9/2/2023 0 Comments Virtual wire library arduino![]() This makes it difficult to actually capture the “too-fast” data from noise with a homemade soundcard logic analyzer or an ordinary oscilloscope for analytical review/reverse-engineering purposes. ![]() Another slightly annoying thing is that, when there is no signal availability, the receiver’s AGC circuit gets ramped up and all you get is unwanted noise on the data pin. Surprisingly, it’s not widely noted that the ISM (Industrial, Scientific, and Medical) band, centered on 433.92 MHz, actually covers a bounteous 1.7 MHz between 433.05 MHz and 434.79 MHz. These cheap short-range radio modules can be used with almost all microcontrollers for a broad range of applications that require wire-free radio control, though in this case, we will use it as an RF sniffer. These days, 433-MHz RF transmitter/receiver modules are very popular with electronics hobbyists and tinkerers.
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