Search found 4 matches

by szwitlink
Mon Dec 02, 2019 3:06 am
Forum: ESP-IDF 中文讨论版
Topic: 多天线(multiple antenna)例程
Replies: 0
Views: 2553

多天线(multiple antenna)例程

大家好!

ESP32有没有多天线例程?谢谢!
by szwitlink
Mon Dec 02, 2019 3:03 am
Forum: ESP-IDF
Topic: How to use external FEM with ESP32
Replies: 3
Views: 4618

Re: How to use external FEM with ESP32

Hi, We try to use esp_wifi_set_ant_gpio and esp_wifi_set_ant to control FEM. It seems ESP32 always uses ANT0. It means it does not activate ANT1 even under Tx mode. Is there any example on multiple antennas? Would you help review the code below? void app_setup_gpio(void) { gpio_config_t io_conf; //d...
by szwitlink
Thu Oct 24, 2019 1:57 pm
Forum: ESP-IDF
Topic: How to use external FEM with ESP32
Replies: 3
Views: 4618

Re: How to use external FEM with ESP32

https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/wifi.html#wi-fi-multiple-antennas Thanks a lot! But it seems this article explains how to use multiple antennas for diversity. But for external FEM, we need some way to enable/disable PA in Tx/Rx state. We also need some way to bypass...
by szwitlink
Thu Oct 24, 2019 5:22 am
Forum: ESP-IDF
Topic: How to use external FEM with ESP32
Replies: 3
Views: 4618

How to use external FEM with ESP32

Hi everyone, We are considering use ESP32 in long range Wifi application. We need to connect ESP32 with an external FEM (including PA/LNA/RF-switch). To control the PA and RF-switch, we need to connect some GPIOs of ESP32 with FEM, it is easy. But the software must enable/disable PA before/after tra...