WakeUp from Deep Sleep GPIO2 and SMTP

jimbrown-net
Posts: 5
Joined: Sun Jan 28, 2024 6:21 pm

WakeUp from Deep Sleep GPIO2 and SMTP

Postby jimbrown-net » Sun Jan 28, 2024 7:21 pm

I am trying to create a ESP32 SMTP eMail when GPIO2 is pushed. Using these two examples: SMTP: : ESP32 Send Emails using SMTP Server: ... Tutorials and Deep Sleep: ESP32 External Wake Up from Deep Sleep ... Tutorials

I have two Issues, first on ESP32 boot an SMTP eMail I only want SMTP on GPIO2 is pushed. Second I get an error on GPIO2 after second push. Error: Error, Status Code: 554, Error Code: -109, Reason: send body failed

Code: Select all

#include <Arduino.h>
#if defined(ESP32)
  #include <WiFi.h>
#elif defined(ESP8266)
  #include <ESP8266WiFi.h>
#endif
#include <ESP_Mail_Client.h>

#define WIFI_SSID "REPLACE_WITH_YOUR_SSID"
#define WIFI_PASSWORD "REPLACE_WITH_YOUR_PASSWORD"

/** The smtp host name e.g. smtp.gmail.com for GMail or smtp.office365.com for Outlook or smtp.mail.yahoo.com */
#define SMTP_HOST "smtp.mail.com"
#define SMTP_PORT 587

/* The sign in credentials */
#define AUTHOR_EMAIL "YOUR_EMAIL@XXXX.com"
#define AUTHOR_PASSWORD "YOUR_EMAIL_APP_PASS"

/* Recipient's email*/
#define RECIPIENT_EMAIL "RECIPIENTE_EMAIL@XXXX.com"

/* Declare the global used SMTPSession object for SMTP transport */
SMTPSession smtp;

/* Callback function to get the Email sending status */
void smtpCallback(SMTP_Status status);


RTC_DATA_ATTR int bootCount = 0;

/*
Method to print the reason by which ESP32
has been awaken from sleep
*/
void print_wakeup_reason(){
  esp_sleep_wakeup_cause_t wakeup_reason;

  wakeup_reason = esp_sleep_get_wakeup_cause();

  switch(wakeup_reason)
  {
    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
  }
}

void setup(){
  Serial.begin(115200);
  Serial.println();
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED){
    Serial.print(".");
  delay(1000); //Take some time to open up the Serial Monitor

  //Increment boot number and print it every reboot
  ++bootCount;
  Serial.println("Boot number: " + String(bootCount));

  //Print the wakeup reason for ESP32
  print_wakeup_reason();

  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();

  /*  Set the network reconnection option */
  MailClient.networkReconnect(true);

  /** Enable the debug via Serial port
   * 0 for no debugging
   * 1 for basic level debugging
   *
   * Debug port can be changed via ESP_MAIL_DEFAULT_DEBUG_PORT in ESP_Mail_FS.h
   */
  smtp.debug(1);

  /* Set the callback function to get the sending results */
  smtp.callback(smtpCallback);

  /* Declare the Session_Config for user defined session credentials */
  Session_Config config;

  /* Set the session config */
  config.server.host_name = SMTP_HOST;
  config.server.port = SMTP_PORT;
  config.login.email = AUTHOR_EMAIL;
  config.login.password = AUTHOR_PASSWORD;
  config.login.user_domain = "";

  /*
  Set the NTP config time
  For times east of the Prime Meridian use 0-12
  For times west of the Prime Meridian add 12 to the offset.
  Ex. American/Denver GMT would be -6. 6 + 12 = 18
  See https://en.wikipedia.org/wiki/Time_zone for a list of the GMT/UTC timezone offsets
  */
  config.time.ntp_server = F("pool.ntp.org,time.nist.gov");
  config.time.gmt_offset = -6;
  config.time.day_light_offset = 0;

  /* Declare the message class */
  SMTP_Message message;

  /* Set the message headers */
  message.sender.name = F("ESP");
  message.sender.email = AUTHOR_EMAIL;
  message.subject = F("ESP Test Email");
  message.addRecipient(F("SMTP"), RECIPIENT_EMAIL);
    
  /*Send HTML message*/
  /*String htmlMsg = "<div style=\"color:#2f4468;\"><h1>Hello World!</h1><p>- Sent from ESP board</p></div>";
  message.html.content = htmlMsg.c_str();
  message.html.content = htmlMsg.c_str();
  message.text.charSet = "us-ascii";
  message.html.transfer_encoding = Content_Transfer_Encoding::enc_7bit;*/

   
  //Send raw text message
  String textMsg = "Hello World! - Sent from ESP board";
  message.text.content = textMsg.c_str();
  message.text.charSet = "us-ascii";
  message.text.transfer_encoding = Content_Transfer_Encoding::enc_7bit;
  
  message.priority = esp_mail_smtp_priority::esp_mail_smtp_priority_low;
  message.response.notify = esp_mail_smtp_notify_success | esp_mail_smtp_notify_failure | esp_mail_smtp_notify_delay;


