with nanodlp but I have two concerns.

  1. I get the "connecting to printer" on my Rpi 2 B+ with nextion 3.5 screen setup
  2. I'm confused with the GPIO pin out diagram provided in the hardware readme section. On Raspberry.org it says GPIO 14 & 15 as Tx, Rx but in Tibus's reference diagram its written 15 & 16. Am I reading it wrong?

Anyone who's gotten past the "Connecting to printer.." error? I tried everything in rpi3 issue but it doesn't work.

rdastartupguy commented 6 years ago

Tried everything given in the forums + this one as well https://github.com/cuboid3d/nanodlp Still stuck at "Connection To Printer..."

H/w -- Rpi2 B+ and Nextion 3.5

jamesarm97 commented 6 years ago

I had a long time ago. The first time was very tricky and I ended up using a USB to TTL serial adapter instead of the Rpi GPIO RX/TX and it worked. The second worked without it following the steps. You need to make sure when you run the pi server side that it is not reporting any errors. I did this by running the Nextion script on the console and watched it.

rdastartupguy commented 6 years ago

wow, so a USB to TTL serial adapter would work off the bat without any additional drivers or script modifications? If yes, then I shall be trying that today. Will report how it works.

And as for your second tip, I shall do a clean install of the nanoDLP image and run the script again.

jamesarm97 commented 6 years ago

Correct about the usb to serial ttl. That is how I use mine, no messsing with the gpio. Just have to note and select the correct serial device in the config file.

stewie0056 commented 6 years ago

Hello, I had a Pi 2 B and Nextion 3.5 Basic with the not connecting issue too. The fix for me was to disable the shell over serial option.

Type "sudo raspi-config" Select "Interfacing Options" Select "Serial" Select "No" Select "Yes" Select "Ok" Select "Yes" to reboot

Hope this helps.

rdastartupguy commented 6 years ago

Guys sorry for the delay in updating the status, yes I got it to work over rpi2. I had installed wrong script and then installed the correct script which may have caused conflict. I made a clean wipe, installed nanoDLP image and then proceeded with Tibus installation instruction and it worked. Thank you Stewie and James, without your inputs I wouldn't have made it. Much appreciated!