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

uint8_t broadcastAddress[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; // Broadcast address for all devices

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

message myMessage;

void setup() {
    Serial.begin(115200);
    WiFi.mode(WIFI_STA); // Set device as a Wi-Fi Station
    Serial.println("ESP-NOW Sender");

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

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

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

    // Set up the message to send
    strcpy(myMessage.text, "Hello, World!");
}

void loop() {
    esp_err_t result = esp_now_send(broadcastAddress, (uint8_t *)&myMessage, sizeof(myMessage));

    if (result == ESP_OK) {
        Serial.println("Message Sent: Hello, World!");
    } else {
        Serial.println("Error sending the message");
    }

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