Add device-dashboard

tutorials/device-dashboard/settings-panel/server.c

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: 2026 Cesanta Software Limited
+// SPDX-License-Identifier: GPL-2.0-only or commercial
+
+#include "mongoose.h"
+
+#if MG_ARCH == MG_ARCH_UNIX || MG_ARCH == MG_ARCH_WIN32
+#define HTTP_ADDR "http://0.0.0.0:8000"
+#else
+#define HTTP_ADDR "http://0.0.0.0:80"
+#endif
+
+static int s_threshold = 17;
+static char s_location[20] = "Galway";
+
+static void location_get(union mg_val *val) {
+  val->s = mg_str(s_location);
+}
+static void location_set(const union mg_val *val) {
+  mg_json_unescape(val->s, s_location, sizeof(s_location));
+}
+
+static void threshold_get(union mg_val *val) {
+  val->i = s_threshold;
+}
+static void threshold_set(const union mg_val *val) {
+  s_threshold = val->i;
+}
+
+// Modify this. This represents device's state to the dashboard
+static struct mg_field fields[] = {
+    {"location", MG_VAL_STR, location_get, location_set},
+    {"threshold", MG_VAL_INT, threshold_get, threshold_set},
+    {0, 0, 0, 0},
+};
+
+void run_mongoose(void) {
+  struct mg_mgr mgr;
+  struct mg_dash dash = {fields};
+  mg_mgr_init(&mgr);
+  mg_http_listen(&mgr, HTTP_ADDR, mg_dash_ev_handler, &dash);
+  for (;;) {
+    mg_mgr_poll(&mgr, 10);
+  }
+}
+
+int main(void) {
+  run_mongoose();
+  return 0;
+}