Hello good day to all, I'm trying to learn how to mirroring what is displayed on a TFT LCD to a mobile phone using bluetooth or wifi, how do I do this?
I strongly doubt that this kind of mirroring is possible due to the limitations of the Bluetooth transmission channel.
It would be more correct not to transfer the image via BT, but to send commands to create the similar image directly on the phone.
For example, if on the TFT screen you have a circle, then instead of transmitting the entire screen pixel by pixel, you can simply transmit the command “draw a circle with diameter D with center at point x y"
what Arduino is driving your TFT ??
Chromecast or Airplay are quite costly in terms of system requirements, I doubt it's easily implemented on most Arduinos
i want to make something like this video how to do it through wifi or bluetooth?
There is no screen mirroring via Wi-Fi or BT on the video.
Judging by the pictures, the system works just like a WWW-interface
Your are seeing this
https://www.maxwell-fa.com/remote-access-temperature-control-system_p92.html
Likely a web or custom app interface to an IOT backend it’s not mirroring
I am not saying that it is made using bluetooth or wifi, i just want to know if it is possible to display what is shown on the LCD should display on the phone using IoT is it possible to do like that I just want to know it is possible or not using IOT
No you can't do screen mirroring (in an easy way)
then how did they show what is being displayed on their LCD to their phone? I would like to know
Hi @purushotham2608 and welcome.
What @J-M-L mean is that it can be done, but it would be hard to code.
I don't think they mirror the screen, but another approach that is more plausible; the GUI layout is easy to use both native and in a webpage. So 1st display shows raw data, 2nd and 3rd uses a web interface that loads the graphics, then fetch the data and put it in place. As you can see in the 3rd display, it's in a web page, in the 2nd you can't see that due to being full screen mode.
You could look into VNC to learn more about mirroring, it's open source remote desktop software. I haven't heard of any VNC implementation for Arduino however.
Take care!
likely this:
the system exports its status through IOT and the information is stored in a backend server somewhere in the cloud.
the phone has an application that requests the latest status from that server and displays it
any "computer" able to make a request to the server can present the information
the devices doing the presentation do not talk to the device itself
MQTT is a common approach to this. If you want to know more read MQTT Things and Channels - Bindings | openHAB for example
1 Like
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.