log wifi mac on boot (#5)

tidbyt · Jul 13, 2023 · 1fa602e · 1fa602e
1 parent ef000e1
commit 1fa602e
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Showing 3 changed files with 18 additions and 1 deletion.
diff --git a/src/main.c b/src/main.c
@@ -38,6 +38,12 @@ void app_main(void) {
   }
   esp_register_shutdown_handler(&wifi_shutdown);
 
+  uint8_t mac[6];
+  if (!wifi_get_mac(mac)) {
+    ESP_LOGI(TAG, "WiFi MAC: %02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1],
+             mac[2], mac[3], mac[4], mac[5]);
+  }
+
   for (;;) {
     uint8_t* webp;
     size_t len;

diff --git a/src/wifi.c b/src/wifi.c
@@ -131,3 +131,12 @@ void wifi_shutdown() {
   esp_wifi_stop();
   esp_wifi_deinit();
 }
+
+int wifi_get_mac(uint8_t mac[6]) {
+  esp_err_t err = esp_wifi_get_mac(WIFI_IF_STA, mac);
+  if (err != ESP_OK) {
+    ESP_LOGE(TAG, "Failed to get MAC address: %s", esp_err_to_name(err));
+    return 1;
+  }
+  return 0;
+}
diff --git a/src/wifi.h b/src/wifi.h
@@ -2,4 +2,6 @@
 
 int wifi_initialize(const char *ssid, const char *password);
 
-void wifi_shutdown();
+void wifi_shutdown();
+
+int wifi_get_mac(uint8_t mac[6]);