WhyCan Forum(哇酷开发者社区)

1.使用AP模式，判断是否有设备通过wifi接入
void wifi_event_handler(void* arg, esp_event_base_t event_base,
                                    int32_t event_id, void* event_data)
{
    if (event_id == WIFI_EVENT_AP_STACONNECTED) {
        wifi_event_ap_staconnected_t* event = (wifi_event_ap_staconnected_t*) event_data;
        ESP_LOGI( TAGb,"station "MACSTR" join, AID=%d",
                 MAC2STR(event->mac), event->aid);
                 Tcpcreate();
         
    } else if (event_id == WIFI_EVENT_AP_STADISCONNECTED) {
        wifi_event_ap_stadisconnected_t* event = (wifi_event_ap_stadisconnected_t*) event_data;
        ESP_LOGI(TAGb,"station "MACSTR" leave, AID=%d",
                 MAC2STR(event->mac), event->aid);
               
    }
}

2.向nRF24L01写指令时，我参考stm32的代码，根据stm32的代码，将SPI设置为每发送一个字节，同时读取一个字节。（HAL库是可以直接调用这个函数，esp32没有）

uint8_t SPIx_ReadWriteByte(uint8_t data)
{
    uint8_t data_out = data;
    uint8_t data_in = 0;
    uint8_t *p=&data_in;
    t.length = 8;
    t.tx_buffer = &data_out;
    t.rx_buffer = &data_in;
    spi_device_polling_transmit(spi, &t);
    p=t.rx_buffer;
    return *p;
}

ESP32源码给这 ，写的挺乱的

https://whycan.com/files/members/9992/main.zip