Add Keyboard support
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stepper.ino
58
stepper.ino
@ -19,14 +19,29 @@
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#include <Stepper.h>
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// Typewriter head
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unsigned char charmap[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 24, 0, 64, 67, 74, 16, 72, 73, 51, 65, 14, 63, 1, 50, 57, 53, 54, 55, 56, 58, 59, 60, 61, 62, 31, 43, 0, 68, 0, 27, 0, 38, 19, 22, 30, 28, 23, 32, 42, 40, 36, 46, 34, 17, 44, 41, 35, 48, 25, 26, 37, 29, 33, 15, 49, 39, 21, 0, 0, 0, 45, 0, 82, 94, 88, 89, 86, 93, 3, 83, 4, 95, 84, 9, 87, 81, 92, 91, 6, 8, 90, 5, 2, 7, 85, 13, 79, 10, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 66, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20, 0, 0, 0, 76, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 75, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 70, 0, 0, 0, 0, 0, 52, 0, 0, 0, 0, 0, 0, 0, 71, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 78, 0, 0, 0, 0, 0, 69, 0, 0};
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// Keyboard
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uint8_t keyMap[9][8] {
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/*0*/ {'5', '\x80'/*backarrw*/, '4', '=', '`', '9', '1', '8'},
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/*1*/ {0, 0, 'y', '[', 'w', 'p', 'e', 'u'},
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/*2*/ {'6', '\x81'/*forwarrw*/, '3', '-', 0, '0', '2', '7'},
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/*3*/ {'a', 0, 'k', '\n', 'f', '\x82'/*caps*/, 'g', 'l'},
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/*4*/ {'\t', '\x83'/*backsps*/, 't', ']', 'q', 'o', 'r', 'i'},
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/*5*/ {'s', 0, 'j', '\'', 'd', 0, 'h', ';'},
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/*6*/ {'c', '\x86'/*r_down_ctrl*/, 'm', 0, 'n', 'x', 0, '/'},
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/*7*/ {'v', 0, ',', '\x84'/*l_shift*/, 'b', 'z', '\\', '.'},
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/*8*/ {' ', '\x85'/*l_up_ctrl*/, 0, 0, 0, 0, 0, 0}
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};
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uint8_t lastKey[9] = { 0 };
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const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution
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// for your motor
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// initialize the stepper library on pins 8 through 11:
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Stepper columnStepper(stepsPerRevolution, 8, 9, 10, 11);
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Stepper charWheelStepper(stepsPerRevolution, 7, 6, 5, 4);
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Stepper charWheelStepper(96, 7, 6, 5, 4);
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int charWidth = 11; // how many steps between char prints
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@ -34,11 +49,11 @@ int currentPos = 0;
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int currentChar = 0;
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int limitPin = 12;
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int headMotorLimitPin = 13;
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int hammerPin = 22;
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int hammerPin = 14;
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int Motor1A = 2;
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int Motor1B = 3;
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int Motor2A = 23;
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int Motor2A = 15;
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void setup() {
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// initialize the serial port:
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@ -57,13 +72,22 @@ void setup() {
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pinMode(hammerPin, OUTPUT);
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digitalWrite(hammerPin, LOW);
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// Keyboard
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for (int i = 22; i < 30; i++) {
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pinMode(i, INPUT);
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digitalWrite(i, HIGH);
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}
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for (int i = 30; i < 40; i++) {
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pinMode(i, INPUT);
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digitalWrite(i, LOW);
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}
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columnStepper.setSpeed(90);
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charWheelStepper.setSpeed(90);
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Serial.println("Finding home");
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//Serial.println("Finding home");
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findHome();
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Serial.println("Home found!");
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//Serial.println("Home found!");
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}
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void loop() {
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@ -91,6 +115,7 @@ void loop() {
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if (millis() - lastCharTime > 1000) {
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releaseSteppers();
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}
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readKey();
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}
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while(1) {
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lineFeed();
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@ -162,7 +187,6 @@ void hammer() {
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digitalWrite(hammerPin, HIGH);
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delay(13);
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digitalWrite(hammerPin, LOW);
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delay(10);
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}
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void freshTape() {
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@ -244,3 +268,23 @@ void releaseSteppers(){
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}
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}
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uint8_t readKey() {
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for (int i = 30; i < 39; i++) {
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byte row = i -30;
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pinMode(i, OUTPUT);
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digitalWrite(i, LOW);
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delay(5);
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uint8_t input = PINA;
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pinMode(i, INPUT);
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digitalWrite(1, LOW);
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for (int col = 0; col < 8; col++) {
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bool set = !((input >> col) & 1);
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bool last = !((lastKey[row] >> col) & 1);
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if (set && !last) {
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Serial.write(keyMap[row][7-col]);
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}
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}
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lastKey[row] = input;
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}
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}
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