diff --git a/sx126x.cpp b/sx126x.cpp
index 2ddd8ee..9fd613e 100644
--- a/sx126x.cpp
+++ b/sx126x.cpp
@@ -202,14 +202,12 @@ void sx126x::loraMode() {
 
 void sx126x::waitOnBusy() {
     unsigned long time = millis();
-    if (_busy != -1) {
-        while (digitalRead(_busy) == HIGH)
-        {
-            if (millis() >= (time + 100)) {
-                break;
-            }
-            // do nothing
+    while (digitalRead(_busy) == HIGH)
+    {
+        if (millis() >= (time + 100)) {
+            break;
         }
+        // do nothing
     }
 }
 
diff --git a/sx126x.h b/sx126x.h
index 5e0ff4d..c3b0668 100644
--- a/sx126x.h
+++ b/sx126x.h
@@ -9,14 +9,14 @@
 
 #include <Arduino.h>
 #include <SPI.h>
-#include "Modem.h"
+#include "Interfaces.h"
 
 #define LORA_DEFAULT_SS_PIN    10
 #define LORA_DEFAULT_RESET_PIN 9
 #define LORA_DEFAULT_DIO0_PIN  2
 #define LORA_DEFAULT_RXEN_PIN  -1
 #define LORA_DEFAULT_TXEN_PIN  -1
-#define LORA_DEFAULT_BUSY_PIN  -1
+#define LORA_DEFAULT_BUSY_PIN  11
 
 #define PA_OUTPUT_RFO_PIN      0
 #define PA_OUTPUT_PA_BOOST_PIN 1
@@ -139,6 +139,7 @@ private:
   uint8_t _packet[255];
   bool _preinit_done;
   void (*_onReceive)(int);
+  bool _tcxo;
 };
 
 extern sx126x sx126x_modem;
diff --git a/sx128x.cpp b/sx128x.cpp
index c632697..9c4a249 100644
--- a/sx128x.cpp
+++ b/sx128x.cpp
@@ -206,14 +206,12 @@ void sx128x::loraMode() {
 
 void sx128x::waitOnBusy() {
     unsigned long time = millis();
-    if (_busy != -1) {
-        while (digitalRead(_busy) == HIGH)
-        {
-            if (millis() >= (time + 100)) {
-                break;
-            }
-            // do nothing
+    while (digitalRead(_busy) == HIGH)
+    {
+        if (millis() >= (time + 100)) {
+            break;
         }
+        // do nothing
     }
 }
 
diff --git a/sx128x.h b/sx128x.h
index 213fc48..ad76d51 100644
--- a/sx128x.h
+++ b/sx128x.h
@@ -9,14 +9,14 @@
 
 #include <Arduino.h>
 #include <SPI.h>
-#include "Modem.h"
+#include "Interfaces.h"
 
 #define LORA_DEFAULT_SS_PIN    10
 #define LORA_DEFAULT_RESET_PIN 9
 #define LORA_DEFAULT_DIO0_PIN  2
 #define LORA_DEFAULT_RXEN_PIN  -1
 #define LORA_DEFAULT_TXEN_PIN  -1
-#define LORA_DEFAULT_BUSY_PIN  -1
+#define LORA_DEFAULT_BUSY_PIN  11
 
 #define PA_OUTPUT_RFO_PIN      0
 #define PA_OUTPUT_PA_BOOST_PIN 1