  /* Connect to the server */
  if (!smtp.connect(&config)){
    ESP_MAIL_PRINTF("Connection error, Status Code: %d, Error Code: %d, Reason: %s", smtp.statusCode(), smtp.errorCode(), smtp.errorReason().c_str());
    return;
  }

  if (!smtp.isLoggedIn()){
    Serial.println("\nNot yet logged in.");
  }
  else{
    if (smtp.isAuthenticated())
      Serial.println("\nSuccessfully logged in.");
    else
      Serial.println("\nConnected with no Auth.");
  }

  /* Start sending Email and close the session */
  if (!MailClient.sendMail(&smtp, &message))
    ESP_MAIL_PRINTF("Error, Status Code: %d, Error Code: %d, Reason: %s", smtp.statusCode(), smtp.errorCode(), smtp.errorReason().c_str());
  /*
  First we configure the wake up source
  We set our ESP32 to wake up for an external trigger.
  There are two types for ESP32, ext0 and ext1 .
  ext0 uses RTC_IO to wakeup thus requires RTC peripherals
  to be on while ext1 uses RTC Controller so doesnt need
  peripherals to be powered on.
  Note that using internal pullups/pulldowns also requires
  RTC peripherals to be turned on.
  */
  esp_sleep_enable_ext0_wakeup(GPIO_NUM_2,1); //1 = High, 0 = Low

  //If you were to use ext1, you would use it like
  //esp_sleep_enable_ext1_wakeup(BUTTON_PIN_BITMASK,ESP_EXT1_WAKEUP_ANY_HIGH);

  //Go to sleep now
  Serial.println("Going to sleep now");
  delay(1000);

  esp_deep_sleep_start();
  Serial.println("This will never be printed");
}

void loop(){
}

/* Callback function to get the Email sending status */
void smtpCallback(SMTP_Status status){
  /* Print the current status */
  Serial.println(status.info());

  /* Print the sending result */
  if (status.success()){
    // ESP_MAIL_PRINTF used in the examples is for format printing via debug Serial port
    // that works for all supported Arduino platform SDKs e.g. AVR, SAMD, ESP32 and ESP8266.
    // In ESP8266 and ESP32, you can use Serial.printf directly.

    Serial.println("----------------");
    ESP_MAIL_PRINTF("Message sent success: %d\n", status.completedCount());
    ESP_MAIL_PRINTF("Message sent failed: %d\n", status.failedCount());
    Serial.println("----------------\n");

    for (size_t i = 0; i < smtp.sendingResult.size(); i++)
    {
      /* Get the result item */
      SMTP_Result result = smtp.sendingResult.getItem(i);

      // In case, ESP32, ESP8266 and SAMD device, the timestamp get from result.timestamp should be valid if
      // your device time was synched with NTP server.
      // Other devices may show invalid timestamp as the device time was not set i.e. it will show Jan 1, 1970.
      // You can call smtp.setSystemTime(xxx) to set device time manually. Where xxx is timestamp (seconds since Jan 1, 1970)
      
      ESP_MAIL_PRINTF("Message No: %d\n", i + 1);
      ESP_MAIL_PRINTF("Status: %s\n", result.completed ? "success" : "failed");
      ESP_MAIL_PRINTF("Date/Time: %s\n", MailClient.Time.getDateTimeString(result.timestamp, "%B %d, %Y %H:%M:%S").c_str());
      ESP_MAIL_PRINTF("Recipient: %s\n", result.recipients.c_str());
      ESP_MAIL_PRINTF("Subject: %s\n", result.subject.c_str());
    }
    Serial.println("----------------\n");

    // You need to clear sending result as the memory usage will grow up.
    smtp.sendingResult.clear();
  }
}

lbernstone
Posts: 829
Joined: Mon Jul 22, 2019 3:20 pm

Re: WakeUp from Deep Sleep GPIO2 and SMTP

Postby lbernstone » Mon Jan 29, 2024 9:07 am

1) Make a function for your SMTP send. This makes your code readable, and helps with logic. Call that from setup with `if (esp_sleep_get_wakeup_cause() == ESP_SLEEP_WAKEUP_EXT0) smtpSend();`
2) Call WiFi.disconnect(true) before you go to sleep. Check that WiFi is up and connected before you try to send the email.

jimbrown-net
Posts: 5
Joined: Sun Jan 28, 2024 6:21 pm

Re: WakeUp from Deep Sleep GPIO2 and SMTP

Postby jimbrown-net » Mon Jan 29, 2024 1:44 pm

lbernstone wrote:
Mon Jan 29, 2024 9:07 am
1) Make a function for your SMTP send. This makes your code readable, and helps with logic. Call that from setup with `if (esp_sleep_get_wakeup_cause() == ESP_SLEEP_WAKEUP_EXT0) smtpSend();`
2) Call WiFi.disconnect(true) before you go to sleep. Check that WiFi is up and connected before you try to send the email.
Thank you, unsure where exactly to put your suggestions.

