This article describes a do-it-yourself network of Bluetooth Low Energy-based wireless sensors, which seeks to manage earlier-identified trade-offs in cost, required technical skill, and maintainability, based on the Raspberry Pi™ single-board computer and a series of microcontroller boards. This builds on the author’s prior work exploring the construction of a low-cost Raspberry-Pi™ based datalogger, iterating upon reviewer and practitioners’ feedback to implement and reflect upon suggested improvements.
The system is based on the Raspberry Pi as a central station and Adafruit Bluefruit Feather nRF52 processors and sensors performing the monitoring.
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