diff --git a/components/tc_bus/tc_bus.cpp b/components/tc_bus/tc_bus.cpp
index 8b0bd7e..199da3f 100644
--- a/components/tc_bus/tc_bus.cpp
+++ b/components/tc_bus/tc_bus.cpp
@@ -325,19 +325,15 @@ namespace esphome
                     // Turn off
                     reading_eeprom_ = false;
 
-                    
-
-                    const char* hexChars = "0123456789abcdef";
                     std::string hexString(eeprom_buffer_.size() * 2, ' '); // Reserviere den String mit fester Größe
 
                     for (std::size_t i = 0; i < eeprom_buffer_.size(); ++i)
                     {
                         uint8_t byte = eeprom_buffer_[i];
-                        hexString[2 * i]     = hexChars[(byte >> 4) & 0xF];
-                        hexString[2 * i + 1] = hexChars[byte & 0xF];
+                        hexString += format_hex(byte);
                     }
 
-                    ESP_LOGD(TAG, "Reading EEPROM: Result: %s", hexString);
+                    ESP_LOGD(TAG, "Reading EEPROM: Count: %i, Result: %s", eeprom_buffer_.size(), hexString);
                 }
                 else
                 {