Summary
In this chapter, we explored different data-based protocols for IoT applications. We first explored the HTTP protocol and learned how we could use HTTP with ESP32 to communicate with web servers and use ESP32 as a web server or HTTP client.
Continuing our exploration, we learned about the MQTT protocol, highlighting its real-time capabilities through the pub/sub model. By learning how to implement MQTT clients on ESP32, we acquired the ability to build dynamic and responsive IoT applications. Additionally, we harnessed the power of webhooks, using them to trigger actions based on events, thereby enhancing interactivity and connectivity with external services. This chapter equipped us with the expertise to choose the right protocol for specific project requirements.
In the next chapters, we’ll use all the resources we have learned about in this chapter and previous chapters to work on some real-life practical projects using ESP32.
