Developing an Open Source (Hardware and Software) LoRaWAN Sensor
summary
Open-source LoRaWAN sensor hardware and firmware for museum environmental monitoring, designed in KiCad and published on GitHub, uses an STM32WLE5 module, USB‑C recharging, local storage and CLI, and supports I2C sensors (BME680 handled as multi‑channel). Prototypes come from Seed Studio and a 65‑unit production run assembles cleanly; field trial runs 60 units in 5 museums. Firmware uses hardware AES/RNG (about 35× faster than software), a ~1,000‑line LoRaWAN subset, CI with ~90% test coverage.
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chapters (11)
- 0:00Introduction
- 1:51Customer requirements
- 3:18LoRaWAN solution
- 4:42Hardware design
- 6:54Hardware variants
- 7:37Software challenges
- 8:20Development tools
- 9:24Software architecture
- 10:50Hardware acceleration
- 12:12Continuous integration
- 13:37Project status
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