I have searched thoroughly but still confused which IR transmitter will be best for making a universal remote of TV and AC.
Standard frequency is 38 kHz and others are 36, 38, 40, 42, 48 and 56 kHz.
Can I use 940 nm wavelength IR LED as a transmitter for my application, just for clarification?
Just like "Xiaomi Original Xiaomi Universal IR Remote Controller".
So please, suggest which will be best for my application.