diff --git a/CAR_GPS_TRACKER.ino b/CAR_GPS_TRACKER.ino
index 5176fa2..b6edef9 100644
--- a/CAR_GPS_TRACKER.ino
+++ b/CAR_GPS_TRACKER.ino
@@ -43,6 +43,17 @@ void setup() {
 
   // GNSS power on (if applicable later)
   NetMgr::sendAT("AT+CGNSPWR=1", 2000);
+
+OTAMgr::setCurrentVersion(FW_VERSION);
+String ver, url, sha;
+if (OTAMgr::check(CFG.baseUrl, CFG.imei, ver, url, sha)) {
+  Serial.println("OTA available: " + ver + " -> " + url);
+  // Optionally apply now:
+  // OTAMgr::apply(url, sha);
+}
+
+
+
 }
 
 void loop() {
diff --git a/src/core/CommandMgr.cpp b/src/core/CommandMgr.cpp
index 991436a..b9e9d45 100644
--- a/src/core/CommandMgr.cpp
+++ b/src/core/CommandMgr.cpp
@@ -1,6 +1,7 @@
 #include "CommandMgr.hpp"
 #include "HttpClient.hpp"
 #include "AppConfig.hpp"
+#include "OTAMgr.hpp"
 extern AppConfig CFG;
 
 namespace
@@ -13,6 +14,41 @@ namespace
   // Extract array of objects from a JSON string like: [{"id":..,"type":"..","payload":{...}}, ...]
   // We’ll do a naive split on "},{" for small payloads; replace with proper JSON parsing later.
 
+  static int pickInt(const String &j, const char *key)
+  {
+    String pat = String("\"") + key + "\":";
+    int k = j.indexOf(pat);
+    if (k < 0)
+      return -1;
+    k += pat.length();
+    while (k < (int)j.length() && (j[k] == ' ' || j[k] == ':'))
+      k++;
+    int i = k;
+    while (i < (int)j.length() && isDigit(j[i]))
+      i++;
+    if (i <= k)
+      return -1;
+    return j.substring(k, i).toInt();
+  }
+
+  static String pickStr(const String &j, const char *key)
+  {
+    String pat = String("\"") + key + "\":";
+    int k = j.indexOf(pat);
+    if (k < 0)
+      return "";
+    k += pat.length();
+    while (k < (int)j.length() && (j[k] == ' ' || j[k] == '\"' || j[k] == ':'))
+      k++;
+    if (k > 0 && j[k - 1] == '\"')
+    {
+      int e = j.indexOf('\"', k);
+      if (e > k)
+        return j.substring(k, e);
+    }
+    return "";
+  }
+
   long extractId(const String &obj)
   {
     String pat = "\"id\":";
@@ -248,10 +284,67 @@ namespace CommandMgr
       }
       else if (c.type == "ota")
       {
-        String url = /* parse from payload */;
-        String sha = /* parse if provided */;
-        execOk = OTAMgr::apply(url, sha);
-        detail = execOk ? "ota applied" : "ota failed";
+
+        String url = pickStr(c.payload, "url");
+        String sha = pickStr(c.payload, "sha256");
+        if (!url.length())
+        {
+          execOk = false;
+          detail = "missing url";
+        }
+        else
+        {
+          execOk = OTAMgr::apply(url, sha);
+          detail = execOk ? "ota applied" : "ota failed";
+        }
+      }
+      else if (c.type == "telemetry_sec")
+      {
+        int sec = pickInt(c.payload, "telemetry_sec");
+        if (sec > 0)
+        {
+          CFG.telemetryPeriodSec = (uint32_t)sec;
+          Serial.printf("Telemetry sec set to %u\n", CFG.telemetryPeriodSec);
+          execOk = true;
+          detail = "telemetry updated";
+        }
+        else
+        {
+          execOk = false;
+          detail = "bad telemetry_sec";
+        }
+      }
+      else if (c.type == "poll_sec")
+      {
+        int sec = pickInt(c.payload, "poll_sec");
+        if (sec > 0)
+        {
+          CFG.commandPollSec = (uint32_t)sec;
+          Serial.printf("Poll sec set to %u\n", CFG.commandPollSec);
+          execOk = true;
+          detail = "poll updated";
+        }
+        else
+        {
+          execOk = false;
+          detail = "bad poll_sec";
+        }
+      }
+      else if (c.type == "wifi")
+      {
+        String tgt = pickStr(c.payload, "target");
+        if (tgt.equalsIgnoreCase("home"))
+        {
+          CFG.atHomeRequested = true;
+          Serial.println("WiFi home connect requested");
+          execOk = true;
+          detail = "wifi home requested";
+        }
+        else
+        {
+          execOk = false;
+          detail = "unknown wifi target";
+        }
       }
       else
       {
@@ -274,6 +367,15 @@ namespace CommandMgr
 
   bool handleSleep(const String &payload)
   {
+
+    int sec = pickInt(payload, "interval_sec");
+    if (sec > 0)
+    {
+      CFG.sleepSec = (uint32_t)sec;
+      Serial.printf("Sleep sec set to %u\n", CFG.sleepSec);
+      return true;
+    }
+
     // TODO: parse {"interval_sec":120}
     Serial.println("handleSleep payload: " + payload);
     return true;