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iothings:proiecte:2023:solar_powered_weather_station_with_esp32 [2024/01/15 01:10] tudorel.tibrea [Results] |
iothings:proiecte:2023:solar_powered_weather_station_with_esp32 [2024/01/15 14:13] (current) tudorel.tibrea [Solar powered weather station with ESP32] |
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| * Academic year: 2023-2024 | * Academic year: 2023-2024 | ||
| * Source code:[[https://gitlab.cs.pub.ro/tudorel.tibrea/iot/-/tree/main]] | * Source code:[[https://gitlab.cs.pub.ro/tudorel.tibrea/iot/-/tree/main]] | ||
| + | * Demo + presentation: [[https://drive.google.com/drive/folders/1EvvDwn7LklOQQSkhjKmbFAPYsgpyLujw]] | ||
| ===Project Description=== | ===Project Description=== | ||
| This project aims to design and build a truly autonomous weather station by leveraging solar energy harvesting. The weather station will monitor the temperature, the humidity, the atmospheric pressure and the state of charge of the Li-Po battery. The project will use MQTT communication protocol with ESP32 to publish messages and subscripe to topics, making the data accessible for various applications. | This project aims to design and build a truly autonomous weather station by leveraging solar energy harvesting. The weather station will monitor the temperature, the humidity, the atmospheric pressure and the state of charge of the Li-Po battery. The project will use MQTT communication protocol with ESP32 to publish messages and subscripe to topics, making the data accessible for various applications. | ||
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| As you can see, the ADC reading for the battery are not that precise. We can think of at least 2 culprits in this case. First would be the ESP32 ADC's poor performance and the second one, the method chosen; because the ESP wakes from deep sleep, the energy draw increases very drastically and the battery voltage might vary.* | As you can see, the ADC reading for the battery are not that precise. We can think of at least 2 culprits in this case. First would be the ESP32 ADC's poor performance and the second one, the method chosen; because the ESP wakes from deep sleep, the energy draw increases very drastically and the battery voltage might vary.* | ||
| - | *For data visualization and plotting, MQTT explore was used | + | *For data visualization and plotting, **MQTT Explore** was used. |
| ======Conclusion====== | ======Conclusion====== | ||
| In conclusion, the proposed solution demonstrates how an ESP32, combined with a BME280 sensor, can be used to create a power-efficient, wireless weather station capable of continuously monitoring environmental conditions and transmitting the data in real-time via Wi-Fi and MQTT, showcasing the potential of IoT in remote sensing and data communication. Further improvements will be to find a way to get precise and constant readings of the battery state of charge, although the literature says it isn't quite correct to calculate it based on voltage; the most correct way to solve this problem from an strictly engineering standpoint is to use an dedicated IC such as a fuel gauge or a coulomb counter. | In conclusion, the proposed solution demonstrates how an ESP32, combined with a BME280 sensor, can be used to create a power-efficient, wireless weather station capable of continuously monitoring environmental conditions and transmitting the data in real-time via Wi-Fi and MQTT, showcasing the potential of IoT in remote sensing and data communication. Further improvements will be to find a way to get precise and constant readings of the battery state of charge, although the literature says it isn't quite correct to calculate it based on voltage; the most correct way to solve this problem from an strictly engineering standpoint is to use an dedicated IC such as a fuel gauge or a coulomb counter. | ||
