How to switch between PCB and IPEX antenna on an ESP32-S ?

[salocinx]

Hi.

I am currently designing a small ESP32 expansion board for the Crazyflie quadcopter. I already have written the driver code on the SMT32 and the ESP32 (UART <-> TCP/IP bridge) which is working fine on my prototype.

I decided to use the ESP32-S, since it provides a PCB-antenna and an IPEX-antenna. I am wondering what I need from a hardware perspective to be able to switch between the PCB antenna and the IPEX antenna?

Thanks in advance!

[WiFive]

There is a jumper (tiny 0 ohm resistor) which has to be connected to either the PCB antenna or the ipex connector. You can see in this photo it is connected to the ipex, which means the pcb antenna is not connected. So you need either soldering tweezers or a hot air gun and steady hands.