Book Image

Hands-on ESP32 with Arduino IDE

By : Asim Zulfiqar
5 (1)
Book Image

Hands-on ESP32 with Arduino IDE

5 (1)
By: Asim Zulfiqar

Overview of this book

ESP32 is a versatile microcontroller and a great starting point for anyone venturing into the IoT realm, but its configuration and interfacing of sensors can be challenging for new users. Arduino Integrated Development Environment (IDE) simplifies programming, uploading code, and utilization of ESP32 capabilities, enabling users to incorporate it into their IoT projects with ease. This book will help you learn the essentials of sensing, networking, data processing, and applications with ESP32, laying a strong foundation for further IoT development. Starting with ESP32 and Arduino Ide 2.0 basics, you'll first explore practical implementation examples of interfacing sensors with ESP32. These examples will also teach you how to interface the ESP32 camera and display modules with ESP32. As you progress, you’ll get to grips with IoT network and data protocols, as well as the many options they unlock within IoT applications. The book will also help you leverage your newly acquired knowledge with exciting projects ranging from smart connected devices to data loggers and automation. By the end of this book, you'll confidently navigate ESP32 projects with newfound knowledge and skills, know what IoT protocol to select for your applications, and successfully build and deploy your own IoT projects.
Table of Contents (15 chapters)
1
Part 1 – Introduction: Getting Familiar with ESP32
5
Part 2 – IoT Protocols and ESP32
8
Part 3 – Practical Implementation

Integrating the PayPal API

In this section, we will set up the Webhooks that will enable us to receive a notification related to the payment in the ESP32. To set up the Webhooks, we will complete the following steps:

  1. Firstly, we will go to https://www.webhook.site and get a unique URL, as highlighted in the following figure:
Figure 7.4 – A unique URL on Webhook.site

Figure 7.4 – A unique URL on Webhook.site

  1. Then, to test our Webhook, we will use the PayPal Instant Payment Notification (IPN) simulator. It will help us to simulate the payment notification for testing. To access the IPN simulator, go to https://developer.paypal.com/dashboard/ipnsimulator using your web browser.
  2. Paste the unique URL into the IPL URL handler, and select Web Accept as the transaction type.
Figure 7.5 – The PayPal IPN simulator

Figure 7.5 – The PayPal IPN simulator

  1. For testing, leave all other values to default, and then go to the bottom of the page and click on Send IPN.
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