如何使用ESPNOW在ESP之间发送MAC地址？

我们正在进行一个需要 ESP8266 之间通信的项目。我们使用 ESPNOW 在我们的 ESP 之间发送 MAC 地址。我们的目标是分享这一点，并为其他人提供一种在 ESP8266 上使用 ESPNOW 的简单方法。我们期待阅读您对此主题的评论。
代码：全选/*
Super Simple Minimalist Easy ESPNOW

This is an easy way to communicate between ESP8266s.

*no error checking
*no encryption
*broadcast only
*unlimited number of transceivers
*Six bits+Five bytes of sender id and/or payload(two low order bits of first byte are reserved)
*250 bytes of optional payload

Aaron Chand
Tim Hayward

License: MIT License
*/

#include
#include

uint8_t broadcastAddress[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};

/* Optional Custom MAC Address
uint8_t newMACAddress[] = {0x44, 0x44, 0x44, 0x44, 0x44, 0x44};
*/

bool OkayToSend; //Sending is Complete

typedef struct struct_message {
  //structure example to send data //must match the receiver structure
char a[250];
} struct_message;

struct_message myData; // create a data structure called myData

char s [32];

void OnDataRecv(uint8_t * mac, uint8_t *incomingData, uint8_t len) { //receive data
  memcpy(&myData, incomingData, sizeof(myData));
  char macStr[18];
    Serial.print("Data received");
    snprintf(macStr, sizeof(macStr), "%02x:%02x:%02x:%02x:%02x:%02x",
    mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
    Serial.print(macStr);
  Serial.print("\t");
   Serial.println(myData.a);
}
void OnDataSent(uint8_t *mac_addr, uint8_t sendStatus) {
  OkayToSend = true;
}

void setup() {
  Serial.begin(115200); //Init Serial Monitor

  Serial.println("Super Simple Minimalist Easy ESPNOW");

  WiFi.mode(WIFI_STA); //Set Device as a WiFi Station
  WiFi.disconnect();

  /* Uncomment to Set Custom MAC Address
  wifi_set_macaddr(STATION_IF, &newMACAddress[0]);
  */

  esp_now_init(); //init ESPNOW

  esp_now_set_self_role(ESP_NOW_ROLE_COMBO);

  esp_now_register_send_cb(OnDataSent);
  esp_now_register_recv_cb(OnDataRecv);

  esp_now_add_peer(broadcastAddress, ESP_NOW_ROLE_COMBO, 1, NULL, 0); //add peer
}

void loop() {

  strcpy(myData.a,"THIS IS THE PAYLOAD"); //set values to send

  while (!OkayToSend){}

  OkayToSend = false;

  esp_now_send(0, (uint8_t*) &myData, sizeof(myData)); // send a message
    delay(100);
}