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For users delving into the exciting world of DIY IoT, one common challenge that they frequently find is how to effectively visualize the data generated by their custom-made devices using mobile apps or web browsers. These devices, often built around Arduino or ESP boards, empower makers to craft innovative solutions for a wide range of applications. However, the missing piece of the puzzle is to find a simple, straightforward and reliable way to visualize and interact with the sensor data. 

In this article, we’ll share nine different methods to log and save data with the ESP32. Would you like to monitor a specific sensor with the ESP32 and keep track of the data over time? Would you like to save all your data records but you don’t know how to do it or which method to use? Here we’ll show you different ways to save data permanently with the ESP32. We’ll show you methods that rely on third-party databases, services, hardware solutions, and others.