Please do a infrared wireless audio transmission, now I really do not to come out

CodePudding user response:

Want to how to transfer? Can transmit digital data, also can be the audio frequency modulation, amplitude modulation and phase modulation after transmission

CodePudding user response:

Infrared communication module, don't start from scratch

CodePudding user response:

reference 1/f, worldy response:

to want how to transport? Can transmit digital data, also can be the audio frequency modulation, amplitude modulation and phase modulation transfer after

Just to digital signal transmission, oneself do not to come out now, are you meowed can help me

CodePudding user response:

references to walk on the second floor of black tea response:

have infrared communication module, need not oneself from scratch

Do not to come out the SOB

CodePudding user response:

Infrared wireless, how much you want to get the frequency, the premise is you can look at receiving pipe receives high frequency, sending data validation, the audio sampling rate lower, should be no big problem,

CodePudding user response:

If there is no dedicated chip:
You do with LM567 or 555 audio modulation, fundamental frequency in between 38 to 40 KHZ, then drive infrared LED emission (multiple, multiple),
Receiving decoding using LM567, also because of the high sensitivity, input can not enlarge, directly in the infrared receiving tube (can add lens, and improve the receiving range and Angle), will finally demodulation output filter amplifier can be simple,
When I was 20 years ago design, hope to cherish q3940776!