diff --git a/README.md b/README.md
index 059f999..34a8fbf 100644
--- a/README.md
+++ b/README.md
@@ -198,8 +198,12 @@ For translating these error codes to human-readable strings, the library offers
 The library has been tested and confirmed to work on the following boards:
 
 - Arduino Uno R3 (ATmega328P - AVR architecture)
+- `*` NodeMCU ESP32S v1.1 **`ESP-WROOM-32`** (Tensilica Xtensa LX6 - xtensa architecture)
+- `*` NodeMCU ESP8266 v1.0 **`ESP8266MOD`** (Tensilica Xtensa LX106 - xtensa architecture)
 
-I understand that there are many boards and architectures out there, and it's challenging for a single developer to test on all of them. 
+`*` For xtensa-based boards (ESP32 and ESP8266), a delay is required between consecutive method calls for optimal performance. Check [Examples](/examples/) for the implementation details.
+
+Given the vast number of boards and architectures available, it's a challenge for a solo developer to test on all. Community contributions in terms of compatibility testing are highly encouraged.
 
 ### Contribute by Testing