roughly implemented a dmx endpoint for debug

src/main.cpp

@@ -17,6 +17,7 @@
 #include <LittleFS.h>
 #include "routes/config.h"
 #include "routes/networks.h"
+#include "routes/channels.h"
 
 DMXESPSerial dmx1;
 DMXESPSerial dmx2;
@@ -309,6 +310,9 @@ void setup()
     server.on("/networks", HTTP_GET, [](AsyncWebServerRequest *request)
               { onGetNetworks(request); });
 
+    server.on("/dmx", HTTP_GET, [](AsyncWebServerRequest *request)
+              { onGetChannels(request, dmx1, dmx2); });
+
     server.onRequestBody([](AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total)
                          {
                             if (request->url() == "/config" && request->method() == HTTP_PUT) {

src/routes/channels.cpp

@@ -0,0 +1,21 @@
+#include "channels.h"
+
+void onGetChannels(AsyncWebServerRequest *request, DMXESPSerial dmx1, DMXESPSerial dmx2)
+{
+    JsonDocument doc;
+
+    for (int channel = 1; channel <= DMXCHANNELS; channel++)
+    {
+        doc["dmx1"][channel] = dmx1.read(channel);
+    }
+
+    for (int channel = 1; channel <= DMXCHANNELS; channel++)
+    {
+        doc["dmx2"][channel] = dmx2.read(channel);
+    }
+
+    String jsonBuffer;
+    serializeJson(doc, jsonBuffer);
+
+    request->send(200, "application/json", jsonBuffer);
+}

src/routes/channels.h

@@ -0,0 +1,8 @@
+#include <Preferences.h>
+#include <ArduinoJson.h>
+#include <AsyncWebServer_ESP32_W5500.h>
+#include "ESPDMX.h"
+
+extern Preferences config;
+
+void onGetChannels(AsyncWebServerRequest *request, DMXESPSerial dmx1, DMXESPSerial dmx2);