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

#define NODE_3 3

// Node 3 MAC
uint8_t macNode3[] = {0x58, 0xE6, 0xC5, 0x19, 0xB9, 0xBC};

typedef struct {
  int targetID;
  int command;
} Message;

Message msg;

void setup() {
  Serial.begin(115200);

  WiFi.mode(WIFI_STA);

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

  esp_now_peer_info_t peerInfo = {};
  memcpy(peerInfo.peer_addr, macNode3, 6);
  peerInfo.channel = 0;
  peerInfo.encrypt = false;

  if (esp_now_add_peer(&peerInfo) != ESP_OK) {
    Serial.println("Peer add failed");
    return;
  }

  Serial.println("Node 1 (Master) ready");
}

void loop() {
  msg.targetID = NODE_3;
  msg.command = 1;

  Serial.println("Sending...");

  esp_err_t result = esp_now_send(macNode3, (uint8_t *)&msg, sizeof(msg));

  if (result == ESP_OK) {
    Serial.println("Send success");
  } else {
    Serial.println("Send fail");
  }

  delay(2000);
}