Week 8: Electronics design

#include <Adafruit_NeoPixel.h>
#include "Adafruit_TinyUSB.h"

// --- CONFIGURACIÓN PINES ---
const int pinRevPag = D0;
const int pinChrome = D1;
const int pinAt1    = D2; // Shift
const int pinAt2    = D3; // Tab
const int pinAt3    = D4; // Windows
const int pinRGB    = D5; // Pin para tus WS2812B
const int pinRetro  = D6; // Motor

// --- CONFIGURACIÓN NEOPIXEL ---
#define NUM_LEDS 10 
Adafruit_NeoPixel pixels(NUM_LEDS, pinRGB, NEO_GRB + NEO_KHZ800);
long pixelHue = 0;

// --- CONFIGURACIÓN USB HID ---
uint8_t const desc_hid_report[] = { TUD_HID_REPORT_DESC_KEYBOARD() };
Adafruit_USBD_HID usb_hid(desc_hid_report, sizeof(desc_hid_report), HID_ITF_PROTOCOL_KEYBOARD, 2, false);

void setup() {
  usb_hid.begin();
  pixels.begin();
  pixels.setBrightness(50); 

  pinMode(pinRevPag, INPUT_PULLUP);
  pinMode(pinChrome, INPUT_PULLUP);
  pinMode(pinAt1,    INPUT_PULLUP);
  pinMode(pinAt2,    INPUT_PULLUP);
  pinMode(pinAt3,    INPUT_PULLUP);
  pinMode(pinRetro,  OUTPUT);

  Serial.begin(115200);
}

void loop() {
  efectoGamer();

  if ( !TinyUSBDevice.mounted() ) return;

  // --- REVPAG ---
  if (digitalRead(pinRevPag) == LOW) {
    digitalWrite(pinRetro, HIGH);
    uint8_t keycode[6] = { HID_KEY_PAGE_UP }; 
    usb_hid.keyboardReport(0, 0, keycode);
    while(digitalRead(pinRevPag) == LOW) efectoGamer(); 
    usb_hid.keyboardRelease(0);
    digitalWrite(pinRetro, LOW);
  }

  // --- CHROME (Secuencia) ---
  if (digitalRead(pinChrome) == LOW) {
    digitalWrite(pinRetro, HIGH);
    // Alt + F4
    uint8_t f4[6] = { HID_KEY_F4 };
    usb_hid.keyboardReport(0, KEYBOARD_MODIFIER_LEFTALT, f4);
    delay(100); usb_hid.keyboardRelease(0);
    delay(500);
    // Win + R
    uint8_t r_key[6] = { HID_KEY_R };
    usb_hid.keyboardReport(0, KEYBOARD_MODIFIER_LEFTGUI, r_key);
    delay(100); usb_hid.keyboardRelease(0);
    delay(400);
    // Escribir "chrome"
    const char* cmd = "chrome";
    for(int i=0; cmd[i]; i++) {
      uint8_t k[6] = { (uint8_t)(HID_KEY_A + (cmd[i] - 'a')) };
      usb_hid.keyboardReport(0, 0, k);
      delay(30); usb_hid.keyboardRelease(0); delay(30);
      efectoGamer();
    }
    // Enter
    uint8_t enter[6] = { HID_KEY_ENTER };
    usb_hid.keyboardReport(0, 0, enter);
    delay(100); usb_hid.keyboardRelease(0);
    while(digitalRead(pinChrome) == LOW) efectoGamer();
    digitalWrite(pinRetro, LOW); 
  }

  // --- Shift ---
  if (digitalRead(pinAt1) == LOW) {
    digitalWrite(pinRetro, HIGH);
    uint8_t keycode[6] = { 0 }; 
    usb_hid.keyboardReport(0, KEYBOARD_MODIFIER_LEFTSHIFT, keycode);
    while(digitalRead(pinAt1) == LOW) efectoGamer(); 
    usb_hid.keyboardRelease(0);
    digitalWrite(pinRetro, LOW);
  }

  // --- Tab ---
  if (digitalRead(pinAt2) == LOW) {
    digitalWrite(pinRetro, HIGH);
    uint8_t keycode[6] = { HID_KEY_TAB };
    usb_hid.keyboardReport(0, 0, keycode);
    while(digitalRead(pinAt2) == LOW) efectoGamer(); 
    usb_hid.keyboardRelease(0);
    digitalWrite(pinRetro, LOW);
  }

  // --- Windows ---
  if (digitalRead(pinAt3) == LOW) {
    digitalWrite(pinRetro, HIGH);
    uint8_t keycode[6] = { 0 }; 
    usb_hid.keyboardReport(0, KEYBOARD_MODIFIER_LEFTGUI, keycode);
    while(digitalRead(pinAt3) == LOW) efectoGamer(); 
    usb_hid.keyboardRelease(0);
    digitalWrite(pinRetro, LOW);
  }
}

void efectoGamer() {
  for (int i = 0; i < pixels.numPixels(); i++) {
    int hueOffset = i * (65536 / pixels.numPixels());
    pixels.setPixelColor(i, pixels.gamma32(pixels.ColorHSV(pixelHue + hueOffset)));
  }
  pixels.show();
  pixelHue += 256; 
  if (pixelHue >= 5 * 65536) pixelHue = 0;
  delay(5); 
}