118 righe
3.7 KiB
C++
118 righe
3.7 KiB
C++
/* keybrd_3_multi-layer_annotated.ino
|
|
|
|
This sketch:
|
|
is firmware for a simple 2-layer keyboard
|
|
runs on the first two rows and columns of a breadboard keyboard
|
|
|
|
| Layout | **0** | **1** |
|
|
|:------:|-------|-------|
|
|
| **0** | shift | a 1 |
|
|
| **1** | fn | b 2 |
|
|
|
|
Each cell in the table's body represents a key.
|
|
The layered keys in column 1 have two layers; one character for each layer.
|
|
Letters 'a' and 'b' are on the normal layer. Numbers '1' and '2' are on the fn layer.
|
|
Holding the fn key down makes it the active layer. Releasing the fn key restores the normal layer.
|
|
*/
|
|
// ################## GLOBAL ###################
|
|
// ================= INCLUDES ==================
|
|
//Keys
|
|
#include <Code_Sc.h>
|
|
#include <LayerState.h>
|
|
#include <Code_LayerHold.h>
|
|
#include <Key_LayeredKeysArray.h>
|
|
|
|
//Matrix
|
|
#include <Row.h>
|
|
#include <Scanner_uC.h>
|
|
#include <ScanDelay.h>
|
|
|
|
// ============ SPEED CONFIGURATION ============
|
|
ScanDelay scanDelay(9000);
|
|
|
|
// ================== SCANNER ==================
|
|
uint8_t readPins[] = {14, 15};
|
|
uint8_t readPinCount = sizeof(readPins)/sizeof(*readPins);
|
|
|
|
Scanner_uC scanner(LOW, readPins, readPinCount);
|
|
|
|
/* =================== CODES ===================
|
|
The CODES section instantiates six codes, one for each item in the layout.
|
|
*/
|
|
/* ---------------- LAYER CODE -----------------
|
|
enum assigns id numbers to the layers.
|
|
*/
|
|
enum layers { NORMAL, FN };
|
|
|
|
/* layerState keeps track of the active layer.
|
|
*/
|
|
LayerState layerState;
|
|
|
|
/*
|
|
NORMAL=0 and FN=1. LayerState's default layer id is 0.
|
|
The Code_LayerHold constructor has two parameters:
|
|
1) the layer that will be active while the key is held down
|
|
2) a LayerState that will keep track of the active layer
|
|
When l_fn is pressed, it tells layerState to change the active layer to 1.
|
|
When l_fn is released, it tells layerState that layer 1 is released, and layerState restores the default layer.
|
|
*/
|
|
Code_LayerHold l_fn(FN, layerState);
|
|
|
|
// ---------------- SCAN CODES -----------------
|
|
Code_Sc s_a(KEY_A);
|
|
Code_Sc s_b(KEY_B);
|
|
Code_Sc s_1(KEY_1);
|
|
Code_Sc s_2(KEY_2);
|
|
Code_Sc s_shift(MODIFIERKEY_LEFT_SHIFT);
|
|
|
|
/* =================== KEYS ====================
|
|
Here we pack Codes into keys.
|
|
The Key_LayeredKeysArray constructor takes one array of Code pointers - one Code object per layer.
|
|
|
|
The Key object names in this sketch start with a "k_" followed by row-column coordinates.
|
|
*/
|
|
Key* const ptrsCodes_01[] = { &s_a, &s_1 };
|
|
Key_LayeredKeysArray k_01(ptrsCodes_01);
|
|
|
|
Key* const ptrsCodes_11[] = { &s_b, &s_2 };
|
|
Key_LayeredKeysArray k_11(ptrsCodes_11);
|
|
|
|
/* Key_LayeredKeysArray has a reference to layerState.
|
|
Thus Key_LayeredKeysArray can call layerState to get the active layer id.
|
|
*/
|
|
LayerStateInterface& Key_LayeredKeysArray::refLayerState = layerState;
|
|
|
|
/* HOW LAYERED OBJECTS WORK
|
|
When a Key_LayeredKeysArray object is pressed, it gets the active layer id from layerState.
|
|
It then uses the layer id as an array index to call the Code of the active layer.
|
|
The Code object then sends its scancode over USB.
|
|
*/
|
|
|
|
/* =================== ROWS ====================
|
|
Here we pack Key pointers into row objects.
|
|
|
|
Codes are a kind of Key that only have one layer.
|
|
So rows can contain a mix of codes and multi-layered keys.
|
|
Arrays ptrsKeys_0[] and ptrsKeys_1[] contain both Code pointers and Key pointers.
|
|
*/
|
|
Key* const ptrsKeys_0[] = { &s_shift, &k_01 };
|
|
uint8_t keyCount_0 = sizeof(ptrsKeys_0)/sizeof(*ptrsKeys_0);
|
|
Row row_0(scanner, 0, ptrsKeys_0, keyCount_0);
|
|
|
|
Key* const ptrsKeys_1[] = { &l_fn, &k_11 };
|
|
uint8_t keyCount_1 = sizeof(ptrsKeys_1)/sizeof(*ptrsKeys_1);
|
|
Row row_1(scanner, 1, ptrsKeys_1, keyCount_1);
|
|
|
|
// ################### MAIN ####################
|
|
void setup()
|
|
{
|
|
Keyboard.begin();
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
row_0.process();
|
|
row_1.process();
|
|
scanDelay.delay();
|
|
}
|