A library for microPython; it can be compared to an app launcher: just launch any function by usage of two buttons. It was tested on a Raspberry Pi Pico. All other microPython boards are expected to work (maybe the LCD driver (see here) has to be ported)

Needed peripherals

Needed for proper work are:

an LCD panel with a PCF8574T backpack
two buttons

That's it. Nothing more needed.

Component	Pin on component	Pin on Board
Backpack	SDA	GPIO0
Backpack	SCL	GPIO1
Backpack	VCC	VBUS
Backpack	GND	GND
Button 1	1	GPIO2¹
Button 1	2	GND
Button 2	1	GPIO3¹
Button 2	2	GND

[¹]: This pin can be specified at initialization of the ProgramChooser, see the examples folder.

License

This project is licensed under the GPL-v3-or-later. A copy can be found here.