Sending Temperature and Humidity Data to AWS IoT Core using ESP32 and DHT22

Photo by Jorge Ramirez on Unsplash

In previous articles, we learned how to set up the Wifi, the OLED, and the DHT22. In this article, we will work on sending data to our AWS IoT core as a “thing”. I am writing this article because many other articles are very vague on how to actually set up the connection between the ESP32 and AWS IoT.

Of course, there are some prerequisites to this article.

Prerequisites:

• Must have an ESP2 and have it connected to an Arduino IDE. If not you can read the article here:

Integrating the Arduino IDE with the ESP32 board

• Must have an OLED connect to the ESP32. If not you can read here:

Setting up the IIC OLED SSD1306 by using the ESP32 and Arduino IED

• Must have the WiFi chip on the ESP32 working as well. Which of course if you do not you can read here: