On modules like for the ESP8266 and ESP32 platforms the PCB antennas ... Ultimately, the best PCB antenna design is one where there is no nearby copper fill, and there are no traces running ...

On modules like for the ESP8266 and ESP32 platforms the PCB antennas ... Ultimately, the best PCB antenna design is one where there is no nearby copper fill, and there are no traces running ...

Adafruit has announced the availability of the ESP32-S2 WROOM Module with PCB Antenna equipped with 4 MB flash and available to purchase priced at just $3.25. The new module is the single-core 240 ...