bl_mcu_sdk/examples/lvgl/demos/keypad_encoder/README.md

# Keypad and Encoder demo

## Overview

LVGL allows you to control the widgets with keypad and/or encoder without touchpad.
This demo shows how to handle buttons, drop-down lists, rollers, sliders, switches and text inputs without touchpad.
Learn more about the touchpad-less usage of LVGL [here](https://docs.lvgl.io/master/overview/indev.html#keypad-and-encoder).

![Keypad and encoder navigation in LVGL embedded GUI library](screenshot1.gif)

## Run the demo
- In `lv_conf.h` or equivalent places set `LV_USE_DEMO_KEYPAD_AND_ENCODER 1`
- After `lv_init()` and initializing the drivers call `lv_demo_keypad_encoder()`
[feat] add lvgl components,port and demo 2021-04-27 12:29:25 +08:00			`# Keypad and Encoder demo`

			`## Overview`

[style] delete trailing whitespace 2021-06-21 14:45:33 +08:00			`LVGL allows you to control the widgets with keypad and/or encoder without touchpad.`
			`This demo shows how to handle buttons, drop-down lists, rollers, sliders, switches and text inputs without touchpad.`
[refactor] refactor mcu sdk framework, add BL702,BL616,BL808 CHIP support 2022-10-21 10:17:49 +08:00			`Learn more about the touchpad-less usage of LVGL [here](https://docs.lvgl.io/master/overview/indev.html#keypad-and-encoder).`
[feat] add lvgl components,port and demo 2021-04-27 12:29:25 +08:00
[refactor] refactor mcu sdk framework, add BL702,BL616,BL808 CHIP support 2022-10-21 10:17:49 +08:00			`![Keypad and encoder navigation in LVGL embedded GUI library](screenshot1.gif)`
[feat] add lvgl components,port and demo 2021-04-27 12:29:25 +08:00
			`## Run the demo`
[refactor] refactor mcu sdk framework, add BL702,BL616,BL808 CHIP support 2022-10-21 10:17:49 +08:00			- In `lv_conf.h` or equivalent places set `LV_USE_DEMO_KEYPAD_AND_ENCODER 1`
[feat] add lvgl components,port and demo 2021-04-27 12:29:25 +08:00			- After `lv_init()` and initializing the drivers call `lv_demo_keypad_encoder()`