Use NeoPixel led for wifi status

include/display.hpp

@@ -17,7 +17,8 @@ class Display {
     void setPrecipitationForecastLeds(uint32_t p_current_time, ArduinoJson::V710PB22::JsonArray p_precipitation);
     void setUVIForecastLed(uint32_t p_current_time, ArduinoJson::V710PB22::JsonArray p_uvi);
     void setLocalAirQualityLed();
-    void setWifiStatusLed(bool p_enable);
+    void setWifiStatusLed(bool p_is_connected);
+    void setErrorLed(bool p_is_error);
     void setPixelColor(uint32_t p_index, uint8_t p_red, uint8_t p_green, uint8_t p_blue, uint8_t p_white);
     void clear();
     void show();

include/wifi_handler.hpp

@@ -3,12 +3,10 @@
 
 #include <WiFiManager-esp32.h>  // https://github.com/admarschoonen/WiFiManager
 
-#include "display.hpp"
-
 class WifiHandler {
    public:
     // Constructor
-    WifiHandler(uint8_t p_led_pin, Display p_display);
+    WifiHandler(std::function<void(WiFiManager::Status p_wifi_status)> p_tickerCb);
 
    public:
     // Public static methods
@@ -30,7 +28,6 @@ class WifiHandler {
    private:
     // Private objects
     WiFiManager m_wifiManager;
-    Display& m_display;
 };
 
 #endif  // __WIFIHANDLER_HPP__

src/display.cpp

@@ -74,7 +74,21 @@ void Display::setUVIForecastLed(uint32_t p_current_time, ArduinoJson::V710PB22::
 
 void Display::setLocalAirQualityLed() {}
 
-void Display::setWifiStatusLed(bool p_enable) {}
+void Display::setWifiStatusLed(bool p_is_connected) {
+    if (p_is_connected) {
+        m_leds.setPixelColor(m_wifi_status_map, m_leds.Color(0U, 0U, 255U, 255U));
+    } else {
+        m_leds.setPixelColor(m_wifi_status_map, m_leds.Color(0U, 0U, 0U, 0U));
+    }
+}
+
+void Display::setErrorLed(bool p_is_error) {
+    if (p_is_error) {
+        m_leds.setPixelColor(m_wifi_status_map, m_leds.Color(255U, 0U, 0U, 0U));
+    } else {
+        m_leds.setPixelColor(m_wifi_status_map, m_leds.Color(0U, 0U, 0U, 0U));
+    }
+}
 
 void Display::setPixelColor(uint32_t p_index, uint8_t p_red, uint8_t p_green, uint8_t p_blue, uint8_t p_white) {
     m_leds.setPixelColor(p_index, m_leds.Color(p_red, p_green, p_blue, p_white));

src/main.cpp

@@ -15,15 +15,34 @@
 
 #define CONNECT_BUTTON BUTTON_BUILTIN
 
+// Forward function declarations
+void wifiHandlerFeedbackCb(WiFiManager::Status p_wifi_status);
+
+// Global objects
 DESPatch dESPatch;
 
 Adafruit_NeoPixel leds = Adafruit_NeoPixel(29, 14, NEO_GRBW + NEO_KHZ800);
 Display display(leds);
 
-WifiHandler wifi_handler(LED_BUILTIN, display);
+WifiHandler wifi_handler(wifiHandlerFeedbackCb);
 
 BackendCommunication backend_communication(wifi_handler);
 
+void wifiHandlerFeedbackCb(WiFiManager::Status p_wifi_status) {
+    static bool state = false;
+
+    if (p_wifi_status.mode == WiFiManager::Mode::CONNECTED) {
+        state = true;
+    } else if (p_wifi_status.mode == WiFiManager::Mode::DISCONNECTED) {
+        state = false;
+    } else {
+        state = !state;
+    }
+
+    display.setWifiStatusLed(state);
+    display.show();
+}
+
 void setup() {
     display.clear();
     display.show();
@@ -64,7 +83,8 @@ void loop(void) {
     backend_communication.getConfig();
 
     if (not backend_communication.m_is_config_valid) {
-        Serial.println(String("Uptime: " + String(millis())) + " Invalid config");
+        display.setErrorLed(true);
+        Serial.println(String("Uptime: " + String(millis())) + ". Error: invalid config");
     } else {
         backend_communication.getWeatherData();
 
@@ -79,9 +99,10 @@ void loop(void) {
 
         display.setUVIForecastLed(utc_time, backend_communication.m_weather_data["UVI"].as<JsonArray>());
 
-        display.show();
+        display.setWifiStatusLed(false);
     }
 
+    display.show();
     dESPatch.checkForUpdate(true);
 
     uint32_t time_end = millis();

src/wifi_handler.cpp

@@ -2,20 +2,18 @@
 
 #include "../include/wifi_handler.hpp"
 
-static uint8_t g_led_pin;
 static Ticker g_ticker;
+static WiFiManager::Status g_wifi_status;
+static std::function<void(WiFiManager::Status p_wifi_status)> g_tickerCb = nullptr;
 
-WifiHandler::WifiHandler(uint8_t p_led_pin, Display p_display) : m_display(p_display) {
-    g_led_pin = p_led_pin;
+WifiHandler::WifiHandler(std::function<void(WiFiManager::Status p_wifi_status)> p_tickerCb) {
+    g_tickerCb = p_tickerCb;
     return;
 }
 
 static void tick() {
-    int state = 0;
-
-    if (g_led_pin >= 0) {
-        state = digitalRead(g_led_pin);
-        digitalWrite(g_led_pin, !state);
+    if (g_tickerCb != nullptr) {
+        g_tickerCb(g_wifi_status);
     }
 }
 
@@ -30,6 +28,8 @@ void WifiHandler::setBlinkRate(float p_interval) {
 }
 
 void WifiHandler::wifiManagerCb(WiFiManager::Status p_status) {
+    g_wifi_status = p_status;
+
     if (p_status.mode == WiFiManager::Mode::CONNECTING) {
         WifiHandler::setBlinkRate(WifiHandler::BLINK_RATE_CONNECTING);
     } else if (p_status.mode == WiFiManager::Mode::SCANNING) {
@@ -40,10 +40,10 @@ void WifiHandler::wifiManagerCb(WiFiManager::Status p_status) {
         WifiHandler::setBlinkRate(WifiHandler::BLINK_RATE_ERASE);
     } else if (p_status.mode == WiFiManager::Mode::CONNECTED) {
         WifiHandler::setBlinkRate(0.0f);
-        digitalWrite(g_led_pin, HIGH);
+        g_tickerCb(g_wifi_status);
     } else if (p_status.mode == WiFiManager::Mode::DISCONNECTED) {
         WifiHandler::setBlinkRate(0.0f);
-        digitalWrite(g_led_pin, LOW);
+        g_tickerCb(g_wifi_status);
     }
 }
 
@@ -65,9 +65,6 @@ void WifiHandler::connect() {
     // if you get here you have connected to the WiFi
     Serial.print(String(millis()) + " Connected with address: ");
     Serial.println(WiFi.localIP());
-
-    // keep LED on
-    digitalWrite(g_led_pin, HIGH);
 }
 
 void WifiHandler::resetSettings() {
@@ -80,8 +77,6 @@ void WifiHandler::resetSettings() {
     delay(1000);
     status.mode = WiFiManager::Mode::DISCONNECTED;
     wifiManagerCb(status);
-
-    return;
 }
 
 String WifiHandler::getMac(bool p_insertColons) {