【プログラム】ESP-nowからのGMAIL

 #include <Arduino.h>

#include <esp_now.h>

#include <WiFi.h>

#include "esp32-hal-log.h"

#include <freertos/FreeRTOS.h>    /* FreeRTOSを用いるためのヘッダファイル */

#include <freertos/task.h>

#include "Mailer.h"

#include <esp_pm.h>

const char* wifi_ssid = "**********"; //WiFiのSSID

const char* wifi_pass = "**********"; //WiFiのパスワード

const char* smtp_username = "izumo.lab"; //アカウント名

const char* smtp_password = "bruuqvsbfnglgbcc"; //Mail向けのアプリパスワード

const char* smtp_from_address = "izumo.lab@gmail.com"; //送信元のアドレス

const int smtp_port = 465;

const char* smtp_hostname = "smtp.gmail.com";

const char* to_address = "izumo.papa@gmail.com"; //メッセージを送信するアドレス１

const char* to_address2 = "izumo.mama@gmail.com"; //メッセージを送信するアドレス２

const char* subject = "Door status From ESP32(TEST)"; //メールの件名

const char* content = "Hello, this is ESP32."; //メールの内容

const int LED_RED = 5;

const int LED_GREEN = 19;

bool ledState = false;

bool received = false;

uint8_t doorInfo = 0; //0:unknown 1:open&close 2:open 3:close

 uint8_t slaveAddress[] = { 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }; // 送信側のMACアドレスに書き換えます

 void sleep_ms(uint32_t ms) {

    vTaskDelay(ms / portTICK_PERIOD_MS);

  }

 

  void reset_wifi() {

    WiFi.persistent(false);

    WiFi.disconnect();

    WiFi.mode(WIFI_OFF);

    delay(10);

  }

  Mailer mail(smtp_username, smtp_password, smtp_from_address, smtp_port, smtp_hostname);

  void LED_blink(uint32_t ms){

 

    digitalWrite(LED_RED, HIGH);

    sleep_ms(ms);

    digitalWrite(LED_RED, LOW);

   

  }

  void mailSend(const char* msg){

    log_i("Hello, this is ESP32.");

 

    log_i("Connecting to ", wifi_ssid);

    reset_wifi();

    WiFi.mode(WIFI_STA);

    WiFi.begin(wifi_ssid, wifi_pass);

    while (WiFi.status() != WL_CONNECTED) {

      log_i("wait...");

      sleep_ms(1000);

    }

    log_i("WiFi connected");

    log_i("IP Address: %s", WiFi.localIP().toString().c_str());

 

    mail.send(to_address,to_address2, subject, msg);

 

     //WiFiを切断

    WiFi.mode(WIFI_OFF);

 

    LED_blink(50);

  }

  void sendMail(int doorState){

    if(doorState==LOW){

      mailSend("DoorLock opened.TEST");

      //esp_sleep_enable_ext0_wakeup(GPIO_NUM_15, HIGH);

    }else{

      mailSend("DoorLock closed.TEST");

      //esp_sleep_enable_ext0_wakeup(GPIO_NUM_15, LOW);

    }

  }

void flashLed(int pin) {

    digitalWrite(pin, HIGH);

    delay(500);

    digitalWrite(pin, LOW);

}

void onSend(const uint8_t* mac_addr, esp_now_send_status_t status) {

    char macStr[18];

    snprintf(macStr, sizeof(macStr), "%02X:%02X:%02X:%02X:%02X:%02X",

        mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);

    Serial.println(macStr);

    Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Success" : "Failed");

}

void onReceive(const uint8_t* mac_addr, const uint8_t* data, int data_len) {

    char macStr[18];

    snprintf(macStr, sizeof(macStr), "%02X:%02X:%02X:%02X:%02X:%02X",

        mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);

    Serial.println();

    Serial.printf("Last Packet Recv from: %s\n", macStr);

    Serial.printf("Last Packet Recv Data(%d): ", data_len);

    for (int i = 0; i < data_len; i++) {

        Serial.print(data[i]);

        Serial.print(" ");

        if (data[i] == 222) {

            flashLed(LED_RED);

            received = true;

            doorInfo = 1; //1:open&close

        }

    }

}

void espNow_start() {

  WiFi.mode(WIFI_STA);

  WiFi.disconnect();

  if (esp_now_init() == ESP_OK) {

        Serial.println("ESP-Now Init Success");

    }

    flashLed(LED_RED);

    esp_now_peer_info_t peerInfo = {}; //ココ重要

    memcpy(peerInfo.peer_addr, slaveAddress, 6);

    peerInfo.channel = 0;

    peerInfo.encrypt = false;

 

    if (esp_now_add_peer(&peerInfo) != ESP_OK) {

        Serial.println("Failed to add peer");

        return;

    }

    esp_now_register_send_cb(onSend);

    esp_now_register_recv_cb(onReceive);

}

void setup() {

    Serial.begin(115200);

    pinMode(LED_RED, OUTPUT);

    pinMode(LED_GREEN, OUTPUT);

    flashLed(LED_RED);

    flashLed(LED_GREEN);

    Serial.println(WiFi.macAddress()); // このアドレスを送信側へ登録します

    espNow_start();

  }

void loop() {

  // put your main code here, to run repeatedly:

  uint8_t data[2] = { 33,55}; // 送信データ

  if(received){

    delay(100);

    received = false;

    esp_err_t result = esp_now_send(slaveAddress, data, sizeof(data));

    if (result == ESP_OK) {

        Serial.println("Sent with success");

    }

    else {

        Serial.println("Error sending the data");

    }

    digitalWrite(LED_GREEN, HIGH);

    sendMail(doorInfo);

    digitalWrite(LED_GREEN, LOW);

    doorInfo = 0;

    espNow_start();

  }

}