nanoDLP

sandong

Member

Registered: 2019-12-17

Posts: 5

nanodlp service

I want to upgrade Nextion Module from RBPi.
I tested to upgrade by serial(ttyAMA0).
Program emits error :
=> SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
I guess when it access to upgrade Nextion module, nanodlp also access to Nextion Panel.
So I want to stop nanodlp service. After stop, I want to upgrade Nextion module.
After upgrade, I want to start nanodlp service.

So I want to know how to stop/start nanodlp service.

Thank you.

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: nanodlp service

sudo service nanodlp stop

sandong

Member

Registered: 2019-12-17

Posts: 5

Re: nanodlp service

Thanks for your quick response.

I tried "sudo service nanodlp stop".

But system halt.
So I rebooted RPi.

I want another method.
Is there a way to disable nanodlp to use ttyAMA0?

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: nanodlp service

sudo killall nanodlp -9
sudo service nanodlp stop