diff --git a/things/DeviceIrRx.h b/things/DeviceIrRx.h
index f2d6192..0eb845e 100644
--- a/things/DeviceIrRx.h
+++ b/things/DeviceIrRx.h
@@ -23,7 +23,7 @@ class DeviceIrRx : public Device {
 };
 
 void DeviceIrRx::deviceSetup() {
-  //pinMode(pin_irrx, INPUT);
+  // pinMode(pin_irrx, INPUT); // this is done by enableIRIn()
   irrecv.enableIRIn();
   pinMode(pin_power, OUTPUT);
   digitalWrite(pin_power, HIGH);
diff --git a/things/DeviceIrTx.h b/things/DeviceIrTx.h
index 14fd82e..ae5a6d4 100644
--- a/things/DeviceIrTx.h
+++ b/things/DeviceIrTx.h
@@ -21,7 +21,8 @@ class DeviceIrTx : public Device {
 };
 
 void DeviceIrTx::deviceSetup() {
-  pinMode(pin_irtx, OUTPUT);
+  // pinMode(pin_irtx, OUTPUT); // this is done by begin()
+  irsend.begin();
 }
 
 bool DeviceIrTx::irTxHandler(String message) {