keybrd/examples/keybrd_shift_register/keybrd_shift_reg.ino

/* keybrd_shift_reg.ino
this works on Teensy LC 1*bb, active low and active high

| Layout | **0** | **1** |
|:------:|-------|-------|
|  **0** | a     | b     |
|  **1** | c     | d     |
*/
// ################## GLOBAL ###################
// ================= INCLUDES ==================
#include <Debug.h>

//IOE Ports
#include "IOExpanderPort.h"
#include <RowPort_MCP23018.h>
#include <ColPort_MCP23018.h>

//Codes
#include <Code_Sc.h>

//Matrix
#include <Row_uC.h>
#include <SPI.h>
#include <Row_ShiftRegisters.h>

// =============== CONFIGURATION ===============
const unsigned int RowBase::DELAY_MICROSECONDS = 500; //500

//activeLow  has diode cathode (band) on row
//activeHigh has diode cathode (band) on col, and pull down resistors on cols
//0=active low, 1= active high
const bool RowScanner_PinsArray::ACTIVE_HIGH = 0;

Debug debug;

// ================= LEFT PINS =================
uint8_t readPins[] = {14, 15};
uint8_t READ_PIN_COUNT = sizeof(readPins)/sizeof(*readPins);

// =================== CODES ===================
Code_Sc s_a(KEY_A);
Code_Sc s_b(KEY_B);
Code_Sc s_c(KEY_C);
Code_Sc s_d(KEY_D);
Code_Sc s_e(KEY_E);
Code_Sc s_f(KEY_F);
Code_Sc s_g(KEY_G);
Code_Sc s_h(KEY_H);
Code_Sc s_i(KEY_I);

Code_Sc s_0(KEY_0);
Code_Sc s_1(KEY_1);
Code_Sc s_2(KEY_2);
Code_Sc s_3(KEY_3);
Code_Sc s_4(KEY_4);
Code_Sc s_5(KEY_5);
Code_Sc s_6(KEY_6);
Code_Sc s_7(KEY_7);
Code_Sc s_8(KEY_8);
Code_Sc s_z(KEY_Z);

// ================= LEFT ROWS =================
Key* ptrsKeys_L0[] = { &s_a, &s_b };
Row_uC row_L0(0, readPins, READ_PIN_COUNT, ptrsKeys_L0);

Key* ptrsKeys_L1[] = { &s_c, &s_d };
Row_uC row_L1(1, readPins, READ_PIN_COUNT, ptrsKeys_L1);

// ================= RIGHT ROWS ================
//typedef should be large in /home/wolfv/Documents/Arduino/keybrd_proj/keybrd/src/config_keybrd.h
//Row_ShiftRegisters(STROBE_PIN, SHIFT_LOAD, ptrsKeys[], KEY_COUNT)
//the s_z are place holders and should not print
/*
//BYTE_COUNT 1, prints 0 1
Key* ptrsKeys_R0[] = { &s_0, &s_a, &s_b, &s_c, &s_1, &s_d, &s_e, &s_f };
const uint8_t KEY_R0_COUNT = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
Row_ShiftRegisters row_R0(8, 10, ptrsKeys_R0, KEY_R0_COUNT);
*/
/*
//prints 0 1 2
Key* ptrsKeys_R0[] = { &s_0, &s_z, &s_z, &s_z, &s_1, &s_z, &s_z, &s_z,
                       &s_2, &s_z, &s_z, &s_z };
const uint8_t KEY_R0_COUNT = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
Row_ShiftRegisters row_R0(8, 10, ptrsKeys_R0, KEY_R0_COUNT);
*/
/*
//prints 0 1 2 3
Key* ptrsKeys_R0[] = { &s_0, &s_z, &s_z, &s_z, &s_1, &s_z, &s_z, &s_z,
                       &s_2, &s_z, &s_z, &s_z, &s_3, &s_z, &s_z, &s_z };
const uint8_t KEY_R0_COUNT = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
Row_ShiftRegisters row_R0(8, 10, ptrsKeys_R0, KEY_R0_COUNT);
*/
/*
//prints 0 1 2 3 4 5
Key* ptrsKeys_R0[] = { &s_0, &s_z, &s_z, &s_z, &s_1, &s_z, &s_z, &s_z,
                       &s_2, &s_z, &s_z, &s_z, &s_3, &s_z, &s_z, &s_z,
                       &s_4, &s_z, &s_z, &s_z, &s_5, &s_z, &s_z, &s_z };
const uint8_t KEY_R0_COUNT = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
Row_ShiftRegisters row_R0(8, 10, ptrsKeys_R0, KEY_R0_COUNT);
*/

//prints 0 1 2 3 4 5 6 7 8
Key* ptrsKeys_R0[] = { &s_0, &s_z, &s_z, &s_z, &s_1, &s_z, &s_z, &s_z,
                       &s_2, &s_z, &s_z, &s_z, &s_3, &s_z, &s_z, &s_z,
                       &s_4, &s_z, &s_z, &s_z, &s_5, &s_z, &s_z, &s_z,
                       &s_6, &s_z, &s_z, &s_z, &s_7, &s_z, &s_8 }; //31-key limit because endRow
const uint8_t KEY_R0_COUNT = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
Row_ShiftRegisters row_R0(8, 10, ptrsKeys_R0, KEY_R0_COUNT);

//unresponsive
Key* ptrsKeys_R1[] = { &s_a, &s_z, &s_z, &s_z, &s_b, &s_z, &s_z, &s_z,
                       &s_c, &s_z, &s_z, &s_z, &s_d, &s_z, &s_z, &s_z,
                       &s_e, &s_z, &s_z, &s_z, &s_f, &s_z, &s_z, &s_z,
                       &s_g, &s_z, &s_z, &s_z, &s_h, &s_z, &s_i }; //31-key limit because endRow
const uint8_t KEY_R1_COUNT = sizeof(ptrsKeys_R1)/sizeof(*ptrsKeys_R1);
Row_ShiftRegisters row_R1(9, 10, ptrsKeys_R1, KEY_R1_COUNT);

const uint8_t LED_PIN = 16;                     //indicates wait

//sometimes OS takes 6 seconds to recongnize keyboard, LED blinks from the begining
void wait()
{
    for (uint8_t count = 0; count < 6; count++)
    {
        //print count
        Keyboard.print(count);
        Keyboard.print(F(" "));

        //blink LED
        digitalWrite(LED_PIN, HIGH);
        delay(900);
        digitalWrite(LED_PIN, LOW);
        delay(100);
    }
}
// ################### MAIN ####################
void setup()
{
    pinMode (LED_PIN, OUTPUT);
    Keyboard.begin();
    SPI.begin();

    wait();
    row_R0.begin();
    row_R1.begin();
    Keyboard.print(F("keybrd_shift_reg.ino "));
    debug.print_free_RAM();
}

void loop()
{
    row_L0.process();
    row_L1.process();

    row_R0.process();
    row_R1.process();

//delay(100);
//Keyboard.println("");
//debug.print_microseconds_per_scan();
}