Send Message To Whatsapp Online – In this tutorial you will learn how to send messages to your WhatsApp account using ESP32. This can be useful for receiving notifications from the ESP32 with sensor readings, alerting notifications when sensor readings are higher or lower than a certain threshold, when motion is detected, and many other applications. We will program the ESP32 using the Arduino IDE and to send the messages we will use a free API called CallMeBot.
“WhatsApp Messenger, or simply WhatsApp, is an American freeware, cross-platform centralized instant messaging and voice over IP service owned by Meta Platforms.” It allows you to send messages using your phone’s internet connection, so you can avoid SMS charges.
Send Message To Whatsapp Online
WhatsApp is free and available for Android and iOS. Install WhatsApp on your smartphone if you haven’t already.
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To send messages to your WhatsApp account using ESP32, we will use a free API service called CallMeBot service. You can learn more about CallMeBot at the following link:
It basically acts as a gateway that allows you to send messages to yourself. This can be useful for sending alarm messages from the ESP32.
Before you start using the API, you need to get the CallmeBot WhatsApp API key. Follow the instructions below (check this link for instructions on the official website).
Note: If you do not receive your API key after 2 minutes, please try again after 24 hours. WhatsApp messages from bots will contain the API key required to send messages through the API
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To send a message using the CallMeBot API, you need to make a POST request to the following URL (but using your information):
As we saw earlier, the message sent must be URL-encoded. URL encoding converts characters into a format that can be transmitted over the Internet. You can only send URLs over the Internet using the ASCII character set.
This will allow us to include characters like ç, ª, º, à, ü in our messages. You can learn more about URL encoding here.
You can encrypt the message yourself or use a library, which is much simpler. We will use the UrlEncode library which can be installed on your Arduino IDE.
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The following sample code will send a message to your WhatsApp account when the ESP32 first boots up. Here is a simple example to show you how to send a message. After understanding how it works, the idea is to incorporate it into your own projects.
Sending messages to WhatsApp using the CallMeBot API is very simple. You just need to make an HTTP POST request.
Enter your phone number and API key. The phone number must be in international format (including the + sign).
We create a function called sendMessage() which you can later call to send messages to WhatsApp. This function accepts as an argument the message you want to send.
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Inside the function, we prepare the URL for the request with your information, phone number, API key and message.
As we saw earlier, the message must be URL-encoded. We have included the UrlEncode library to do this. It contains a function called urlEncode() that encodes any message we pass as an argument (urlEncode(message)).
We can then send messages to WhatsApp by calling the sendMessage() function. In this case we send a Hello message from ESP32!
After entering your web credentials, phone number and API key, you can upload the code to your board.
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Once uploaded, open the Serial Monitor at 115200 baud and press the board’s RST button. It will successfully connect to your network and send a message to WhatsApp.
In this tutorial, you learned how to use the CallMeBot API with ESP32 to send messages to your WhatsApp account. This can be useful for sending regular sensor readings to your inbox, sending notifications when motion is detected, sending alert notifications when sensor readings are above or below a certain threshold, determination and many other applications.
Build Web Server projects with ESP32 and ESP8266 boards for output control and remote sensor monitoring. Learn about HTML, CSS, JavaScript and client-server communication protocols DOWNLOAD »
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Ways To To Send Whatsapp Messages Without Saving The Contact
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Fotos und Videos mit unserem Smartphone aufzunehme, gehört heutzaget zum Alltag, aber nicht alles, was wir teilen, muss auch durchweisung digital erhalten bleiben. Bei vielen Smartphones bedeutet die Aufnahme eines Fotos, dass is forever belegt in der Galerie Speicherplatz.
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Aus diem Grund führen wir heute Photos and Videos as Einmalansicht ein. Diese verschwinden aus dem Chat, wenn sie einmal geöffnet wurden. So haben Benutzer noch mehr Kontrolle über ihre Privatstie.
Vielleicht schickst du beisspielsweise ein Foto als Einmalansicht von Klamotten, die du gerade im Geschäft anprobierst, von einem spontanen Moment oder von etwas Vertraulichem wie einem WLAN-Passwort.
Wie alle personal Nachrichten, die du in WhatsApp sentest, sind auch Medien bei der Einmalansicht Ende-zu-Ende verschlüsselt, sossad WhatsApp sie nicht sehen kann. In addition, they are clearly marked with a new symbol for “einmal”.
Nothing to worry about, instead of “geöffnet” the change. So weißt du mmer genau, was im Chat zu dieem Seinkut passiert ist.
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Die Funktion ist ab dieser Woche für alle verfügbar und wir freuen uns schon auf dein Feedback zu dieer neuen Möglichkeit, private Medien zu senden, die nach einmaliger Ansicht wieder verschwinden. Sometimes, you come across a situation where you have to send someone a message on WhatsApp without saving their phone number. You might want to share your location with the courier or something to that effect, but you don’t want to save someone else’s mobile number. In such cases, these simple tricks can be useful. Yes, there are ways to send WhatsApp messages without saving numbers and we have listed them here.
For more tech news, product reviews, tech features and updates, keep reading or visit our Google News page.
You will be redirected to the WhatsApp chat and you can message the person without saving the number.
You just need to download and install the Easy Messages App from the Google Play Store. Open the app and enter the mobile number with the country code. Tap on ‘Start WhatsApp Chat’. This is an easy method to redirect whatsapp without saving number, but make sure to read the developer’s data and privacy policy before using it.
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That’s all. We hope you find this easy to follow. We will bring many such WhatsApp tips, tricks and tutorials.
About myself: Vasan is a tech geek and wordsmith, currently looking for a job as a news writer at . Read more
Tags: WhatsApp WhatsApp Online messages whatsapp chat whatsapp chat direct messaging whatsapp text without saving number send whatsapp messages online how to send whatsapp messages whatsapp messages without saving phone number whatsapp presents whatsapp tips Tips and WhatsApp trick: How to send a message without saving a number Today we will tell you a trick so you can send a message to anyone on WhatsApp without saving their number.
WhatsApp is constantly bringing new features to its users. If you want to send a message to someone on WhatsApp, you need to save the number. Today we are going to tell you a trick so that you can send a message to anyone on WhatsApp without saving their number.
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There are some third-party apps that allow you to send messages to WhatsApp without adding a contact, but these should not be used, as it may compromise your security and even cause your account to fail. Your WhatsApp account has been banned. Therefore, it is better for you to stay away from such apps and not risk the security of your smartphone.
This method works for both Android and iOS. You just need to follow a few simple steps in any browser and you are good to go.
Open the browser on your phone. You can now copy and paste this link http://wa.me/xxxxxxxxxx or this link — http://api.whatsapp.com/send?phone=xxxxxxxxxxxx into the address bar.
In the ‘xxxxxxxxx’ place you have to enter the phone number together with the country code, so if the number you want to text is +9199111111111 the link will become http://wa.me/9199111111111. Here, the first two digits (91) are the country code for India followed by the person’s mobile number.
Want To Send A Message To Yourself On Whatsapp? Here’s A Step By Step Guide
Next, you will see a WhatsApp website with the recipient’s phone number and a green Message button. Tap the green message button and you will be redirected to WhatsApp.
In other news, WhatsApp is said to be rolling out cross-device support for the Beta version soon. The feature has been discovered in the app, but it’s still not working, even for beta testers of the app.
WhatsApp head Will Cathcart and Facebook CEO Mark Zuckerberg officially announced that the feature is expected
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