can anyone tell me if there is any specific gpio pin to be used for RF transmitter and receiver and IR transmitter and receiver in a nodemcu with esp8266 ?
I don’t recall any specific recommendations for ir. This page is useful https://randomnerdtutorials.com/esp8266-pinout-reference-gpios/
i asked this question because all the readily available devices in the market uses GPIO14 as remote transmitter , why ?
see this link
remote_transmitter :
pin :
number : GPIO14
That’s just a coincidence. Just make sure that you don’t use the pins used during boot. I am not sure what project you are implementing, I had issues with a nodemcu but It works fine with the D1 mini.