nanoDLP

guanu

Member

Registered: 2019-07-23

Posts: 1

Nextion connects, buttons not responding

Like the title says, the nextion connects (2.4" basic), shows Not Printing, TCP/IP, and 4 buttons, but none of the buttons respond.   When I press them, the whole button lights up like it would when you hit a touchscreen button, but does not do anything.  So it shows that it is getting the touch properly, but not communicating properly.  Any ideas?  Since it connects, obviously the communication is working. Thanks!

biqut2

Member

Registered: 2019-07-26

Posts: 4

Re: Nextion connects, buttons not responding

I also have this same problem. My latest attempt to fix this was as follows:

Install Raspian Buster Lite

(wget http://www.nanodlp.com/nanodlp.beta.tar.gz? -O - | tar -C /home/pi -xz);cd /home/pi/printer;sudo ./setup.sh

sudo raspi-config
=> Interfacing Option

=> Serial

=> NO

=> YES

sudo nano /boot/config.txt
=> add this line :

dtoverlay=pi3-disable-bt
=> then

sudo reboot
sudo nano /boot/cmdline.txt
=> remove the word phase "console=serial0,115200" or "console=ttyAMA0,115200"

sudo reboot
Simple installation
On Raspberry pi zero, 
mkdir /home/pi/nextion;(wget https://github.com/Tibus/TouchScreen-For-NanoDLP/releases/download/V0.3/pizero.tar.gz --no-check-certificate -O - | tar -C /home/pi/nextion -xz);cd /home/pi/nextion; sudo ./setup.sh

Did I follow the wrong directions? the touch screen responds but nothing happens or changes other than it showing me touching the button.

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Nextion connects, buttons not responding

You do not need tibus if you are going to use nanodlp internal support.

biqut2

Member

Registered: 2019-07-26

Posts: 4

Re: Nextion connects, buttons not responding

You do not need tibus if you are going to use nanodlp internal support.

Funny thing is it wouldn't work before or after I took the extra steps from the GitHub page. It exhibited the same behavior. I'm using a genuine Nextion 3.5" and the tft file from the download on the nanodlp download page. Is that the right file?

biqut2

Member

Registered: 2019-07-26

Posts: 4

Re: Nextion connects, buttons not responding

FIXED: I finally found these instructions and followed them.

Nextion displays being supported by NanoDLP internally.
To use them you need to load NanoDLP HMI on Nextion Display and enter correct address on NanoDLP.
If you are connecting Nextion to Raspberry Pi without Serial2USB adapter, you need to enable serial on Raspberry Pi by following steps below:
SSH into your Raspberry Pi
Run command: sudo raspi-config
Enable Serial
sudo nano /boot/cmdline.txt
remove command "console=ttyAMA0,115200" and "console=serial0,115200"
sudo nano /boot/config.txt
Add following line: dtoverlay=pi3-disable-bt
sudo reboot