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

const int buttonPin = D1;  //b
int buttonState = 0; //b


typedef struct struct_message {
  char message[32];
} struct_message;

struct_message myData;

uint8_t broadcastAddress[] = {0x34, 0x98, 0x7a, 0xb5, 0xf1, 0xa0}; // Replace with the MAC address of the ESP32-CAM

void onSent(const uint8_t *mac_addr, esp_now_send_status_t status) {
  Serial.print("\r\nLast Packet Send Status: ");
  Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Delivery Success" : "Delivery Fail");
}

void setup() {

  Serial.begin(115200);

  WiFi.mode(WIFI_STA);
  Serial.print("Sender MAC Address: ");
  Serial.println(WiFi.macAddress());

  if (esp_now_init() != ESP_OK) {
    Serial.println("Error initializing ESP-NOW");
    return;
  }

  esp_now_register_send_cb(onSent);

  esp_now_peer_info_t peerInfo;
  memcpy(peerInfo.peer_addr, broadcastAddress, 6);
  peerInfo.channel = 0;
  peerInfo.encrypt = false;

  if (esp_now_add_peer(&peerInfo) != ESP_OK) {
    Serial.println("Failed to add peer");
    return;
  }
}

void loop() {

  buttonState = digitalRead(buttonPin); //b
  if (buttonState == HIGH) { //b
  strcpy(myData.message, "Hello CAM");

  esp_err_t result = esp_now_send(broadcastAddress, (uint8_t *) &myData, sizeof(myData));

  if (result == ESP_OK) {
    Serial.println("Sent with success");
  } else {
    Serial.println("Error sending the data");
  }

  delay(2000); // Send the message every 2 seconds
}
}