Display System:

• max 254 menu elements
• max 254 menu elements per layer
• max 6 layers from root (configurable in LCDMenuLib.h)
• max support for 6 buttons up, down, left, right, back/quit, enter
• min 3 buttons needed up, down, enter
• separation of structural and functional level
• support for initscreen which is shown after x secounds or at begin (configurable)
• scrollbar when more menu elments in a layer then rows
• possibility to jump from one menu elment directly to another
• support for many different lcd librarys
• the menu function are only updated when a button is hit or a trigger is set
• different triggers for display function
• many small function for other things

Backend System

• max 255 backend function
• backend function work with different ms times, not with interrupts
• backend function can be stopped and started
• backend function use three functions setup,loop,stable
• backend function can be grouped, groups can start / stop together
• backend signals use one bit to transfer a status bit between backend functions

LCDMenuLib vs LCDMenuLib2

• LCDMenuLib2 is a new version and not backward compatible to this version
• The following things have been changed
• complete rewritten version of LCDMenuLib, because the scope of the makros was too complex to add new functionality.
• remove the backend system (you can use every other task system)
• remove the hidden groups (limited to 8) and add a new system to handle hidden elements without a limitation
• add: a screensaver functionality
• add: esp32 and esp8266 support without using special makros
• add: a method to change parameters directly in the menu (without calling a menu function) or add a time
• add: multi language support (not all special characters [based on the hd44780])
• add: parameters can used on jumpToFunc or jumpToID functions
• add: a function to set the cursor direct to an element of the menu

The LCDMenuLib2 is complexer for beginners. All normal menus with no special things can be released with LCDMenuLib.

Description (german): http://forum.arduino.cc/index.php?topic=73816.0

Images:

• 20x4

• glcd with u8glib

• serial monitor for testing or programming without a connected display

MIT License

Copyright (c) [2018] [Nils Feldkämper]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.