lbernstone
Posts: 829
Joined: Mon Jul 22, 2019 3:20 pm

Re: WakeUp from Deep Sleep GPIO2 and SMTP

Postby lbernstone » Tue Jan 30, 2024 12:46 am

I give advice, not code. Ask ChatGPT if you want a bot to write it for you.

jimbrown-net
Posts: 5
Joined: Sun Jan 28, 2024 6:21 pm

Re: WakeUp from Deep Sleep GPIO2 and SMTP

Postby jimbrown-net » Tue Jan 30, 2024 12:54 am

lbernstone wrote:
Tue Jan 30, 2024 12:46 am
I give advice, not code. Ask ChatGPT if you want a bot to write it for you.
Wow, thanks!!!

jimbrown-net
Posts: 5
Joined: Sun Jan 28, 2024 6:21 pm

Re: WakeUp from Deep Sleep GPIO2 and SMTP

Postby jimbrown-net » Mon Feb 05, 2024 2:50 pm

Looks like commenting out time server seems to fix the second GPIO2 push button issue. Error: Error, Status Code: 554, Error Code: -109, Reason: send body failed. I do get a SMTP 406 Error, but email is still sent. also the below code fixed SMTP Send eMail on Boot.

Full Code:

Code: Select all

#include <Arduino.h>
#if defined(ESP32)
  #include <WiFi.h>
#elif defined(ESP8266)
  #include <ESP8266WiFi.h>
#endif
#include <ESP_Mail_Client.h>

#define WIFI_SSID  "REPLACE_WITH_YOUR_SSID"
#define WIFI_PASSWORD "REPLACE_WITH_YOUR_PASSWORD"

#define SMTP_HOST "smtp.mail.com"
#define SMTP_PORT 587

/* The sign in credentials */
#define AUTHOR_EMAIL “YOUR_EMAIL@XXXX.com”
#define AUTHOR_PASSWORD "YOUR_EMAIL_APP_PASS"

/* Recipient's email*/
#define RECIPIENT_EMAIL “RECIPIENTE_EMAIL@XXXX.com”


SMTPSession smtp;

void smtpCallback(SMTP_Status status);

RTC_DATA_ATTR int bootCount = 0;

void print_wakeup_reason() {
  esp_sleep_wakeup_cause_t wakeup_reason;
  wakeup_reason = esp_sleep_get_wakeup_cause();
  switch(wakeup_reason) {
    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
  }
}

void sendEmail() {
  Serial.println("Sending Email...");
  smtp.debug(1);
  smtp.callback(smtpCallback);

  Session_Config config;
  config.server.host_name = SMTP_HOST;
  config.server.port = SMTP_PORT;
  config.login.email = AUTHOR_EMAIL;
  config.login.password = AUTHOR_PASSWORD;
  config.login.user_domain = "";
  //config.time.ntp_server = F("pool.ntp.org,time.nist.gov");
  //config.time.gmt_offset = -6;
  //config.time.day_light_offset = 0;

  SMTP_Message message;
  message.sender.name = F("ESP");
  message.sender.email = AUTHOR_EMAIL;
  message.subject = F("ESP Test Email");
  message.addRecipient(F("SMTP"), RECIPIENT_EMAIL);

  String textMsg = "Hello World! - Sent from ESP board";
  message.text.content = textMsg.c_str();
  message.text.charSet = "us-ascii";
  message.text.transfer_encoding = Content_Transfer_Encoding::enc_7bit;
  message.priority = esp_mail_smtp_priority::esp_mail_smtp_priority_low;
  message.response.notify = esp_mail_smtp_notify_success | esp_mail_smtp_notify_failure | esp_mail_smtp_notify_delay;

  if (!smtp.connect(&config)) {
    Serial.println("Connection error");
    return;
  }

  if (!MailClient.sendMail(&smtp, &message)) {
    Serial.println("Error sending email");
  }
}

void setup() {
  Serial.begin(115200);
  Serial.println();
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting to Wi-Fi");

  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(1000);
  }

  Serial.println("\nConnected to Wi-Fi.");

  print_wakeup_reason();

  // Check if GPIO2 is HIGH (button pressed) before sending email
  if (digitalRead(2) == HIGH) {
    sendEmail();
  }

  // Enable external wake-up on GPIO2, high level trigger
  esp_sleep_enable_ext0_wakeup(GPIO_NUM_2, 1);

  Serial.println("Going to sleep now");
  esp_deep_sleep_start();
}

void loop() {
  // Not used due to deep sleep
}

void smtpCallback(SMTP_Status status) {
  Serial.println(status.info());

  if (status.success()) {
    Serial.println("Email sent successfully");
  } else {
    Serial.print("Error Code: ");
    Serial.println(smtp.errorCode());
  }
}

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