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Delete SmartyKit1_40keysKeyboardDriver.ino
Deleted 40 Keys Keyboard .ino file to remove compilation error in Arduino IDE
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Computer construction kit SmartyKit
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/* SmartyKit 1 - 40 keys Keyboard driver v.1.0
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* http://www.smartykit.io/
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* Copyright (C) 2021, Sergey Panarin <sergey@smartykit.io>
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*
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#undef DEBUG
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const int KEYBOARD_ROWS = 4;
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const int KEYBOARD_COLS = 10;
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const int keyboardRowsPins[KEYBOARD_ROWS] = {A2, A3, A4, A5};
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const int keyboardColsPins[KEYBOARD_COLS] = {4, 5, 6, 7, 8, 9, 10, 11, 12, 13};
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const int latchPin = 2;
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const int clockPin = A1;
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const int dataPin = A0;
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const int keyReadyPin = 3;
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static boolean BIT7flag = false;
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const char cShift = char(0x80);
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const char cEnter = char(0x0D);
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const char cSpace = char(0x20);
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const char cDelete = char(0x7F);
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const unsigned char keyboard[KEYBOARD_ROWS][KEYBOARD_COLS] =
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{
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{'1','2','3','4','5','6','7','8','9','0',},
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{'Q','W','E','R','T','Y','U','I','O','P',},
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{'A','S','D','F','G','H','J','K','L', cEnter,},
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{cShift,'Z','X','C','V','B','N', 'M',cSpace,cDelete,},
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};
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const unsigned char keyboardShift[KEYBOARD_ROWS][KEYBOARD_COLS] =
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{
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{'!','@','#','$','%','^','&','*','(',')',},
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{'Q','{','}','[',']','\\','_','-','+','=',},
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{'A','S','D','F','G',':',';','"','\'', cEnter,},
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{cShift,'Z','<','>',',','.','?', '/',cSpace,cDelete,},
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};
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void setup() {
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// put your setup code here, to run once:
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for (int i=0; i < KEYBOARD_ROWS; i++)
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pinMode(keyboardRowsPins[i], INPUT_PULLUP);
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for (int i=0; i < KEYBOARD_COLS; i++)
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pinMode(keyboardColsPins[i], OUTPUT);
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pinMode(keyReadyPin, OUTPUT);
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digitalWrite(keyReadyPin, HIGH);
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pinMode(latchPin, OUTPUT);
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pinMode(clockPin, OUTPUT);
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pinMode(dataPin, OUTPUT);
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#ifdef DEBUG
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digitalWrite(latchPin, LOW);
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shiftOut(dataPin, clockPin, MSBFIRST, '1'); # hex code 0x31 = 0011.0001b
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digitalWrite(latchPin, HIGH);
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#endif
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Serial.begin(115200);
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}
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void loop() {
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// Read user input if available.
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if (Serial.available()){
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char c = Serial.read();
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sendCharToKeyboardPort(c);
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}
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// put your main code here, to run repeatedly:
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char c = getKey();
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if(c)
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{
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if (c == cEnter)
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Serial.println();
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else
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Serial.print(c);
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sendCharToKeyboardPort(c);
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}
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}
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char getKey()
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{
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char c = NULL;
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bool bShift = getShift();
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for (int j=0; j < KEYBOARD_COLS; j++)
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{
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scanCol(j, bShift);
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for (int i=KEYBOARD_ROWS-1; i >= 0; i--) //start from bottom-left corner with SHIFT button
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{
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int val = digitalRead(keyboardRowsPins[i]);
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if (val == 0)
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{
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c = keyboard[i][j];
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if (c == cShift)
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c = NULL;
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else
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{
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if (bShift)
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c = keyboardShift[i][j];
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}
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delay(150);
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}
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}
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}
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return c;
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}
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bool getShift()
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{
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bool bShift = false;
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int shiftCol = 0; // first column
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int shiftRow = KEYBOARD_ROWS-1; // A row
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scanCol(shiftCol, false);
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int val = digitalRead(keyboardRowsPins[shiftRow]);
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if (val == 0)
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bShift = true;
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return bShift;
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}
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void scanCol(int col, bool bShift)
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{
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if(bShift)
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digitalWrite(keyboardColsPins[0], LOW);
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for (int i=0; i < KEYBOARD_COLS; i++)
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{
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if (i == col)
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digitalWrite(keyboardColsPins[i], LOW);
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else
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digitalWrite(keyboardColsPins[i], HIGH);
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}
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}
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void cpuReadsKeyboard(void)
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{
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KeyboardBIT7_Disable();
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}
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void KeyboardBIT7_Enable()
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{
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digitalWrite(keyReadyPin, HIGH);
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BIT7flag = true;
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}
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void KeyboardBIT7_Disable()
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{
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digitalWrite(keyReadyPin, LOW);
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BIT7flag = false;
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}
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void sendCharToKeyboardPort(char c)
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{
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// while(BIT7flag == true) //wait untill the previous char is read by CPU
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// delay(5);
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digitalWrite(keyReadyPin, LOW);
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digitalWrite(latchPin, LOW);
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shiftOut(dataPin, clockPin, MSBFIRST, c);
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digitalWrite(latchPin, HIGH);
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delay(30);
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digitalWrite(keyReadyPin, HIGH);
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KeyboardBIT7_Enable();
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}
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