Tutorial 3b - autoShift
=======================
Some multi-layer keyboards have a symbols layer that writes symbols without using the shift key:

    ~ ! @ # $ % ^ & * () _ {} | < > : ?

The keybrd library does this by automatically sending a MODIFIERKEY_SHIFT scancode.

Two keybrd classes use AutoShift:
* Code_ScS
* Code_ScNS

The [keybrd_3_autoShift.ino](keybrd_3_autoShift/keybrd_3_autoShift.ino) sketch explains the AutoShift feature.
It will run on the basic breadboard keyboard described in [tutorial_1_breadboard_keyboard.md](tutorial_1_breadboard_keyboard.md).
After reading the sketch you too will be able to automatically shifted characters.

![basic breadboard keyboard](keybrd_1_breadboard/breadboard_keyboard_2x2.JPG "basic breadboard keyboard")

Exercises
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1) Modify the keybrd_3_autoShift_annotated sketch to make a 3-layer keyboard with a default layer and two Code_LayerHold objects.

| Layout | **0** | **1** |
|:------:|:-----:|:-----:|
|  **0** | a ! 6 | b @ 7 |
|  **1** |. sym .|. num .|

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