UHF RFID Unit crashed M5

josephleeks

M5Stack (FIRE) cannot start normally when UHF RFID Unit is connected to port C. It reboots a few times and then hang.

What could be the cause?

felmue

according to the description of the M5GO Base Port the pins used for port C on M5Stack Fire are GPIO16 and GPIO17. Unfortunately those pins are already used internally for PSRAM. In other words, if I am not mistaken, port C on M5Stack Fire cannot be used.

Thanks
Felix