Install the library by clicking on the “install” button.With over 700 million monthly active users, Telegram is one of the most popular messaging apps in the world. Search for “URLencode.” Scroll down to the URLencode library, which is written by Masayuki Sugahara. To install UrlEncode.h, navigate to Tools->Manage Libraries. The WiFi.h and HTTPClient.h are installed by default. This sketch uses the WiFi.h, HTTPClient.h, and UrlEncode.h libraries.

Next, you’ll need to install the required libraries on Arduino IDE. It contains three variables - an API key, a text message, and a mobile number. The link must be used to send messages to the given WhatsApp number. The API will return a link for the given mobile number containing an API key. Next, send this message to the Whatabot account: “I allow whatabot to send me messages.” You can also register your WhatsApp number on this link. The Whatabot contact number is +54 9 1123998026. To register your WhatsApp number with Whatabot API, create a Whatabot contact in your smartphone. To begin, register your WhatsaApp number or Telegram account with API via your smartphone. The API operates in real-time, communicating messages from a microcontroller to the smartphone of the user instantly. It’s an easy and excellent way to communicate messages to a registered number or Telegram account. Messages are communicated as HTTP GET requests from a microcontroller or an app.ĪPI is specifically designed for use with IoT devices and web applications. Whatabot is a third-party service that allows real-time messages to be sent via WhatsApp or Telegram.

To communicate, you’ll also need a smartphone device with an active SIM and either the WhatsApp or Telegram app installed. The cable is necessary to upload the sketch to the board from a host computer. What’s required is an ESP32/ESP8266 board and a MicroUSB cable. There are no circuit connections for this project. We are choosing ESP32 because it’s a WiFi development board and requires no extra components to connect with a WiFi access point. In this project, we’ll program an ESP32 board to directly communicate messages to a WhatsApp number or a Telegram account. So, what if these messages could be sent via the IoT to a user’s WhatsApp or Telegram account instead? But sometimes text messaging is unavailable between devices. Typically, text messages are sent via WiFi or SMS. In many Internet-of-Things (IoT) applications, it’s necessary to send alerts to the user in the form of messages.

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