This thesis focuses on the development of a solar irradiance sensor, a key element in the energy sector, agriculture, and long-term climate monitoring. The main approach is based on the use of a solar cell that simultaneously serves as both a measuring element and a power source for the sensor. The system uses a Li-ion capacitor for energy storage and LoRa technology for wireless communication. Data is sent via the LoRaWAN network to a cloud platform for visualization and storage.
The result of this work is a functional prototype of an autonomous sensor that operates at a five-minute interval. Its average current consumption is 37.9 µA, which is sufficient for continuous operation with minimal solar radiation.
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