diff --git a/Examples/1_LoRa_Sensor/fdrs_sensor.h b/Examples/1_LoRa_Sensor/fdrs_sensor.h
index f3b0464..9135711 100644
--- a/Examples/1_LoRa_Sensor/fdrs_sensor.h
+++ b/Examples/1_LoRa_Sensor/fdrs_sensor.h
@@ -116,7 +116,7 @@ void beginFDRS() {
   DBG("Initializing LoRa!");
   DBG(BAND);
   DBG(SF);
-#ifndef __AVR__
+#ifdef ESP32
   SPI.begin(SCK, MISO, MOSI, SS);
 #endif
   LoRa.setPins(SS, RST, DIO0);
diff --git a/Examples/2_ESPNOW_Sensor/fdrs_sensor.h b/Examples/2_ESPNOW_Sensor/fdrs_sensor.h
index f3b0464..9135711 100644
--- a/Examples/2_ESPNOW_Sensor/fdrs_sensor.h
+++ b/Examples/2_ESPNOW_Sensor/fdrs_sensor.h
@@ -116,7 +116,7 @@ void beginFDRS() {
   DBG("Initializing LoRa!");
   DBG(BAND);
   DBG(SF);
-#ifndef __AVR__
+#ifdef ESP32
   SPI.begin(SCK, MISO, MOSI, SS);
 #endif
   LoRa.setPins(SS, RST, DIO0);
diff --git a/FDRS_Sensor/fdrs_sensor.h b/FDRS_Sensor/fdrs_sensor.h
index f3b0464..9135711 100644
--- a/FDRS_Sensor/fdrs_sensor.h
+++ b/FDRS_Sensor/fdrs_sensor.h
@@ -116,7 +116,7 @@ void beginFDRS() {
   DBG("Initializing LoRa!");
   DBG(BAND);
   DBG(SF);
-#ifndef __AVR__
+#ifdef ESP32
   SPI.begin(SCK, MISO, MOSI, SS);
 #endif
   LoRa.setPins(SS, RST, DIO0);