In a developer's journey to support IoT devices with InfluxDB v2.0, the first step is successfully integrating a particulate matter sensor into an ESP8266 board, allowing data to be written to InfluxDB v1.x using an existing library. However, this was only a temporary solution as the library did not support InfluxDB v2.0. A proper fork of the original repository was created and submitted for review, enabling the use of both versions 1.x and 2.x of InfluxDB with the new library. The integration process is straightforward, requiring the addition of specific configuration parameters from the user's InfluxDB account and a simple setup in an Arduino sketch to write data to the v2.0 server.