/* requires keypad library by Mark Stanley, Alexander Brevig from: http://www.arduino.cc/playground/Code/Keypad Uses the PJRC Teensy++ 2.0 and Teensyduino libraries, specifically USB HID and Keyboard(): http://www.pjrc.com/teensy/teensyduino.html */ #include /* Declares the matrix rows/cols of the Apple IIe keyboard. More information here: http://apple2.info/wiki/index.php?title=Pinouts#Apple_.2F.2Fe_Motherboard_keyboard_connector */ // Prevent compiler warning about casts from unsigned ints to chars #define C(x) ((char) (x)) const byte ROWS = 10; // rows const byte COLS = 8; // columns char keys[ROWS][COLS] = { { C(KEY_ESC), C(KEY_TAB), C(KEY_A), C(KEY_Z), C(KEYPAD_SLASH), 0, C(KEYPAD_ASTERIX), C(KEY_ESC)}, { C(KEY_1), C(KEY_Q), C(KEY_D), C(KEY_X), 0, 0, 0, 0}, { C(KEY_2), C(KEY_W), C(KEY_S), C(KEY_C), C(KEYPAD_0), C(KEYPAD_4), C(KEYPAD_8), 0}, { C(KEY_3), C(KEY_E), C(KEY_H), C(KEY_V), C(KEYPAD_1), C(KEYPAD_5), C(KEYPAD_9), C(KEYPAD_MINUS)}, { C(KEY_4), C(KEY_R), C(KEY_F), C(KEY_B), C(KEYPAD_2), C(KEYPAD_6), C(KEYPAD_PERIOD), C(KEYPAD_ENTER)}, { C(KEY_6), C(KEY_Y), C(KEY_G), C(KEY_N), C(KEYPAD_3), C(KEYPAD_7), C(KEYPAD_PLUS), 0}, { C(KEY_5), C(KEY_T), C(KEY_J), C(KEY_M), C(KEY_BACKSLASH), C(KEY_TILDE), C(KEY_ENTER), C(KEY_BACKSPACE)}, { C(KEY_7), C(KEY_U), C(KEY_K), C(KEY_COMMA), C(KEY_EQUAL), C(KEY_P), C(KEY_UP), C(KEY_DOWN) }, { C(KEY_8), C(KEY_I), C(KEY_SEMICOLON), C(KEY_PERIOD), C(KEY_0), C(KEY_LEFT_BRACE), C(KEY_SPACE), C(KEY_LEFT) }, { C(KEY_9), C(KEY_O), C(KEY_L), C(KEY_SLASH), C(KEY_MINUS), C(KEY_RIGHT_BRACE), C(KEY_QUOTE), C(KEY_RIGHT) }, }; char Fkeys[2][10] = { {C(KEY_1), C(KEY_2), C(KEY_3), C(KEY_4), C(KEY_5), C(KEY_6), C(KEY_7), C(KEY_8), C(KEY_9), C(KEY_0)}, {C(KEY_F1), C(KEY_F2), C(KEY_F3), C(KEY_F4), C(KEY_F5), C(KEY_F6), C(KEY_F7), C(KEY_F8), C(KEY_F9), C(KEY_F10)} }; /* XO X1 X2 X3 | X4 X5 X6 X7 ------------------------------------+-------------------------------- YO ESC TAB A Z | / ) * ESC | Y1 1! Q D X | DOWN UP LEFT RIGHT | Y2 2@ W S C | 0 4 8 ( | Y3 3# E H V | 1 5 9 - | Y4 4$ R F S | 2 6 . RETURN | Y5 6^ Y G N | 3 7 + , +---------------------------------- Y6 5% T J M \| `~ RETURN DELETE Y7 7& U K ,< += P UP DOWN Y8 8* I ;: .> 0) [{ SPACE LEFT Y9 9( O L /? -_ ]} '" RIGHT The RetroConnector IIe maps the 26 Apple IIe pins to Teensy++ pins IIe Col/Row Teensy 1 Y0 10 2 Y1 45 3 +5V +5v 4 Y2 44 5 SW1/CAPL 9 6 Y3 43 7 SW0/OAPL 8 8 Y4 42 9 CAPLOCK* 7 10 Y5 41 11 CNTL* 5 12 Y8 40 13 GND GND 14 X0 39 15 RESET* 4 16 X2 38 17 X7 3 18 X1 18 19 X5 2 20 X3 19 21 X4 1 22 Y9 20 23 Y6 0 24 SHFT* 21 25 Y7 27 26 X6 22 */ byte rowPins[ROWS] = { // Y0 - Y9 10, 45, 44, 43, 42, 41, 0, 27, 40, 20}; //connect to the row pinouts of the keypad byte colPins[COLS] = { // X0 - X7 39, 18, 38, 19, 1, 2, 22, 3}; //connect to the column pinouts of the keypad Keypad KPD = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); // these pins are special in that they are dis/connected to ground, instead of to a row/col const int SHIFTPin = 21; // the pin that the shift key is attached to const int CTRLPin = 5; // the pin that the control key is attached to const int APPLEPin1 = 8; // the pin that the open-apple key is attached to const int APPLEPin2 = 9; // the pin that the closed-apple key is attached to const int CAPSPin = 7; #define LED 6 uint16_t modifierKeys[4]; #define KEY_CAPS_UNLOCK 0 boolean resetCapsLock = false; // Allows one caps unlock signal. unsigned long dTime = 0; boolean CAPSLock = false; // Initialize this to a reasonable value. boolean FKEYS = false; // used to set numbers to F-Key equivalent. currently tied to caps lock void setup() { pinMode(SHIFTPin, INPUT_PULLUP); digitalWrite(SHIFTPin, HIGH); pinMode(CTRLPin, INPUT_PULLUP); digitalWrite(CTRLPin, HIGH); pinMode(APPLEPin1, INPUT); digitalWrite(APPLEPin1, LOW); pinMode(APPLEPin2, INPUT); digitalWrite(APPLEPin2, LOW); pinMode(CAPSPin, INPUT_PULLUP); digitalWrite(CAPSPin, HIGH); // DEBUG // Serial.begin(115200); pinMode(LED, OUTPUT); // This gives time for the keyboard to hook up to the PC. // Otherwise the caps lock state may be incorrect. delay(1000); } void loop() { //probably should be on an interrupt, to catch high->low transition // Only do something if the pin is different from previous state. boolean newCaps = digitalRead(CAPSPin) ? false : true; if ( (CAPSLock != newCaps) && !resetCapsLock) { CAPSLock = newCaps; // Remember new CAPSLock. Keyboard.set_key6((uint8_t) KEY_CAPS_LOCK); // Send KEY_CAPS_LOCK. dTime = millis(); // Reset delay timer. resetCapsLock = true; // Serial.print("Caps = "); // Serial.println(CAPSLock); // Turn on the LED for caps lock. digitalWrite(LED, CAPSLock ? HIGH : LOW); } if ( resetCapsLock && (millis()-dTime) > 10) { Keyboard.set_key6(KEY_CAPS_UNLOCK); resetCapsLock = false; } // If caps lock is set, then turn number keys into function keys. FKEYS = CAPSLock; /*char CAPSLock = digitalRead(CAPSPin); if (CAPSLock == LOW) { Keyboard.set_key6(KEY_CAPS_LOCK); } else { Keyboard.set_key6(0);89 } */ char SHIFTState = digitalRead(SHIFTPin); if (SHIFTState == LOW) { modifierKeys[0] = MODIFIERKEY_SHIFT; } else { modifierKeys[0] = 0; } char CTRLState = digitalRead(CTRLPin); if (CTRLState == LOW) { modifierKeys[1] = MODIFIERKEY_CTRL; } else { modifierKeys[1] = 0; } char OAPPLEState = digitalRead(APPLEPin1); char CAPPLEState = digitalRead(APPLEPin2); /* if (OAPPLEState == HIGH) { modifierKeys[2] = MODIFIERKEY_GUI; } else if (CAPPLEState == HIGH) { modifierKeys[2] = MODIFIERKEY_GUI; } else { modifierKeys[2] = 0; } digitalWrite(APPLEPin1, LOW); digitalWrite(APPLEPin2, LOW); */ // *** NOW USING CLOSED APPLE AS ALT/OPTION if (OAPPLEState == HIGH) { modifierKeys[2] = MODIFIERKEY_GUI; } else { modifierKeys[2] = 0; } if (CAPPLEState == HIGH) { modifierKeys[3] = MODIFIERKEY_ALT; } else { modifierKeys[3] = 0; } // to use the TILDE key as ALT/OPTION /* modifierKeys[3] = 0; if( KPD.isPressed(KEY_TILDE) ) { modifierKeys[3] = MODIFIERKEY_ALT; } */ // *** NOW USING CLOSED APPLE AS ALT/OPTION Keyboard.set_modifier( modifierKeys[0] | modifierKeys[1] | modifierKeys[2] | modifierKeys[3] ); KPD.getKeys(); // Scan for all pressed keys. 6 Max, + 4 modifiers. Should be plenty, but can be extended to 10+ // Set keyboard keys to default values. Keyboard.set_key1(0); Keyboard.set_key2(0); Keyboard.set_key3(0); Keyboard.set_key4(0); Keyboard.set_key5(0); //Keyboard.set_key6(0); /* based on suggestion from Craig Brooks uses CAPS LOCK to turn number keys into F-Key equivalent. */ // Update keyboard keys to active values. if ( KPD.key[0].kchar && ( KPD.key[0].kstate==PRESSED || KPD.key[0].kstate==HOLD )) { //Serial.println(FKEYS); if (FKEYS) { // number keys 1 through 0 for f1 - f10 if ((KPD.key[0].kchar >= 0x1E) && (KPD.key[0].kchar <= 0x27)) { KPD.key[0].kchar += 0x1C; // Serial.println( KPD.key[0].kchar, HEX ); } else if ( KPD.key[0].kchar == 0x2D || KPD.key[0].kchar == 0x2E ) { // - and = for f11 and f12 KPD.key[0].kchar += 0x17; } } Keyboard.set_key1( KPD.key[0].kchar ); } if ( KPD.key[1].kchar && ( KPD.key[1].kstate==PRESSED || KPD.key[1].kstate==HOLD )) Keyboard.set_key2( KPD.key[1].kchar ); if( KPD.key[2].kchar && ( KPD.key[2].kstate==PRESSED || KPD.key[2].kstate==HOLD )) Keyboard.set_key3( KPD.key[2].kchar ); if( KPD.key[3].kchar && ( KPD.key[3].kstate==PRESSED || KPD.key[3].kstate==HOLD )) Keyboard.set_key4( KPD.key[3].kchar ); if( KPD.key[4].kchar && ( KPD.key[4].kstate==PRESSED || KPD.key[4].kstate==HOLD )) Keyboard.set_key5( KPD.key[4].kchar ); //if( KPD.key[5].kchar && ( KPD.key[5].kstate==PRESSED || KPD.key[5].kstate==HOLD )) // Keyboard.set_key6( KPD.key[5].kchar ); Keyboard.send_now(); Keyboard.set_modifier(0); }