From 57a41f58247315b5ec51f03d298204b1fa36b295 Mon Sep 17 00:00:00 2001
From: cpq <sergey.lyubka@cesanta.com>
Date: Fri, 1 May 2026 13:52:47 +0100
Subject: [PATCH] Update minimal

---
 tutorials/device-dashboard/full/dashboard.c   | 18 +++++-----
 .../device-dashboard/minimal/dashboard.c      | 33 +++++++++----------
 2 files changed, 25 insertions(+), 26 deletions(-)

diff --git a/tutorials/device-dashboard/full/dashboard.c b/tutorials/device-dashboard/full/dashboard.c
index d85c7507..e02956e9 100644
--- a/tutorials/device-dashboard/full/dashboard.c
+++ b/tutorials/device-dashboard/full/dashboard.c
@@ -3,8 +3,6 @@
 
 #include "mongoose.h"
 
-static struct mg_dash s_dashboard;
-
 // Action buttons
 static bool s_action1, s_action2;
 static uint64_t s_action2_timeout;
@@ -165,18 +163,20 @@ static struct mg_field_set set_graph2 = {
 };
 
 void mg_dash_init(struct mg_mgr *mgr) {
-  MG_DASH_ADD_FIELD_SET(&s_dashboard, &set_leds);
-  MG_DASH_ADD_FIELD_SET(&s_dashboard, &set_metrics);
-  MG_DASH_ADD_FIELD_SET(&s_dashboard, &set_settings);
-  MG_DASH_ADD_FIELD_SET(&s_dashboard, &set_graph1);
-  MG_DASH_ADD_FIELD_SET(&s_dashboard, &set_graph2);
-  MG_DASH_ADD_FIELD_SET(&s_dashboard, &set_actions);
+  static struct mg_dash dash;  // Important: keep it static!
+
+  MG_DASH_ADD_FIELD_SET(&dash, &set_leds);
+  MG_DASH_ADD_FIELD_SET(&dash, &set_metrics);
+  MG_DASH_ADD_FIELD_SET(&dash, &set_settings);
+  MG_DASH_ADD_FIELD_SET(&dash, &set_graph1);
+  MG_DASH_ADD_FIELD_SET(&dash, &set_graph2);
+  MG_DASH_ADD_FIELD_SET(&dash, &set_actions);
 
   // Add two fake files - for demonstration
   mg_dash_file_add(mg_str("device-config.json"), 1234);
   mg_dash_file_add(mg_str("device-log-2026-04-25.txt"), 1327854);
 
-  mg_http_listen(mgr, MG_HTTP_ADDR, mg_dash_ev_handler, &s_dashboard);
+  mg_http_listen(mgr, MG_HTTP_ADDR, mg_dash_ev_handler, &dash);
 }
 
 void mg_dash_poll(struct mg_mgr *mgr) {
diff --git a/tutorials/device-dashboard/minimal/dashboard.c b/tutorials/device-dashboard/minimal/dashboard.c
index 278d93d6..6d6291f8 100644
--- a/tutorials/device-dashboard/minimal/dashboard.c
+++ b/tutorials/device-dashboard/minimal/dashboard.c
@@ -6,32 +6,31 @@
 static bool s_led1;
 static char s_version[10];
 
+static void read_status(void) {
+  MG_INFO(("READING STATUS"));
+  // s_led1 = gpio_read(LED1_PIN);
+  mg_snprintf(s_version, sizeof(s_version), "1.2.3");
+}
+
+static void write_status(void) {
+  MG_INFO(("WRITING STATUS"));
+  // gpio_write(LED1_PIN, s_led1);
+}
+
 static struct mg_field fields_status[] = {
     {"led1", MG_VAL_BOOL, &s_led1, sizeof(s_led1)},
     {"version", MG_VAL_STR, &s_version, sizeof(s_version)},
     {NULL, MG_VAL_INT, NULL, 0},
 };
 
-static void read_status(void) {
-  MG_INFO(("READING STATUS"));
-  //s_led1 = gpio_read(LED1_PIN);
-  mg_snprintf(s_version, sizeof(s_version), "1.2.3");
-}
-
-static void write_status(void) {
-  MG_INFO(("WRITING STATUS"));
-  //gpio_write(LED1_PIN, s_led1);
-}
-
-// Each field set translates to REST API /api/NAME
-static struct mg_field_set field_sets[] = {
-    {"status", fields_status, read_status, write_status, 0, 0},
-    {0, 0, 0, 0, 0, 0},
+static struct mg_field_set field_set_status = {
+    "status", fields_status, read_status, write_status, 0, 0, NULL,
 };
-static struct mg_dash s_dashboard = {field_sets, NULL, NULL};
 
 void mg_dash_init(struct mg_mgr *mgr) {
-  mg_http_listen(mgr, MG_HTTP_ADDR, mg_dash_ev_handler, &s_dashboard);
+  static struct mg_dash dash;  // Important: keep it static!
+  MG_DASH_ADD_FIELD_SET(&dash, &field_set_status);
+  mg_http_listen(mgr, MG_HTTP_ADDR, mg_dash_ev_handler, &dash);
 }
 
 void mg_dash_poll(struct mg_mgr *mgr) {