Plug in the Grow Monitor to a USB C cable and power supply. The QT Py ESP32-S3 will receive power and automatically begin logging and sending data to Adafruit IO.
Over time, you'll see data from your sensor begin to populate your Adafruit IO Feeds and appear on your Adafruit IO Dashboard.
Going Further
If you want to extend this project to add an email/SMS when the VPD or PPFD levels reach a certain value, you can follow our Adafruit IO Actions Learning System Guide which has an example of this usage.
If you want to learn more about IO Actions and the available blocks, visit the IO Actions Documentation: https://io.adafruit.com/actions-docs.
Page last edited October 03, 2025
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