123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
/* keybrd_3a_multi-layerHold.ino
|
|
|
|
This sketch:
|
|
is firmware for a simple 2-layer keyboard
|
|
runs on the basic breadboard keyboard
|
|
|
|
| Layout | **0** | **1** |
|
|
|:------:|-------|-------|
|
|
| **0** | a - | b = |
|
|
| **1** | fn | shift |
|
|
|
|
Each cell in the table's body represents a key.
|
|
Each element in a cell represents a scancode or layer code.
|
|
The keys in row 0 have two characters each, one character for each layer.
|
|
Letters 'a' and 'b' are on the normal layer. Symbols '-' and '=' are on the fn layer.
|
|
"fn" is a layer key. 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_LayeredKeys.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 ===================
|
|
/* ---------------- LAYER CODE -----------------
|
|
enum assigns layerId numbers to the layers.
|
|
NORMAL=0 and FN=1.
|
|
*/
|
|
enum layerIds { NORMAL, FN };
|
|
|
|
/*
|
|
layerState keeps track of the active layer.
|
|
*/
|
|
LayerState layerState;
|
|
|
|
/*
|
|
Code_LayerHold constructor parameters are: layerId, LayerState.
|
|
layerState is assigned to layer FN.
|
|
layerState also has a default layer 0, which implicitly is layer NORMAL.
|
|
|
|
FN is the active layer while the key is held down.
|
|
In this example, when l_fn is pressed, it tells layerState to change the active layer to FN.
|
|
When l_fn is released, it tells layerState that layer FN is released,
|
|
and layerState restores the active layer to default layerId 0 (NORMAL).
|
|
*/
|
|
Code_LayerHold l_fn(FN, layerState);
|
|
|
|
// ----------------- SCANCODES -----------------
|
|
Code_Sc s_a(KEY_A);
|
|
Code_Sc s_b(KEY_B);
|
|
Code_Sc s_minus(KEY_MINUS);
|
|
Code_Sc s_equal(KEY_EQUAL);
|
|
Code_Sc s_shift(MODIFIERKEY_LEFT_SHIFT);
|
|
|
|
/* =================== KEYS ====================
|
|
Here we pack Codes into keys.
|
|
ptrsKeys_00[] contains all the Code objects of the key, one Code object per layer.
|
|
|
|
The Key object names in this sketch start with a "k_" followed by row-column coordinates.
|
|
*/
|
|
Key* const ptrsKeys_00[] = { &s_a, &s_minus };
|
|
Key_LayeredKeys k_00(ptrsKeys_00);
|
|
|
|
Key* const ptrsKeys_01[] = { &s_b, &s_equal };
|
|
Key_LayeredKeys k_01(ptrsKeys_01);
|
|
|
|
/*
|
|
Key_LayeredKeys has a reference to layerState.
|
|
*/
|
|
LayerStateInterface& Key_LayeredKeys::refLayerState = layerState;
|
|
|
|
/* HOW LAYERED OBJECTS WORK
|
|
When a Key_LayeredKeys 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.
|
|
|
|
Rows are composed of a Key-pointer array.
|
|
Codes are a kind of Key that only have one layer.
|
|
Thus rows can contain a mix of codes and multi-layered keys (subtype polymorphism).
|
|
In this example, Key-pointer arrays contain both Code pointers (&l_fn and &s_shift)
|
|
and Key pointers (&k_00 and &k_01).
|
|
*/
|
|
Key* const ptrsKeys_0[] = { &k_00, &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, &s_shift };
|
|
uint8_t keyCount_1 = sizeof(ptrsKeys_1)/sizeof(*ptrsKeys_1);
|
|
Row row_1(scanner, 1, ptrsKeys_1, keyCount_1);
|
|
|
|
// ################### MAIN ####################
|
|
void setup()
|
|
{
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
row_0.process();
|
|
row_1.process();
|
|
scanDelay.delay();
|
|
}
|