In the previous article, I created a rudimentary Flask backend to receive example data from our ESP8266. Here's a further decomposed system diagram to give you a better idea of where we're going. The orange stars indicate our focus for this article.
In the previous article, I used an example sketch to read the temperature sensor, and another example sketch to connect to WiFi and POST data to an API that I still have to write.
Once I build out this basic example capability, I'll incorporate it into the temperature example and refactor the backend to receive temperature data.
As you can probably guess, next is to write a prototype Flask app, then I'll add the code to receive example data from our ESP8266. Please continue reading...
Ok, yeah, it's true, I'm a "few" years late to the ESP IoT game. But now that I've finally gotten around to it, I thought it would be fun to start with an Internet of Things (IoT) temperature monitor as I have several use cases in mind:
For now, I'm going to prototype a temperature sensor that posts data to an API. I'll showcase several technologies and walk you through the process I use to develop projects like this.
Here are the requirements I put together for the freezer monitor...
