Did you solder it the right way around? Dot indicates the feeding point, so it should be towards the ESP32.

Of course. And I tried two different ceramic antennas ... but same...
I don't know why.

It seems not to work, infinite reset

I used to use an onboard PCB and everything worked fine, but when I tried using a ceramic antenna, things started to go south.
I can't connect to the sta or use wifi mesh.

Chip: esp32c3 FN4

I set gpio11 to switch the level once every second, but in the end I only got a voltage of about 3v3 to 3v0.

I think the code is ok because I changed 11 to 21 (21 is connected to an led) and everything works fine.

BTW: On the chip, gpio11 is the VDD_SPI identifier.

Code:

```c ...

gpio_config_t is not initialised

Also you config(21) and then set_level(11)

No, I just posted the wrong code, and I actually control 21.
I can see that the voltage jumps at 3 to 3.3v, and if I don't control 21, he won't jump.

Chip: esp32c3 FN4

I set gpio21 to switch the level once every second, but in the end I only got a voltage of about 3v3 to 3v0.

I think the code is ok because I changed 21 to 11 (11 is connected to an led) and everything works fine.

Code:

```c
gpio_config_t cfg;
cfg.mode = GPIO_MODE_OUTPUT ...

Chip: esp32c3 FN4

I set gpio21 to switch the level once every second, but in the end I only got a voltage of about 3v3 to 3v0.

I think the code is ok because I changed 21 to 11 (11 is connected to an led) and everything works fine.

Code:

```c
gpio_config_t cfg;
cfg.mode = GPIO_MODE_OUTPUT ...

Since I have enabled the dynamic allocation network,how should I know that the root node has been switched so that I can do some processing for the old root node and make the new root node take some actions. Which event can the old root node use to know that it is about to be switched? Through which ...

The error code 4008 corresponds to ESP_ERR_MESH_ARGUMENT, indicating that one or more of the arguments passed to esp_mesh_send are invalid.

Check the mesh_data_t Structure: Ensure that the data.data is not NULL and that data.size is correctly set.
The mesh network should be correctly set up and ...

In the ESP-MESH network, devices can communicate with each other by simply specifying the destination address when using the esp_mesh_send function.
The ESP-MESH library handles the routing automatically. Device C or D sends the message to device B. Device B forwards the message to device A ...