Status LED's: Implemented

They can be activated using device profiles.

docs/DeviceProfiles.md

@@ -102,4 +102,6 @@ The json file can contain multiple profiles. Each profile requires a name and di
 | display.data  | number    | Data Pin (e.g. SDA for i2c displays) required for all displays. Use 255 for not assigned pins. |
 | display.clk   | number    | Clock Pin (e.g. SCL for i2c displays) required for SSD1306 and SH1106. Use 255 for not assigned pins. |
 | display.cs    | number    | Chip Select Pin required for PCD8544. Use 255 for not assigned pins. |
-| display.reset | number    | Reset Pin required for PCD8544, optional for all other displays. Use 255 for not assigned pins. |
+| display.reset | number    | Reset Pin required for PCD8544, optional for all other displays. Use 255 for not assigned pins. |
+| led.led0      | number    | LED pin for network indication. Blinking = WLAN connected but NTP & MQTT (if enabled) disconnected. On = WLAN, NTP, MQTT connected. Off = Network not connected |
+| led.led1      | number    | LED pin for inverter indication. On = All inverters reachable & producing. Blinking = All inverters reachable but not producing. Off = At least one inverter is not reachable. Only inverters with polling enabled are considered. |

include/Led_Single.h

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#include "PinMapping.h"
+#include <TimeoutHelper.h>
+
+#define LEDSINGLE_UPDATE_INTERVAL 2000
+
+enum eLedFunction {
+    CONNECTED_NETWORK,
+    CONNECTED_MQTT,
+    INV_REACHABLE,
+    INV_PRODUCING,
+};
+
+class LedSingleClass {
+public:
+    LedSingleClass();
+    void init();
+    void loop();
+
+private:
+    enum class LedState_t {
+        On,
+        Off,
+        Blink,
+    };
+
+    LedState_t _ledState[PINMAPPING_LED_COUNT];
+    TimeoutHelper _updateTimeout;
+    TimeoutHelper _blinkTimeout;
+    uint8_t _ledActive = 0;
+};
+
+extern LedSingleClass LedSingle;

include/PinMapping.h

@@ -6,6 +6,7 @@
 #include <stdint.h>
 
 #define PINMAPPING_FILENAME "/pin_mapping.json"
+#define PINMAPPING_LED_COUNT 2
 
 #define MAPPING_NAME_STRLEN 31
 
@@ -29,6 +30,7 @@ struct PinMapping_t {
     uint8_t display_clk;
     uint8_t display_cs;
     uint8_t display_reset;
+    int8_t led[PINMAPPING_LED_COUNT];
 };
 
 class PinMappingClass {

src/Led_Single.cpp

@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 Thomas Basler and others
+ */
+#include "Led_Single.h"
+#include "Configuration.h"
+#include "MqttSettings.h"
+#include "NetworkSettings.h"
+#include "PinMapping.h"
+#include <Hoymiles.h>
+
+LedSingleClass LedSingle;
+
+LedSingleClass::LedSingleClass()
+{
+}
+
+void LedSingleClass::init()
+{
+    _blinkTimeout.set(500);
+    _updateTimeout.set(LEDSINGLE_UPDATE_INTERVAL);
+
+    for (uint8_t i = 0; i < PINMAPPING_LED_COUNT; i++) {
+        auto& pin = PinMapping.get();
+
+        if (pin.led[i] >= 0) {
+            pinMode(pin.led[i], OUTPUT);
+            digitalWrite(pin.led[i], LOW);
+            _ledActive++;
+        }
+
+        _ledState[i] = LedState_t::Off;
+    }
+}
+
+void LedSingleClass::loop()
+{
+    if (_ledActive == 0) {
+        return;
+    }
+
+    if (_updateTimeout.occured()) {
+        const CONFIG_T& config = Configuration.get();
+
+        // Update network status
+        _ledState[0] = LedState_t::Off;
+
+        if (NetworkSettings.isConnected()) {
+            _ledState[0] = LedState_t::Blink;
+        }
+
+        struct tm timeinfo;
+        if (getLocalTime(&timeinfo, 5) && (!config.Mqtt_Enabled || (config.Mqtt_Enabled && MqttSettings.getConnected()))) {
+            _ledState[0] = LedState_t::On;
+        }
+
+        // Update inverter status
+        _ledState[1] = LedState_t::Off;
+        if (Hoymiles.getNumInverters()) {
+            bool allReachable = true;
+            bool allProducing = true;
+            for (uint8_t i = 0; i < Hoymiles.getNumInverters(); i++) {
+                auto inv = Hoymiles.getInverterByPos(i);
+                if (inv == nullptr) {
+                    continue;
+                }
+                if (inv->getEnablePolling()) {
+                    if (!inv->isReachable()) {
+                        allReachable = false;
+                    }
+                    if (!inv->isProducing()) {
+                        allProducing = false;
+                    }
+                }
+            }
+            // set LED status
+            if (allReachable && allProducing) {
+                _ledState[1] = LedState_t::On;
+            }
+            if (allReachable && !allProducing) {
+                _ledState[1] = LedState_t::Blink;
+            }
+        }
+
+        _updateTimeout.reset();
+    }
+
+    for (uint8_t i = 0; i < PINMAPPING_LED_COUNT; i++) {
+        auto& pin = PinMapping.get();
+
+        if (pin.led[i] < 0) {
+            continue;
+        }
+
+        switch (_ledState[i]) {
+        case LedState_t::Off:
+            digitalWrite(pin.led[i], LOW);
+            break;
+        case LedState_t::On:
+            digitalWrite(pin.led[i], HIGH);
+            break;
+        case LedState_t::Blink:
+            if (_blinkTimeout.occured()) {
+                digitalWrite(pin.led[i], !digitalRead(pin.led[i]));
+                _blinkTimeout.reset();
+            }
+            break;
+        }
+    }
+}

