Alexander has been writing a large ESP8266 tutorial series on HackADay.io about the versatile ESP8266. In the third installation of his guide, he walks through the process of sending data from sensors connected to an ESP to an REST API – Adafruit IO.
Many IoT data hosting providers have multiple options for protocols to send and receive data. Almost all of them support a basic HTTP GET/POST protocol, which is what we explore here!
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