B4R by B4A

Some time ago, a B4X user asked me this question: "Do you know any two-line displays that can be controlled via Bluetooth or WiFi?" I answered: "probably" and had fun proving it here. Of course this project could be improved by using your Smartphones keyboard with the use of the B4A "IME" library

And I had fun adding a small keyboard to write on the LCD screen, the typed characters are transmitted via their ASCII codes to the B4R application, this gives a new completed B4A application and a new B4R application. The eraser still works as well as the test button.

You can connect 2 LCD screens to an Arduino UNO board

But they will display exactly the same texts. If you display a text intended for a screen of 4 lines of 20 characters, only the first 16 characters of the first two lines will be displayed on a screen of 2 lines of 16 characters