KC868A-4 RF433MHz decoding.

[franco.demei@gmail.com]

you can test with a arduino recevie demo code whether can print the key code. (my means ONLY have receive function in code, and use press your remote's button send RF signal)
if it's ok, maybe you can check the RC SWITCH arduino library.

The above code is  the arduino receiver demo code . At the power on print "begin test" Then if I press the remote butto doesn't print anything :I made test with some differentes remote control, nothing appen. It look like the ESP32 doesn't read the IO19. I suspect it defective