src/PinMapping.cpp

@@ -30,6 +30,14 @@
 #define DISPLAY_RESET 255
 #endif
 
+#ifndef LED0
+#define LED0 -1
+#endif
+
+#ifndef LED1
+#define LED1 -1
+#endif
+
 PinMappingClass PinMapping;
 
 PinMappingClass::PinMappingClass()
@@ -61,6 +69,8 @@ PinMappingClass::PinMappingClass()
     _pinMapping.display_cs = DISPLAY_CS;
     _pinMapping.display_reset = DISPLAY_RESET;
 
+    _pinMapping.led[0] = LED0;
+    _pinMapping.led[1] = LED1;
 }
 
 PinMapping_t& PinMappingClass::get()
@@ -113,6 +123,9 @@ bool PinMappingClass::init(const String& deviceMapping)
             _pinMapping.display_cs = doc[i]["display"]["cs"] | DISPLAY_CS;
             _pinMapping.display_reset = doc[i]["display"]["reset"] | DISPLAY_RESET;
 
+            _pinMapping.led[0] = doc[i]["led"]["led0"] | LED0;
+            _pinMapping.led[1] = doc[i]["led"]["led1"] | LED1;
+
             return true;
         }
     }

src/WebApi_device.cpp

@@ -63,6 +63,10 @@ void WebApiDeviceClass::onDeviceAdminGet(AsyncWebServerRequest* request)
     displayPinObj["cs"] = pin.display_cs;
     displayPinObj["reset"] = pin.display_reset;
 
+    JsonObject ledPinObj = curPin.createNestedObject("led");
+    ledPinObj["led0"] = pin.led[0];
+    ledPinObj["led1"] = pin.led[1];
+
     JsonObject display = root.createNestedObject("display");
     display["rotation"] = config.Display_Rotation;
     display["power_safe"] = config.Display_PowerSafe;

src/main.cpp

@@ -5,6 +5,7 @@
 #include "Configuration.h"
 #include "Display_Graphic.h"
 #include "InverterSettings.h"
+#include "Led_Single.h"
 #include "MessageOutput.h"
 #include "MqttHandleDtu.h"
 #include "MqttHandleHass.h"
@@ -114,6 +115,11 @@ void setup()
     Display.setStartupDisplay();
     MessageOutput.println("done");
 
+    // Initialize Single LEDs
+    MessageOutput.print("Initialize LEDs... ");
+    LedSingle.init();
+    MessageOutput.println("done");
+
     // Check for default DTU serial
     MessageOutput.print("Check for default DTU serial... ");
     if (config.Dtu_Serial == DTU_SERIAL) {
@@ -150,4 +156,6 @@ void loop()
     yield();
     MessageOutput.loop();
     yield();
+    LedSingle.loop();
+    yield();
 }