diff --git a/lib/olt_lib/ir_tx/__init__.py b/lib/olt_lib/ir_tx/__init__.py
index f1dc0a3..68d5595 100644
--- a/lib/olt_lib/ir_tx/__init__.py
+++ b/lib/olt_lib/ir_tx/__init__.py
@@ -85,7 +85,7 @@ class IR:
 
     # Public interface
     # Before populating array, zero pointer, set notional carrier state (off).
-    def transmit(self, tx1, tx2, tx3, validate=False):  # NEC: toggle is unused
+    async def transmit(self, tx1, tx2, tx3, validate=False):  # NEC: toggle is unused
         while self.busy():
             pass
         t = ticks_us()
@@ -98,17 +98,18 @@ class IR:
                 raise ValueError('Toggle out of range', tx3)
         self.aptr = 0  # Inital conditions for tx: index into array
         self.carrier = False
-        self.tx(tx1, tx2, tx3)  # Subclass populates ._arr
-        self.trigger()  # Initiate transmission
+        await self.tx(tx1, tx2, tx3)  # Subclass populates ._arr
+        asyncio.create_task(self.trigger())  # Initiate transmission
         if self.timeit:
             dt = ticks_diff(ticks_us(), t)
             print('Time = {}μs'.format(dt))
 
-        #asyncio.sleep_ms(2)    
-        sleep_ms(1)  # Ensure ._busy is set prior to return
+        while self.busy():
+            await asyncio.sleep_ms(1)    
+        #sleep_ms(1)  # Ensure ._busy is set prior to return
 
     # Subclass interface
-    def trigger(self):  # Used by NEC to initiate a repeat frame
+    async def trigger(self):  # Used by NEC to initiate a repeat frame
         if ESP32:
             self._rmt.write_pulses(tuple(self._mva[0 : self.aptr]))
         elif RP2:
diff --git a/lib/olt_lib/ir_tx/olt.py b/lib/olt_lib/ir_tx/olt.py
index 46c38a3..15e086f 100644
--- a/lib/olt_lib/ir_tx/olt.py
+++ b/lib/olt_lib/ir_tx/olt.py
@@ -24,7 +24,7 @@ class LT_ABC(IR):
         
 
 
-    def tx(self, tx1, tx2, tx3):
+    async def tx(self, tx1, tx2, tx3):
         bits = self.bits
         v = tx3 & 0xff
         v |= (tx2 & 0xff) << 8
diff --git a/main.py b/main.py
index d95ff64..9b0d154 100644
--- a/main.py
+++ b/main.py
@@ -71,7 +71,7 @@ log_level = logging.DEBUG
 #log_level = logging.ERROR
 logging.basicConfig(level=log_level, format='%(name)s - %(levelname)s - %(message)s')
 logger = logging.getLogger(__name__)
-
+#PYTHONASYNCIODEBUG=1
 
 ### alive check ###
 async def alive_check(): 
@@ -90,7 +90,7 @@ async def alive_check():
 
 ### OLT Start game command functions ###
 async def start_game_comand(btn, rgb, ir_tx):
-    logger.debug("Start game command")
+    logger.debug("Start game command on button press")
     await rgb.set_red()
     btn.press_func(None)
     btn.release_func(None)
@@ -106,7 +106,10 @@ async def start_game_comand(btn, rgb, ir_tx):
         await rgb.set_green()
         # IR TX send  
         logger.debug("Start game IR TX transmit")
-        ir_tx.transmit(tx1, tx2, tx3, False)
+        asyncio.create_task(ir_tx.transmit(tx1, tx2, tx3, False))
+        #loop = asyncio.get_running_loop()
+        #loop.set_exception_handler(exception_handler)
+        await asyncio.sleep_ms(50)
         await btn.release.wait()
         logger.debug("Start game button released")
         await rgb.set_red()
@@ -157,11 +160,15 @@ async def main(proto):
     while True:
         await asyncio.sleep(1)
 
-
+def exception_handler(loop, context):
+	# log exception
+    print(context['exception'])
 
 ### asyncio start main ###
 try:
+    
     asyncio.run(main(0))
+    
 
 except KeyboardInterrupt:
     logger.exception("App Interrupted")