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 Understanding what is going on I2C In the previous step I hooked up my logic analyzer on the I2C to see how the communication inside the mic actually looks like. Partially because I want to understand better how to reprogram the microphones EEPROM but also because I'm just curious and want to see what is really going on. After powering up the microphone this is the output from I2C. write to 0x3E ack data: 0xE0 0xC8 0xF0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  write to 0x3E ack data: 0xE0 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  write to 0x50 ack data: 0x10  read to 0x50 ack data: 0x11 write to 0x51 ack data: 0x1A  read to 0x50 ack data: 0xA9 write to 0x51 ack data: 0xB3  read to 0x50 ack data: 0x1F write to 0x51 ack data: 0xAE  read to 0x50 ack data: 0x03 write to 0x51 ack data: 0xAF  read to 0x50 ack data: 0x20 write to 0x51 ack data: 0xAC  read to 0x50 ack data: 0xFC write to 0x51 ack data: 0xAD  read to 0x50 ack ...

I'm somehow interested in audio production. But not it more my pet hobby, nothing that would generate decent income. This means I usually don't want to spend much of money on the equipment.  Right about now is quite good time to get some old-ish wireless audio equipment for decent price. The reason is that there was change ( info ) in wireless bands and bands that used to be free before are not available for the professional audio anymore. That means that lot of productions are ditching their stuff to buy new one, compatible. But not all the old stuff is useless as some of it can be reprogrammed. There is tight window from 822 to 830 MHz in EU. This window is quite narrow, but at least it should granted all the time for professional audio. Other option is to go below 700Mhz, but then you might get into collision with local TV transmitter. Therefore I settled for the narrow band since I don't plan to use too many transmitters at once and this should work for me well. My movi...