Delete examples/AVRUartSlaveMidiClock directory

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examples/AVRUartSlaveMidiClock/AVRUartSlaveMidiClock.ino

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-/* USB MIDI Sync Slave Box Monitor
- *  
- * This example demonstrates how to create a
- * MIDI slave clock box with 
- * monitor support using oled display
- * 
- * MIDI in must be provided via an opto-isolator to pin RX/D0 
- * on an Arduino Uno.
- *
- * You need the following libraries to make it work
- * - Midi Library
- * - u8g2
- * - uClock
- * This example code is in the public domain.
- *
- * Code by midilab contact@midilab.co
- * Example modified by Jackson Devices contact@jacksondevices.com
- */
-#include <MIDI.h>
-#include <U8x8lib.h>
-
-//
-// BPM Clock support
-//
-#include <uClock.h>
-
-MIDI_CREATE_DEFAULT_INSTANCE();
-U8X8 * u8x8;
-
-// MIDI clock, start, stop, note on and note off byte definitions - based on MIDI 1.0 Standards.
-#define MIDI_CLOCK 0xF8
-#define MIDI_START 0xFA
-#define MIDI_STOP  0xFC
-
-float bpm = 126.0;
-uint8_t bpm_blink_timer = 1;
-uint8_t clock_state = 1;
-uint8_t clock_mode = 0;
-
-void handle_bpm_led(uint32_t tick) {
-  // BPM led indicator
-  if (!(tick % (96)) || (tick == 1)) {  // first compass step will flash longer
-    bpm_blink_timer = 8;
-    digitalWrite(LED_BUILTIN, HIGH);
-  } else if (!(tick % (24))) {  // each quarter led on
-    digitalWrite(LED_BUILTIN, HIGH);
-  } else if (!(tick % bpm_blink_timer)) {  // get led off
-    digitalWrite(LED_BUILTIN, LOW);
-    bpm_blink_timer = 1;
-  }
-}
-
-// Internal clock handlers
-void ClockOut96PPQN(uint32_t tick) {
-  // Send MIDI_CLOCK to external gears
-  MIDI.sendRealTime(MIDI_CLOCK);
-  handle_bpm_led(tick);
-}
-
-void onClockStart() {
-  MIDI.sendRealTime(MIDI_START);
-}
-
-void onClockStop() {
-  MIDI.sendRealTime(MIDI_STOP);
-  digitalWrite(LED_BUILTIN, LOW);
-}
-
-// External clock handlers
-void onExternalClock() {
-  uClock.clockMe();
-}
-
-void onExternalStart() {
-  uClock.start();
-}
-
-void onExternalStop() {
-  uClock.stop();
-  digitalWrite(LED_BUILTIN, LOW);
-}
-
-void setup() {
-  //
-  // MIDI setup
-  //
-  // Initiate MIDI communications, listen to all channels, disable soft MIDI thru
-  MIDI.begin();
-  MIDI.turnThruOff();
-MIDI.setHandleClock(onExternalClock);
-  MIDI.setHandleStart(onExternalStart);
-  MIDI.setHandleStop(onExternalStop);
-
-  // An led to display MIDI reception
-  pinMode(LED_BUILTIN, OUTPUT);
-  digitalWrite(LED_BUILTIN, LOW);
-
-  //
-  // OLED setup
-  // Please check you oled model to correctly init him
-// The complete list is available here: https://github.com/olikraus/u8g2/wiki/u8g2setupcpp
-  //
-  //u8x8 = new U8X8_SH1106_128X64_NONAME_HW_I2C(U8X8_PIN_NONE);
-  u8x8 = new U8X8_SSD1306_128X64_NONAME_HW_I2C(U8X8_PIN_NONE);
-  u8x8->begin();
-  u8x8->setFont(u8x8_font_pressstart2p_r); 
-  u8x8->clear();
-  u8x8->setFlipMode(true);
-  u8x8->drawUTF8(0, 0, "uClock"); 
-
-  //
-  // uClock Setup
-  //
-  uClock.init();
-  uClock.setClock96PPQNOutput(ClockOut96PPQN);
-  // For MIDI Sync Start and Stop
-  uClock.setOnClockStartOutput(onClockStart);
-  uClock.setOnClockStopOutput(onClockStop);
-  uClock.setMode(uClock.EXTERNAL_CLOCK);
-  //uClock.setTempo(136.5);
-  //uClock.start();
-}
-
-void loop() {
-  while(MIDI.read()) {}
-  // DO NOT ADD MORE PROCESS HERE AT THE COST OF LOSING CLOCK SYNC
-  // Since arduino make use of Serial RX interruption we need to 
-  // read Serial as fast as we can on the loop
-  if (bpm != uClock.getTempo()) {
-    bpm = uClock.getTempo();
-    u8x8->drawUTF8(8, 7, String(bpm, 1).c_str());
-    u8x8->drawUTF8(8 + 5, 7, "BPM");
-    // clear display ghost number for 2 digit
-    // coming from 3 digit bpm changes
-    if (bpm < 100) {
-      u8x8->drawUTF8(8 + 4, 7, " ");
-    }
-  }
-  if (clock_state != uClock.state) {
-    clock_state = uClock.state;
-    if (clock_state >= 1) {
-      u8x8->drawUTF8(0, 7, "Playing");
-    } else {
-      u8x8->drawUTF8(0, 7, "Stopped ");
-    }
-  }
-  if (clock_mode != uClock.getMode()) {
-    clock_mode = uClock.getMode();
-    if (clock_mode == uClock.EXTERNAL_CLOCK) {
-      u8x8->drawUTF8(10, 0, "Slave ");
-    } else {
-      u8x8->drawUTF8(10, 0, "Master");
-    }
-  }
-}