Media Maker's Lab | Temperature and Humidity Sensor Network

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These little devices include the following components:
  1. A Raspberry Pi Pico W
  2. An SHT45 precision humidity and temperature sensor
The system sends temperature and humidity information every 15 minutes through our University's IoT network to this server, which saves the information into a mySQL database. Each device is marked with a unique ID number, which is also saved in the database. Then, data is graphed on the fly using JpGraph, a powerful free open-source graphing software that runs on the server.





The second generation of this system will feature a custom-designed PCB with better power regulation for the SHT45 sensors. The current design works well but occasionally devices need to be rebooted (e.g. every couple of weeks). A custom 3D-printed enclosure allows the devices to be mounted inobtrusively in several rooms in the music school, where I can monitor a week's worth of data at a time.




Last updated on 13 October 2025.
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