166 lines
3.6 KiB
C++
166 lines
3.6 KiB
C++
// Copyright 2020 Neale Pickett
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// Distributed under the MIT license
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// Please see https://github.com/nealey/vail-adapter/
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#include <Arduino.h>
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#include <Adafruit_NeoPixel.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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#include <Fonts/FreeSans9pt7b.h>
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#include "bounce2.h"
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#include "keyers.h"
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#include "polybuzzer.h"
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#define DIT_PIN 1
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#define DAH_PIN 3
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#define S1_PIN 4
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#define S2_PIN 9
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#define SPEAKER 7
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#define SOUNDER 8
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#define MILLISECOND 1
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#define SECOND (1 * MILLISECOND)
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uint16_t iambicDelay = 80 * MILLISECOND;
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Bounce dit = Bounce();
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Bounce dah = Bounce();
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Bounce s1 = Bounce();
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Bounce s2 = Bounce();
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PolyBuzzer buzzer = PolyBuzzer(SPEAKER);
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Adafruit_NeoPixel pixels(1, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
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Adafruit_SSD1306 display(128, 32, &Wire, -1);
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// Tones default to a minor third
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unsigned int txNote = 72; // C5
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unsigned int rxNote = 69; // A4
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int keyerCurrentN = 0;
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Keyer *keyerCurrent = NULL;
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void led(uint32_t color = 0) {
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pixels.fill(color);
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pixels.show();
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}
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// A reentrant doodad to blink out the letter V at startup
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#define HELLO_BITS 0b0000101010111000
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void hello(unsigned long now) {
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static bool beeping = false;
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int beat = now / iambicDelay;
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if (beat < 16) {
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bool on = HELLO_BITS & (1 << (15-beat));
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if (on != beeping) {
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if (on) {
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buzzer.Note(0, rxNote);
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led(0x220000);
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} else {
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buzzer.NoTone(0);
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led(0);
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}
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beeping = on;
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}
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}
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}
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int loadKeyer(int n) {
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keyerCurrent = GetKeyerByNumber(n);
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if (NULL == keyerCurrent) {
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n = 0;
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keyerCurrent = GetKeyerByNumber(n);
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}
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display.clearDisplay();
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display.setCursor(1, 12);
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display.println(keyerCurrent->Name());
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display.display();
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return n;
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}
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void
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void setup() {
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dit.attach(DIT_PIN, INPUT_PULLUP);
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dah.attach(DAH_PIN, INPUT_PULLUP);
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s1.attach(S1_PIN, INPUT_PULLUP);
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s2.attach(S2_PIN, INPUT_PULLUP);
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pinMode(SOUNDER, OUTPUT);
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Serial.begin(115200);
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Serial.println("Vail Client / " __DATE__ " " __TIME__);
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pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
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pixels.setBrightness(20); // not so bright
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Wire.begin();
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display.begin(SSD1306_SWITCHCAPVCC); // This never returns false, in my testing
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display.setFont(&FreeSans9pt7b);
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display.setTextColor(SSD1306_WHITE);
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display.clearDisplay();
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display.setCursor(1, 12);
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display.println(__DATE__);
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display.display();
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// To auto-sense a straight key in a TRRS jack,
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// check to see if DAH is closed.
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// The sleeve on the straight key's TRS plug
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// will short the second ring to the sleeve.
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// In this case, set the keyer to straight.
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// Since keyers are edge triggered,
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// nothing will happen if the key stays closed.
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// If it opens, it falls back to being a straight key.
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for (int i = 0; i < 16; i++) {
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hello(millis());
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delay(20);
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dah.update();
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}
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if (dah.read() == LOW) {
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loadKeyer(0); // Straight
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} else {
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loadKeyer(7); // Iambic B
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}
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}
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void loop() {
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static unsigned long txBegin = 0;
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unsigned long now = millis();
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hello(now);
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s1.update();
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s2.update();
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if (s1.fell() || s2.fell()) {
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keyerCurrentN = loadKeyer(keyerCurrentN + 1);
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// XXX: menu
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}
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if (dit.update()) {
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keyerCurrent->Key(PADDLE_DIT, !dit.read());
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}
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if (dah.update()) {
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keyerCurrent->Key(PADDLE_DAH, !dah.read());
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}
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bool sounding = keyerCurrent->Tick(now);
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if (sounding) {
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if (!txBegin) {
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txBegin = now;
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buzzer.Note(0, txNote);
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digitalWrite(SOUNDER, HIGH);
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led(0xff0000);
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}
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} else {
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if (txBegin) {
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Serial.printf("%d %d\n", txBegin, now - txBegin);
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txBegin = 0;
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buzzer.NoTone(0);
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digitalWrite(SOUNDER, LOW);
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led();
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}
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}
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}
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