Update readme.md

readme.md

@@ -2,7 +2,7 @@
 
 This project offers an [ESPHome](https://esphome.io/index.html) component for integrating Samsung air conditioners into your home automation system. It provides the ability to monitor and control your AC units effortlessly.
 
-This component is designed to connect to the *Samsung HAVC devices with an F1/F2 communication bus* (between the indoor and the outdoor devices). 
+This component focuses on Samsung HAVC units (AC or heat pumps) that communicate between the indoor and outdoor units via a hardware bus (additional cables connecting each unit, usually F1/F2, sometimes called R1/R2).
 
 Samsung has employed different software protocols for their AC devices over the years. The older devices utilize the NonNASA protocol, while the newer ones utilize the NASA protocol. This ESPHome component is designed to support both protocols, ensuring compatibility with a wide range of Samsung AC units.
 
@@ -182,4 +182,4 @@ The NonNASA protocol is specifically desined to transport AC data.
 
 Thanks goes to DannyDeGaspari https://github.com/DannyDeGaspari/Samsung-HVAC-buscontrol. He made the initial attempt to describe the older NonNASA protocol.
 
-Thanks goes to matthias882 https://github.com/matthias882/some_esphome_components. He made a basic ESPHome component for the older NonNASA protocol which was a perfect source to start playing and learning to communicate with the AC and use ESPHome.
+Thanks goes to matthias882 https://github.com/matthias882/some_esphome_components. He made a basic ESPHome component for the older NonNASA protocol which was a perfect source to start playing and learning to communicate with the AC and use ESPHome.