118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
/* keybrd_MCP23018.ino
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This sketch:
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is a simple 1-layer keyboard
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runs on two matrices of a breadboard keyboard
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Controller I/O expander
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| Left | **0** | **1** | | Right | **0** | **1** |
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|-------|-------|-------| |-------|-------|-------|
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| **1** | 1 | 2 | | **1** | 3 | 4 |
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| **0** | a | b | | **0** | c | d |
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MCP23018 pin assignments
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DESTINATION PIN PIN_NUMBER PIN DESTINATION
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GND VSS 1 28 NC
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NC 2 27 GPA7
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row0 GPB0 3 26 GPA6
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row1 GPB1 4 25 GPA5
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GPB2 5 24 GPA4
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GPB4 7 22 GPA2
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GPB5 8 21 GPA1 col1
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GPB6 9 20 GPA0 col0
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GPB7 10 19 INTA
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LC 3.3V VCC 11 18 INTB
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LC 19 SCL 12 17 NC
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LC 18 SDA 13 16 /RESET VCC
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NC 14 15 ADDR GND
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*/
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// ################## GLOBAL ###################
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// ================= INCLUDES ==================
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#include <ScanDelay.h>
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#include <Code_Sc.h>
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#include <Row.h>
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//left matrix
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#include <Scanner_uC.h>
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//right matrix
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#include <Port_MCP23018.h>
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#include <Scanner_IOE.h>
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#include <LED_Port.h>
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// ============ SPEED CONFIGURATION ============
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ScanDelay scanDelay(9000);
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/* ================ LEFT SCANNER ===============
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Left matrix rows work the same as the ones in keybrd_2_single-layer.ino
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*/
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uint8_t readPins[] = {14, 15};
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const uint8_t readPinCount = sizeof(readPins)/sizeof(*readPins);
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Scanner_uC scanner_L(LOW, readPins, readPinCount);
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// =============== RIGHT SCANNER ===============
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const uint8_t IOE_ADDR = 0x20; //MCP23018 ADDR pin grounded
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Port_MCP23018 portA(IOE_ADDR, 0, 1<<0 | 1<<1 ); //read pins 0, 1
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Port_MCP23018 portB(IOE_ADDR, 1, 0);
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Scanner_IOE scanner_R(LOW, portB, portA);
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// ================= RIGHT LED =================
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LED_Port LED_capsLck(portA, 1<<7);
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// =================== CODES ===================
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Code_Sc s_a(KEY_A);
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Code_Sc s_b(KEY_B);
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Code_Sc s_c(KEY_C);
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Code_Sc s_d(KEY_D);
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Code_Sc s_1(KEY_1);
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Code_Sc s_2(KEY_2);
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Code_Sc s_3(KEY_3);
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Code_Sc s_4(KEY_4);
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// =================== ROWS ====================
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// ---------------- LEFT ROWS ------------------
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Key* ptrsKeys_L0[] = { &s_1, &s_2 };
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const uint8_t KEY_COUNT_L0 = sizeof(ptrsKeys_L0)/sizeof(*ptrsKeys_L0);
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Row row_L0(scanner_L, 0, ptrsKeys_L0, KEY_COUNT_L0);
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Key* ptrsKeys_L1[] = { &s_a, &s_b };
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const uint8_t KEY_COUNT_L1 = sizeof(ptrsKeys_L1)/sizeof(*ptrsKeys_L1);
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Row row_L1(scanner_L, 1, ptrsKeys_L1, KEY_COUNT_L1);
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// ---------------- RIGHT ROWS -----------------
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Key* ptrsKeys_R0[] = { &s_3, &s_4 };
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const uint8_t KEY_COUNT_R0 = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
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Row row_R0(scanner_R, 1<<0, ptrsKeys_R0, KEY_COUNT_R0);
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Key* ptrsKeys_R1[] = { &s_c, &s_d };
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const uint8_t KEY_COUNT_R1 = sizeof(ptrsKeys_R1)/sizeof(*ptrsKeys_R1);
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Row row_R1(scanner_R, 1<<1, ptrsKeys_R1, KEY_COUNT_R1);
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// ################### MAIN ####################
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void setup()
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{
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delay(6000);
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Keyboard.print("keybrd_MCP23018.ino ");
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scanner_R.begin();
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}
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void loop()
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{
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//left matrix
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row_L0.process();
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row_L1.process();
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//right matrix
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row_R0.process();
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row_R1.process();
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scanDelay.delay();
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//debug.printScansPerSecond();
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//debug.printMicrosecondsPerScan();
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}
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