+#elif defined (__xtensa__) // ESP8266\r
+# define IRSND_FREQ_TYPE float\r
+# define IRSND_FREQ_30_KHZ (IRSND_FREQ_TYPE) (30000)\r
+# define IRSND_FREQ_32_KHZ (IRSND_FREQ_TYPE) (32000)\r
+# define IRSND_FREQ_36_KHZ (IRSND_FREQ_TYPE) (36000)\r
+# define IRSND_FREQ_38_KHZ (IRSND_FREQ_TYPE) (38000)\r
+# define IRSND_FREQ_40_KHZ (IRSND_FREQ_TYPE) (40000)\r
+# define IRSND_FREQ_56_KHZ (IRSND_FREQ_TYPE) (56000)\r
+# define IRSND_FREQ_455_KHZ (IRSND_FREQ_TYPE) (455000)\r