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Attila Darazs 30a542e763 Add backlight handling for lcd_pcf8574 (#573)
* Add backlight handling for lcd_pcf8574

Switch the backlight on or off by calling id(mydisplay).backlight()
or id(mydisplay).no_backlight() in lamda functions (assuming mydisplay
is the custom id for the LCD).

* Use abstract method


Co-authored-by: Attila Darazs <attila@darazs.com>
Co-authored-by: Otto Winter <otto@otto-winter.com>
2019-06-03 19:36:00 +02:00
..