Hi,

I ordered Waveshare ESP32-P4-Module-DEV-KIT in which ESP32-P4 extends its WIFI functionality by connecting to an ESP32-C6 module via SDIO (ESP32-C6 acts as a slave for ESP32-P4 as host).

Could you please advise (or share a piece of Arduino IDE code) how to program this combo to connect to and use WiFi?

For VSCode they say to add two components to make things done (https://www.waveshare.com/wiki/ESP32-P4-Module-DEV-KIT-StartPage#WIFI_Networking_Demo):

// In a WIFI project, add the following two components through the ESP-IDF component management tool
idf.py add-dependency "espressif/esp_wifi_remote"
idf.py add-dependency "espressif/esp_hosted"

PS. I am on ver. 3.3.0-Alpha1

Not easy. Needs custom board definition to specify the pins used for the C6. You can have a look at the one for our P4 board

Not easy. Needs custom board definition to specify the pins used for the C6. You can have a look at the one for our P4 board

Do you mean this definition in ...\Arduino15\packages\esp32\hardware\esp323円.3.0-alpha1\variants\esp32p4\pins_arduino.h ?

//WIFI - ESP32C6
#define BOARD_HAS_SDIO_ESP_HOSTED
#define BOARD_SDIO_ESP_HOSTED_CLK 18
#define BOARD_SDIO_ESP_HOSTED_CMD 19
#define BOARD_SDIO_ESP_HOSTED_D0 14
#define BOARD_SDIO_ESP_HOSTED_D1 15
#define BOARD_SDIO_ESP_HOSTED_D2 16
#define BOARD_SDIO_ESP_HOSTED_D3 17
#define BOARD_SDIO_ESP_HOSTED_RESET 54

No additional libraries are needed?

yes, but keep in mind this will be overwritten next time you install new core

The waveshare p4 nano board uses the same GPIOs to connect the C6 as the espressif p4 eval board. So the p4 nano board will work with the Arduino examples without any changes.

will be fixed in 3.3.1. In a mean time you can drop to 3.2.1

Now, I don't get an error, but I have nothing on the screen.
Could it be the driver problem?

This is the only change I have made:

#ifndef CURRENT_SCREEN
#define CURRENT_SCREEN SCREEN_7_DSI_TOUCH_A
#endif

Could it be I need to set a thing or two in addition?

Tried other examples.

GFX_ESPWiFiAnalzyer returns this:

Arduino_GFX Hello World example
sdio_mempool_create free:34099496 min-free:34099068 lfb-def:33030132 lfb-8bit:33030132

But nothing on the screen.

AsciiTable example uploads, but again, nothing on the screen.