I welcome everyone. I bought something like that from the Chinese, such modules.
The modules are not bad, in terms of the function I need, but that is not the problem. The problem is one big flaw, namely. There is a button on the back of the board.
When you press this button, when the device is turned on, the display backlight turns on and off. But the trouble is that when the power is turned on, the display backlight is turned off by default, and you need to turn it on, which is very interesting, with this button, which is located on the back of the module and after installation there is no access to it. And when you turn off the power, the selection is reset, and the next time you turn on the display again without backlight. I don’t want to consider the option of displaying a button on the panel, I’m planning to do everything minimalistly, but I need the display to be highlighted when the device is turned on. The option with shortening the button is not suitable, if you hold it pressed while power is applied, the module switches to the setting mode. The LED that illuminates the display does not come out directly, the module starts to behave inappropriately. How to solve this in the simplest and most energy-efficient way? The module is supposed to be used in a portable device, I do not want to spend extra costs (but the display should be highlighted).