Update Payload_BME280_MPU6050_XS.ino fixed blink

stempayload/Payload_BME280_MPU6050_XS/Payload_BME280_MPU6050_XS.ino

@@ -369,6 +369,8 @@ void blink(int length)
     digitalWrite(LED_BUILTIN, HIGH);   // set the built-in LED ON
 #endif  
 
+delay(length);	
+ 
 #if defined(ARDUINO_ARCH_STM32F0) || defined(ARDUINO_ARCH_STM32F1) || defined(ARDUINO_ARCH_STM32F3) || defined(ARDUINO_ARCH_STM32F4) || defined(ARDUINO_ARCH_STM32L4)
   digitalWrite(PC13, HIGH);    // turn the LED off by making the voltage LOW
 #endif