Modulino three-keys macro keyboard

1/*
2 Arduino Mission Control
3
4 A sketch to send commands via the HID/USB interface to a computer.
5 Specifically this commands are compatible with the following shortcut 
6 on a MacBook Pro
7 1. Ctrl+Arrow Left -> Move left a space
8 2. Ctrl+Arrow Right -> Move right a space
9 3. Cril+Arrow Up -> Activate Mission Control
10
11 Author: Christian Sarnataro
12
13 This code is also available at
14 https://codeberg.org/csarnataro/arduino_mission_control
15*/
16
17#include "Keyboard.h"
18#include <Arduino_Modulino.h>
19
20ModulinoButtons buttons;
21
22// State variables for LEDs
23bool led_a = false;
24bool led_b = false;
25bool led_c = false;
26
27
28void setup() {
29  Serial.begin(115200);
30  while(!Serial && millis() < 2000); // if serial port is not available, just continue
31
32  // Initialize Modulino and buttons
33  Modulino.begin();
34  buttons.begin();
35
36  // Turn on all LEDs initially
37  buttons.setLeds(true, true, true);
38
39  // Wait a bit before starting Keyboard
40  delay(1000);
41
42  // Turn off all LEDs
43  buttons.setLeds(false, false, false);
44
45  Keyboard.begin();
46  Serial.println("Keyboard HID initialized.");
47}
48
49void loop() {
50  // Check for new button events
51  if (buttons.update()) {
52    // Button A
53    if (buttons.isPressed(0)) {
54      led_a = true;
55      buttons.setLeds(led_a, led_b, led_c);
56      Serial.println("Button A pressed! (swipe left)");
57
58      // Send HID message for Button A
59      Keyboard.press(KEY_LEFT_CTRL);
60      Keyboard.press(KEY_LEFT_ARROW);
61      delay(50);
62      led_a = false;
63      buttons.setLeds(led_a, led_b, led_c);
64    } else {
65      Keyboard.releaseAll();
66    } 
67
68    // Button B
69    if (buttons.isPressed(1)) {
70      led_b = true;
71      buttons.setLeds(led_a, led_b, led_c);
72      Serial.println("Button B pressed! (swipe up)");
73
74      // Send HID message for Button B
75      Keyboard.press(KEY_LEFT_CTRL);
76      Keyboard.press(KEY_UP_ARROW);
77      delay(50);
78      led_b = false;
79      buttons.setLeds(led_a, led_b, led_c);
80    } else {
81      Keyboard.releaseAll();
82    } 
83
84    // Button C
85    if (buttons.isPressed(2)) {
86      led_c = true;
87      buttons.setLeds(led_a, led_b, led_c);
88      Serial.println("Button C pressed! (swipe right)");
89
90      // Send HID message for Button C
91      Keyboard.press(KEY_LEFT_CTRL);
92      Keyboard.press(KEY_RIGHT_ARROW);
93      delay(50);
94      led_c = false;
95      buttons.setLeds(led_a, led_b, led_c);
96    } else {
97      Keyboard.releaseAll();
98    } 
99  }
100}