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#1 2019-04-17 23:39:46

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Nextion problem Help TFT not working well

hello i bought https://www.aliexpress.com/item/NanoDLP … 4c4dGQ8PdD


i got this TFT from https://github.com/Tibus/TouchScreen-For-NanoDLP  and i modified the HMI to fix my screen 5 inch base not advance

after trying Nano DLP TFT its not working same error stuck at connecting to .....

and i want to change the rxd and txd GPIO numbers because that shield use TXD  number 15 and RxD pin number 16

and i check nanodlp files it says


txd1_pin                GPIO pin for TXD1 (14, 32 or 40 - default 14)

        rxd1_pin                GPIO pin for RXD1 (15, 33 or 41 - default 15)

so both TFT stuck at connecting to printer , is the shield is broken ? or system error ?  i am using pi 3 b +   and os ( Simple Installating on Raspberry Pi ) which is ( NanoDLP SD card image file )

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#2 2019-04-17 23:53:14

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

maybe i dont need to edit the GPIO , then what should i do ?

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#3 2019-04-17 23:56:51

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,541

Re: Nextion problem Help TFT not working well

NanoDLP internally support nextion displays you do not need external software. Try it and let me know if it cause any issue.

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#4 2019-04-18 08:44:20

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

still the same problem connecting both TFT nanodlp's or other's give the same results connecting and nothing happen

https://www.nanodlp.com/download/#nextion  i pick the correct model and upload on sd and flash it , still not working , so what should i do

Last edited by nesquik011 (2019-04-18 08:45:41)

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#5 2019-04-18 12:43:15

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

https://ibb.co/wsx6kNv


check the image please , i did install linux lite and downloaded nanodlp + update and try to get the working serial and enable serial and still not working

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#6 2019-04-18 13:04:23

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

updating ****


after using that code

mkdir /home/pi/nextion;(wget https://github.com/Tibus/TouchScreen-Fo … 2_3.tar.gz --no-check-certificate -O - | tar -C /home/pi/nextion -xz);cd /home/pi/nextion; sudo ./setup.sh


now it pass the connecting , but when i press on any thing like plates , projector  nothing happen and i am using port /dev/ttyAMA0   

i did try another tft other than nanodlp  the same , when i press on settings or plates nothing happen at all

so what should i do now

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#7 2019-04-18 13:36:51

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

updating*****

i decided to try the nanodlp image , the simple way of installation

i used nanodlp TFT files 5 inch basic , still not working , it stuck at connectiong , so i decided to go to shh and enable the serial port i did , but didnt work , then i used

mkdir /home/pi/nextion;(wget https://github.com/Tibus/TouchScreen-Fo … 2_3.tar.gz --no-check-certificate -O - | tar -C /home/pi/nextion -xz);cd /home/pi/nextion; sudo ./setup.sh

to fix things , it didnt work so how can i configure it

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#8 2019-04-19 05:52:03

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,541

Re: Nextion problem Help TFT not working well

You need to first enable one of softwares, nanodlp internal nextion or tibus one. They would not play along well.
If it passes connecting screen it is highly likely communication does not happen correctly as you have enabled two reader on same /ttyAMA0

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#9 2019-04-19 13:03:37

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

shahin can you tell me how to do it from the beginning , lets say i made new clean copy of nanodlp , then what should i do now to enaml the ttyAMA0 to make the nextion work ?

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#10 2019-04-19 17:46:54

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,541

Re: Nextion problem Help TFT not working well

Just follow on-screen help, it should be enough. If you want easier way to use it, just use usb-serial adapter to connect nextion. No additional step needed to enable it.

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#11 2019-04-20 21:23:04

nesquik011
Member
Registered: 2018-08-17
Posts: 32

Re: Nextion problem Help TFT not working well

and where is the on-screen help ? and what usb serial adapter do you suggest ?

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#12 2019-04-22 19:48:59

Shahin
Administrator
Registered: 2016-02-17
Posts: 2,541

Re: Nextion problem Help TFT not working well

Click on question mark above input box.

FT232 based USB/serial adapters working great.

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