#include <esp_now.h>
#include <WiFi.h>

uint8_t brcAddr[] = {0x9c, 0xAA, 0xB5, 0x84, 0xFB, 0x90};
esp_now_peer_info_t peerInfo;

void onDataRecv(const uint8_t * mac, const uint8_t * data, int len){
  Serial.print("Msg received: ");
  char rcvStr[len];
  memcpy(rcvStr, data, len);
  Serial.println(String(rcvStr));
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);

  esp_now_init();
  esp_now_register_recv_cb(onDataRecv);
  memcpy(peerInfo.peer_addr, brcAddr, 6);
  peerInfo.channel = 0;
  esp_now_add_peer(&peerInfo);
}

void loop() {
  String message = "Hello";
  esp_now_send(brcAddr, (uint8_t*)message.c_str(), message.length() + 1);
  delay(2000);
}