From d9568251dcbde7aff3d788a964ceef66268a9f4a Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Mon, 5 Jan 2026 09:16:04 -1000
Subject: [PATCH] [thermopro_ble] Reduce heap allocation with stack-based
 string formatting

---
 esphome/components/thermopro_ble/thermopro_ble.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/esphome/components/thermopro_ble/thermopro_ble.cpp b/esphome/components/thermopro_ble/thermopro_ble.cpp
index 4b43c9b39e..2c90ee23f8 100644
--- a/esphome/components/thermopro_ble/thermopro_ble.cpp
+++ b/esphome/components/thermopro_ble/thermopro_ble.cpp
@@ -47,7 +47,8 @@ bool ThermoProBLE::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
     return false;
   }
 
-  ESP_LOGVV(TAG, "parse_device(): MAC address %s found.", device.address_str().c_str());
+  char addr_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
+  ESP_LOGVV(TAG, "parse_device(): MAC address %s found.", device.address_str_to(addr_buf));
 
   // publish signal strength
   float signal_strength = float(device.get_rssi());