Fix

components/tc_bus/tc_bus.cpp

@@ -332,7 +332,7 @@ namespace esphome
 
                     for (std::size_t i = 0; i < eeprom_buffer_.size(); ++i)
                     {
-                        uint8_t byte = data[i];
+                        uint8_t byte = eeprom_buffer_[i];
                         hexString[2 * i]     = hexChars[(byte >> 4) & 0xF];
                         hexString[2 * i + 1] = hexChars[byte & 0xF];
                     }