diff --git a/main/app_networking.cpp b/main/app_networking.cpp
index 73bee9b..1b865d2 100644
--- a/main/app_networking.cpp
+++ b/main/app_networking.cpp
@@ -3,6 +3,7 @@
 #include <algorithm>
 #include <cstring>
 #include <variant>
+#include <cstdio>
 
 #include "esp_event.h"
 #include "esp_mac.h"
@@ -26,7 +27,7 @@ std::variant<MacAddress, std::monostate> s_peer;
 
 bool s_isBroadcastAddress(const std::uint8_t* mac)
 {
-  constexpr MacAddress broadcast_mac{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  };
+  constexpr MacAddress broadcast_mac{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
   return std::memcmp(mac, broadcast_mac.begin(), ESP_NOW_ETH_ALEN) == 0;
 }
 
@@ -35,6 +36,11 @@ bool s_isBroadcastAddress(const esp_now_recv_info_t* sender)
   return s_isBroadcastAddress(sender->src_addr);
 }
 
+constexpr MacAddress s_getBroadcastAddress()
+{
+  return MacAddress{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+}
+
 esp_err_t s_addPeer(const MacAddress& peer_address)
 {
   esp_now_peer_info_t broadcast_peer;
@@ -96,7 +102,7 @@ QueueHandle_t setupEspNow()
   ESP_ERROR_CHECK(esp_now_register_send_cb(s_cbEspNowSendComplete));
   ESP_ERROR_CHECK(esp_now_register_recv_cb(s_cbEspNowReceiveComplete));
 
-  const auto broadcast_mac = MacAddress{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+  const auto broadcast_mac = s_getBroadcastAddress();
   s_peer = broadcast_mac;
 
   ESP_ERROR_CHECK(s_addPeer(broadcast_mac));
@@ -104,6 +110,19 @@ QueueHandle_t setupEspNow()
   return s_esp_now_queue;
 }
 
+void sendHello()
+{
+  MacAddress mac;
+  ESP_ERROR_CHECK(esp_read_mac(mac.data(), ESP_MAC_WIFI_STA));
+
+  char buffer[100];
+  const std::size_t length = std::sprintf(buffer, "Hello from %02X:%02X:%02X:%02X:%02X:%02X.\n\r",
+    mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+
+  const auto broadcast_mac = s_getBroadcastAddress();
+  ESP_ERROR_CHECK(esp_now_send(broadcast_mac.data(), (uint8_t*)buffer, length));
+}
+
 const std::array<std::uint8_t, 128>& getRxBuffer()
 {
   return s_rx_buffer;
diff --git a/main/app_networking.hpp b/main/app_networking.hpp
index 3c68824..1ad9c4e 100644
--- a/main/app_networking.hpp
+++ b/main/app_networking.hpp
@@ -26,6 +26,7 @@ using MacAddress = std::array<std::uint8_t, 6>;
 
 void setupWifi();
 [[nodiscard]] QueueHandle_t setupEspNow();
+void sendHello();
 
 void sendData(const std::array<std::uint8_t, 128>& buffer, const std::size_t length);
 const std::array<std::uint8_t, 128>& getRxBuffer();
diff --git a/main/esp_tunnel.cpp b/main/esp_tunnel.cpp
index d0c75b2..8cc0175 100644
--- a/main/esp_tunnel.cpp
+++ b/main/esp_tunnel.cpp
@@ -151,6 +151,9 @@ extern "C" void app_main(void)
   xQueueAddToSet(s_esp_now_queue, s_queue_set);
   xQueueAddToSet(s_uart_queue, s_queue_set);
 
-  ESP_LOGI(LOG_TAG, "Setup completed.");
+  ESP_LOGI(LOG_TAG, "Setup completed. Sending hello.");
+
+  Networking::sendHello();
+
   xTaskCreate(s_mainTask, "main_task", 2048, nullptr, 4, &s_main_task);
 }