Hello
I created this custom stereo digital volume control that I hooked to my stm32 black pill, but I'm struggling to make it work! I wrote my bare metal I2C driver, which works with other I2c peripherals, but not with this one. As a matter of fact, I get no I2C activity on my oscilloscope (Both SDA and SCL line stay high). I think that the HLF PT2258 is fake, because I soon I plug an audio source, I get a sound output, but no attenuation!
Do you think that this brand is legit ? Do you have any previous experience with this brand?
Thanks in advance