I make program to control ac with nodered, using IR Transmit.
I had follow this video https://youtu.be/ZiCPfNIP5p8 but stack in this step
when i tried run in terminal followed this tutorial http://www.piddlerintheroot.com/ir-blaster-lirc/ when i typed : sudo lircd --device /dev/lirc0
there is warning
and when i typed : irsend SEND_ONCE LGE_6711A20015N KEY_O
hardware does not support sending
Error running command: Input/output error
I need suggestion and solusion please.