create "buzzer" WLED usermod

usermods/buzzer/usermod_v2_buzzer.h

@@ -0,0 +1,81 @@
+#pragma once
+
+#include "wled.h"
+#include "Arduino.h"
+
+#include <deque>
+
+#define USERMOD_ID_BUZZER 900
+#ifndef USERMOD_BUZZER_PIN
+#define USERMOD_BUZZER_PIN GPIO_NUM_32
+#endif
+
+/*
+ * Usermods allow you to add own functionality to WLED more easily
+ * See: https://github.com/Aircoookie/WLED/wiki/Add-own-functionality
+ * 
+ * Using a usermod:
+ * 1. Copy the usermod into the sketch folder (same folder as wled00.ino)
+ * 2. Register the usermod by adding #include "usermod_filename.h" in the top and registerUsermod(new MyUsermodClass()) in the bottom of usermods_list.cpp
+ */
+
+class BuzzerUsermod : public Usermod {
+  private:
+    unsigned long lastTime_ = 0;
+    unsigned long delay_ = 0;
+    std::deque<std::pair<uint8_t, unsigned long>> sequence_ {};
+  public:
+    /*
+     * setup() is called once at boot. WiFi is not yet connected at this point.
+     * You can use it to initialize variables, sensors or similar.
+     */
+    void setup() {
+      // Setup the pin, and default to LOW
+      pinMode(USERMOD_BUZZER_PIN, OUTPUT);
+      digitalWrite(USERMOD_BUZZER_PIN, LOW);
+
+      // Beep on startup
+      sequence_.push_back({ HIGH, 50 });
+      sequence_.push_back({ LOW, 0 });
+    }
+
+
+    /*
+     * connected() is called every time the WiFi is (re)connected
+     * Use it to initialize network interfaces
+     */
+    void connected() {
+      // Double beep on WiFi
+      sequence_.push_back({ LOW, 100 });
+      sequence_.push_back({ HIGH, 50 });
+      sequence_.push_back({ LOW, 30 });
+      sequence_.push_back({ HIGH, 50 });
+      sequence_.push_back({ LOW, 0 });
+    }
+
+    /*
+     * loop() is called continuously. Here you can check for events, read sensors, etc.
+     */
+    void loop() {
+      if (sequence_.size() < 1) return; // Wait until there is a sequence
+      if (millis() - lastTime_ <= delay_) return; // Wait until delay has elapsed
+
+      auto event = sequence_.front();
+      sequence_.pop_front();
+
+      digitalWrite(USERMOD_BUZZER_PIN, event.first);
+      delay_ = event.second;
+
+      lastTime_ = millis();
+    }
+
+
+    /*
+     * getId() allows you to optionally give your V2 usermod an unique ID (please define it in const.h!).
+     * This could be used in the future for the system to determine whether your usermod is installed.
+     */
+    uint16_t getId()
+    {
+      return USERMOD_ID_BUZZER;
+    }
+};

wled00/usermods_list.cpp

@@ -14,6 +14,9 @@
 #include "../usermods/Temperature/usermod_temperature.h"
 #endif
 //#include "usermod_v2_empty.h"
+#ifdef USERMOD_BUZZER
+#include "../usermods/buzzer/usermod_v2_buzzer.h"
+#endif
 
 void registerUsermods()
 {
@@ -27,4 +30,7 @@ void registerUsermods()
   usermods.add(new UsermodTemperature());
   #endif
   //usermods.add(new UsermodRenameMe());
+  #ifdef USERMOD_BUZZER
+  usermods.add(new BuzzerUsermod());
+  #endif
 }