Thanks for your answer, so only the Xiao ESP32 C3 needs the attenuator? Not these others?
XIAO SAMD21
XIAO RP2040
XIAO nRF52840
I am using a voltage splitter to limit the voltage to 3.3v to the Xiao esp32 C3 currently I am working only with the Xiao ESP32 C3, but I will also work with the others.