Update content/hardware/05.pro-solutions/solutions-and-kits/opta/tutorials/getting-started-with-rs485/content.md

Co-authored-by: Julián Caro Linares <[email protected]>

Author: BenjaminDannegard

content/hardware/05.pro-solutions/solutions-and-kits/opta/tutorials/getting-started-with-rs485/content.md

@@ -159,7 +159,7 @@ The values the device can receive and the result:
 
 ## Conclusion
 
-In this tutorial we went through how to establish a Modbus RS485 connection between two Optas. And then how to write sketches using the `ArduinoRS485.h` library to send and receive values between these two devices. Finally the tutorial showed how to take these values sent with RS485 to interact with the Opta.
+In this tutorial we went through how to establish a Modbus RTU connection between two Optas. And then how to write sketches using the `ArduinoRS485.h` library to send and receive values between these two devices. Finally the tutorial showed how to take these values sent with RS485 to interact with the Opta.
 
 ### Next Steps