Just got my USB2.0 TTL UART 6pin serial CP2102 adapter.
So not to brick the AP I want to have confirmed the correct wiring/connection.
AP 121U <-> USB UART
VDD -----> 3.3V
RX -----> RXD
TX -----> TXD
GND -----> GND
Is this connection correct?
Do I need to connect VDD with 3.3V or can I leave it?
It seems that my board is a newer revision. The capacitor near to the GPIO pins isn't there like on the picture from Mr-Protocol.
/edit: I just realized they made a wrong delivery! I got a AP121 without USB.
So it's clear why the capacitors are missing. So I have to sent it back and wait for the right AP121U with usb-port. :( /edit
But I think the GPIO Pins are still the same.
I would be thankful for a short feedback.