Design of an Ultra-Low Powered Data-Logger for Stand-Alone PV Energy Systems

Rehman, Asif Ur and Iqbal, Tariq (2020) Design of an Ultra-Low Powered Data-Logger for Stand-Alone PV Energy Systems. EJECE, European Journal of Electrical Engineering and Computer Science, 4 (6). ISSN 2736-5751

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This paper presents an open-source, ultra-low powered data-logger for off-grid photovoltaic (PV) energy systems. Deep-sleep mode of ESP32-S2 microcontroller is used along with voltage, current, and light sensors for logging the data of PV energy system to an external micro SD card. A toggle switch is used to switch the operational modes of data-logger between deep-sleep and web-server modes. Real-time PV data can be monitored in a local web-portal programmed in the microcontroller. The same web-portal is also used to check and download the historical data of a PV energy system. The energy consumption of the designed system is 7.33mWh during deep-sleep mode and 425mWh during the web-server mode. The total cost of the designed data-logger is C$ 30.

Item Type: Article
Item ID: 15581
Keywords: PV data-logger, open-source data-logger, ultra-low powered data-logger, Off-grid PV system, Renewable Energy, solar energy, ESP32-S2, PV monitoring System
Department(s): Engineering and Applied Science, Faculty of
Date: 30 December 2020
Date Type: Publication
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