Added flashmode command so we can flash the FC by turning off the SBUS signal

src/Web.cpp

@@ -87,6 +87,16 @@ void WEB::begin(void) {
         server.send(200, "text/html", index_html_str);
     });
 
+    // FC Flash mode
+    server.on("/flashmode", HTTP_GET, []() {
+        server.sendHeader("Connection", "close");
+        server.send(200, "text/html", "FC FLASH MODE");
+
+        // Disable SBUS
+        sbus_enable = false;
+        GPOC = (1 << SBUS_PORT); 
+    });
+
     // Reset
     server.on("/reset", HTTP_GET, []() {
         server.sendHeader("Connection", "close");