diff --git a/hr50-remote-display.ino b/hr50-remote-display.ino
index 426615b..5a66e51 100644
--- a/hr50-remote-display.ino
+++ b/hr50-remote-display.ino
@@ -5,23 +5,77 @@
 #include <ArduinoJson.h>
 #include "hr50_fonts.h"
 
+#define ESP_INTR_FLAG_DEFAULT 0
+#define PRG_BUTTON 0
+
+
 const char* ssid = "<WIFI-SSID>";
 const char* password = "<WIFI-PASSWORD>";
-String api_url = "http://<IP_OF_HR50_API>:5000/status";
-
-
+String api_base_url = "http://<IP_OF_HR50_API>:5000";
+//String api_button_url = api_base_url + "/?cmd=hrtu1";
+String api_button_url = api_base_url + "/exec";
+String api_status_url = api_base_url + "/status";
 int first_row = 0;
 int second_row = 24;
 int third_row = 48;
 int left = 0;
 int right = 128;
+String cmd_status = "";
+
+SemaphoreHandle_t semaphore = nullptr;
+
+void IRAM_ATTR handler(void* arg) {
+  xSemaphoreGiveFromISR(semaphore, NULL);
+}
+
+void button_task(void* arg) {
+  for (;;) {
+    if (xSemaphoreTake(semaphore, portMAX_DELAY) == pdTRUE) {
+      cmd_status = send_http_request(api_button_url);
+    }
+  }
+}
+
+String send_http_request(String url) {
+    HTTPClient http;
+    String response = "";
+    http.begin(url.c_str());
+    // Send HTTP GET request
+    int httpResponseCode = http.GET();
+    if (httpResponseCode > 0) {
+      response = http.getString();
+    }
+    else {
+      printError("HTTPError: " + (String)httpResponseCode);
+    }
+    http.end();
+    return response;
+}
+
 
 void setup() {
   Heltec.begin(true /*DisplayEnable Enable*/, false /*LoRa Disable*/, false /*Serial Enable*/);
   Heltec.display->flipScreenVertically();
   Heltec.display->setFont(DialogInput_plain_16);
+  
   WiFi.begin(ssid, password);
   delay(4000);
+
+  // Configure PRG button of the Heltec
+  semaphore = xSemaphoreCreateBinary();
+  // Setup the button GPIO pin
+  gpio_pad_select_gpio(PRG_BUTTON );
+  // Quite obvious, a button is a input
+  gpio_set_direction(GPIO_NUM_0, GPIO_MODE_INPUT);
+  // Trigger the interrupt when going from HIGH -> LOW ( == pushing button)
+  gpio_set_intr_type(GPIO_NUM_0, GPIO_INTR_NEGEDGE);
+  // Associate button_task method as a callback
+  xTaskCreate(button_task, "prg_button_task", 4096, NULL, 10, NULL);
+  // Install ISR service
+  gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);
+  // Add button handler to the ISR
+  gpio_isr_handler_add(GPIO_NUM_0, handler, NULL);
+
 }
 
 void printError(String err) {
@@ -31,38 +85,18 @@ void printError(String err) {
   Heltec.display->display();
 }
 
-void loop() {
-  //Check WiFi connection status
-  if (WiFi.status() == WL_CONNECTED) {
-    HTTPClient http;
-    String payload = "";
-    http.begin(api_url.c_str());
 
-    // Send HTTP GET request
-    int httpResponseCode = http.GET();
+void print_status_screen(JsonObject status_json) {
 
-    if (httpResponseCode > 0) {
-      payload = http.getString();
-    }
-    else {
-      printError("HTTPError: " + (String)httpResponseCode);
-    }
-    // Free resources
-    http.end();
-
-    StaticJsonDocument<200> doc;
-    deserializeJson(doc, payload);
-    JsonObject obj = doc.as<JsonObject>();
-
-    if ( obj != NULL and obj["PTT"].as<String>() != "ERR") {
-      String band = obj["BND"].as<String>();
-      String pep = obj["PEP"].as<String>();
-      String avg = obj["AVG"].as<String>();
-      String swr = obj["SWR"].as<String>();
-      String voltage = obj["VLT"].as<String>();
+    if ( status_json != NULL and status_json["PTT"].as<String>() != "ERR") {
+      String band = status_json["BND"].as<String>();
+      String pep = status_json["PEP"].as<String>();
+      String avg = status_json["AVG"].as<String>();
+      String swr = status_json["SWR"].as<String>();
+      String voltage = status_json["VLT"].as<String>();
       String power = pep + "W/" + avg + "W";
-      String ptt = obj["PTT"].as<String>();
-      String temp = obj["TMP"].as<String>();
+      String ptt = status_json["PTT"].as<String>();
+      String temp = status_json["TMP"].as<String>();
 
       // clear the display
       Heltec.display->clear();
@@ -70,7 +104,11 @@ void loop() {
       Heltec.display->setTextAlignment(TEXT_ALIGN_LEFT);
       Heltec.display->drawString(left, first_row, band );
       Heltec.display->drawString(left, second_row, power );
-      Heltec.display->drawString(left, third_row, voltage );
+      if ( cmd_status == "" ) {
+        Heltec.display->drawString(left, third_row, voltage );
+      } else {
+        Heltec.display->drawString(left, third_row, cmd_status );
+      }
       // print right column
       Heltec.display->setTextAlignment(TEXT_ALIGN_RIGHT);
       Heltec.display->drawString(right, first_row, swr );
@@ -87,6 +125,18 @@ void loop() {
       Heltec.display->drawString(58, third_row, "(!)" );
       Heltec.display->display();
     }
+  
+}
+
+void loop() {
+  //Check WiFi connection status
+  if (WiFi.status() == WL_CONNECTED) {
+    String response = send_http_request(api_status_url);
+    StaticJsonDocument<200> doc;
+    deserializeJson(doc, response);
+    JsonObject obj = doc.as<JsonObject>();
+    print_status_screen(obj);
+ 
   }
   else {
     printError("No WiFi!");