I uploaded the ESPNow Basic Master arduino sketch to a ESP32 S2 (S2 Mini board on ebay) and it works, but if I connect the rx pin (GPIO18) for a serial signal coming from an arduino, the wireless communication doesn't work. "No WiFi devices in AP Mode found Slave Not Found, trying again." However if...

I was able to solve a similar error based on the esp-now example project by adding this in main : // Initialize NVS esp_err_t ret = nvs_flash_init(); if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) { ESP_ERROR_CHECK( nvs_flash_erase() ); ret = nvs_flash_init(); } ESP_ER...

I have the same problem

There's several libraries on Arduino, TFT_eSPI, MCUFRIEND, GFX, etc.
I haven't found a LCD/TFT display, parallel or serial, that could not work with esp32.