I am working on an attendance system project using Raspberry Pi Pico W, EM - 18 reader and MicroPython.
Not sure of the tag type here, but I guess it is 125KHz tag. More, my card is keeping '29714856' actual value. But when read using EM - 18 I found it to be '0113A70CA811' encoded value.
I tried to decode using hex, binary to bring back the actual value, but didn't succeed.