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79 lines
1.8 KiB
79 lines
1.8 KiB
1 year ago
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#include <TM1638plus_Model2.h>
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#include <elapsedMillis.h>
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#include <limits.h>
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#define STROBE_TM 9
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#define CLOCK_TM 8
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#define DIO_TM 7
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#define MIDI_CH_BIT3 5
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#define MIDI_CH_BIT2 4
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#define MIDI_CH_BIT1 3
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#define MIDI_CH_BIT0 2
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bool swap_nibbles = false;
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bool high_freq = false;
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#define BRIGHTNESS 6
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#define BUTTON_DEBOUNCE_TIME_MS 50
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// Constructor object
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TM1638plus_Model2 tm(STROBE_TM, CLOCK_TM, DIO_TM, swap_nibbles, high_freq);
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elapsedMillis button_debounce_timer;
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void setup() {
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Serial.begin(9600);
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delay(100);
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Serial.println("<SETUP>");
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tm.displayBegin();
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tm.brightness(BRIGHTNESS);
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tm.DisplayStr("MIDIHOST", 0);
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pinMode(MIDI_CH_BIT3, OUTPUT);
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pinMode(MIDI_CH_BIT2, OUTPUT);
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pinMode(MIDI_CH_BIT1, OUTPUT);
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pinMode(MIDI_CH_BIT0, OUTPUT);
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digitalWrite(MIDI_CH_BIT3, LOW);
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digitalWrite(MIDI_CH_BIT2, LOW);
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digitalWrite(MIDI_CH_BIT1, LOW);
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digitalWrite(MIDI_CH_BIT0, LOW);
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delay(500);
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Serial.println("</SETUP>");
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}
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void loop() {
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uint8_t button;
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button = tm.ReadKey16();
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if (button > 0 && button_debounce_timer > BUTTON_DEBOUNCE_TIME_MS) {
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Serial.print("Button: ");
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Serial.println(button, DEC);
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button_debounce_timer = 0;
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tm.DisplayDecNum(button, 0, false, TMAlignTextRight);
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SetMidiChannel(button);
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}
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}
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void SetMidiChannel(uint8_t channel) {
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Serial.print("Setting MIDI channel: ");
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Serial.print(channel, DEC);
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Serial.print(" (");
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printBinary(channel, 4);
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Serial.println(")");
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digitalWrite(MIDI_CH_BIT0, channel & 0x00);
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digitalWrite(MIDI_CH_BIT1, channel & 0x01);
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digitalWrite(MIDI_CH_BIT2, channel & 0x02);
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digitalWrite(MIDI_CH_BIT3, channel & 0x08);
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}
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void printBinary(uint32_t value, uint8_t len) {
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for (len; len >= 0; len--) {
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Serial.print((char)('0' + ((value >> len) & 1)));
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}
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Serial.println();
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}
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