Raspberry Pi 4 and sensors and display

[Dylanli]

Suppose I have a Raspberry Pi 4, a sensor, and an LCD touch screen display (with a WiFi module). Can I tap some buttons on the display to read the sensor information recorded by the Raspberry Pi 4 on the network every period of time?

[davidcoton]

Yes, as long as your skills are up to it. Not particularly difficult.
The WiFi seems irrelevant?

[Dylanli]

Yes, as long as your skills are up to it. Not particularly difficult.
The WiFi seems irrelevant?

Since I had previously read an online article describing the phone with Raspberry Pi 4 and servo motors, I thought I could replace the phone with the display. The need for wifi is because I want to implement storing information on the network and being able to extract the information stored at any time and display it anywhere, anytime.

[davidcoton]

Well, that adds a significant extra layer of difficulty, not least in ensuring that your network connection is secure. But still, nothing im[possible there.

[Gavinmc42]

Places to start.
Waveshare LCD, Python based Guizero.
https://www.waveshare.com/product/raspb ... splays.htm
https://lawsie.github.io/guizero/

WiFi is a pain, I prefer wired Ethernet.
Less work to figure out and get working.
Get used to Wired Ethernet before going to Wireless.

[Dylanli]

Places to start.
Waveshare LCD, Python based Guizero.
https://www.waveshare.com/product/raspb ... splays.htm
https://lawsie.github.io/guizero/

WiFi is a pain, I prefer wired Ethernet.
Less work to figure out and get working.
Get used to Wired Ethernet before going to Wireless.

Thanks for the suggestion, but I see that there seems to be a place on my LCD to connect to the network port as well, as shown in the picture.

[B.Goode]

" I see that there seems to be a place on my LCD to connect to the network port "


The physical connector does not necessarily map to a particular technology.

rj45 connectors can be used for other technologies apart from 802.3 10/100BaseT Ethernet. They can transmit many different types of signals; such as data, voice, serial, and audio.


I suggest checking your documentation to determine the purpose of that JN400 connector.

[rpdom]

" I see that there seems to be a place on my LCD to connect to the network port "


The physical connector does not necessarily map to a particular technology.

rj45 connectors can be used for other technologies apart from 802.3 10/100BaseT Ethernet. They can transmit many different types of signals; such as data, voice, serial, and audio.


I suggest checking your documentation to determine the purpose of that JN400 connector.

You are right to question the use of the connector, but I see that it is populated with LEDs and there is a transformer just behind it, which would make it quite likely (but not certain) that it is for an Ethernet connection.

[Gavinmc42]

Looks like that is a Smart Display.
I am familiar with the 4D System Displays.
These probably have a comms protocol too.

There is also a downloadable design software called STONE TOOLBox. This is a completely free GUI design software you can use to create responsive digital module-ready user interfaces.

Not much Pi stuff needed?
Use the Pi to read the sensors and update the smart display.