Uploaded September 2025 | Updated September 2026, 2 weeks ago
๐ข๐ฟ๐ฑ๐ฒ๐ฟ ๐ฃ๐๐ ๐ฎ๐ ๐ญ$ ๐๐ถ๐๐ต ๐๐ฟ๐ฒ๐ฒ ๐ฆ๐ต๐ถ๐ฝ๐ฝ๐ถ๐ป๐ด: allpcb.com/activity/one-dollar-campaign/?code=PT18
๐๐ฏ๐ผ๐๐ ๐ง๐ต๐ถ๐ ๐ฉ๐ถ๐ฑ๐ฒ๐ผ:
In this project, we will learn how to build an IoT Based Battery SoC (%) Monitoring System using ESP32. The ESP32 module from Espressif is a powerful microcontroller with integrated Wi-Fi and Bluetooth, making it ideal for connected and battery-powered applications.
This project is based on a DIY ESP32 Battery Powered IoT Board with a built-in Battery Management and Charging System. The board can charge any single-cell Lithium-Ion or Lithium-Polymer battery using a BQ24092D charging IC, while a TPS63020 buck-boost converter provides a stable 3.3 V supply to the ESP32. A simple battery sensing circuit connected to the ESP32 ADC pin allows accurate measurement of the battery voltage, from which the State of Charge (SoC %) can be calculated.
Since the battery is the primary power source, constant monitoring is essential to prevent overcharging, deep discharging, or failure. The charging IC ensures safe charging with auto cut-off, while the ESP32 continuously measures the battery status. Unlike older systems where battery management was limited to LED indicators, the integration of IoT allows users to monitor the battery remotely from a ThingSpeak dashboard on a computer or smartphone.
๐๐ฒ๐ ๐๐ฒ๐ฎ๐๐๐ฟ๐ฒ๐ ๐ผ๐ณ ๐๐ต๐ฒ ๐๐๐ฌ ๐๐ฆ๐ฃ๐ฏ๐ฎ ๐๐ผ๐ฎ๐ฟ๐ฑ:
1. TPS63020 buck-boost converter for stable 3.3 V operation
2. BQ24092D charging IC for safe USB charging and battery management
3. Voltage divider network for sensing and SoC calculation
4. Wi-Fi integration with ESP32 for real-time battery monitoring on ThingSpeak
5. Optional OLED display for local monitoring
๐ฆ๐ผ๐๐ฟ๐ฐ๐ฒ ๐๐ผ๐ฑ๐ฒ & ๐ช๐ฟ๐ถ๐๐๐ฒ๐ป ๐ง๐๐๐ผ๐ฟ๐ถ๐ฎ๐น: how2electronics.com/iot-based-battery-soc-monitoring-system-with-esp32
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Website: how2electronics.com
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Twitter: twitter.com/how2electronics
๐ข๐ฟ๐ฑ๐ฒ๐ฟ ๐ฃ๐๐ ๐ฎ๐ ๐ญ$ ๐๐ถ๐๐ต ๐๐ฟ๐ฒ๐ฒ ๐ฆ๐ต๐ถ๐ฝ๐ฝ๐ถ๐ป๐ด: allpcb.com/activity/one-dollar-campaign/?code=PT18
๐๐ฏ๐ผ๐๐ ๐ง๐ต๐ถ๐ ๐ฉ๐ถ๐ฑ๐ฒ๐ผ:
In this project, we will learn how to build an IoT Based Battery SoC (%) Monitoring System using ESP32. The ESP32 module from Espressif is a powerful microcontroller with integrated Wi-Fi and Bluetooth, making it ideal for connected and battery-powered applications.
This project is based on a DIY ESP32 Battery Powered IoT Board with a built-in Battery Management and Charging System. The board can charge any single-cell Lithium-Ion or Lithium-Polymer battery using a BQ24092D charging IC, while a TPS63020 buck-boost converter provides a stable 3.3 V supply to the ESP32. A simple battery sensing circuit connected to the ESP32 ADC pin allows accurate measurement of the battery voltage, from which the State of Charge (SoC %) can be calculated.
Since the battery is the primary power source, constant monitoring is essential to prevent overcharging, deep discharging, or failure. The charging IC ensures safe charging with auto cut-off, while the ESP32 continuously measures the battery status. Unlike older systems where battery management was limited to LED indicators, the integration of IoT allows users to monitor the battery remotely from a ThingSpeak dashboard on a computer or smartphone.
๐๐ฒ๐ ๐๐ฒ๐ฎ๐๐๐ฟ๐ฒ๐ ๐ผ๐ณ ๐๐ต๐ฒ ๐๐๐ฌ ๐๐ฆ๐ฃ๐ฏ๐ฎ ๐๐ผ๐ฎ๐ฟ๐ฑ:
1. TPS63020 buck-boost converter for stable 3.3 V operation
2. BQ24092D charging IC for safe USB charging and battery management
3. Voltage divider network for sensing and SoC calculation
4. Wi-Fi integration with ESP32 for real-time battery monitoring on ThingSpeak
5. Optional OLED display for local monitoring
๐ฆ๐ผ๐๐ฟ๐ฐ๐ฒ ๐๐ผ๐ฑ๐ฒ & ๐ช๐ฟ๐ถ๐๐๐ฒ๐ป ๐ง๐๐๐ผ๐ฟ๐ถ๐ฎ๐น: how2electronics.com/iot-based-battery-soc-monitoring-system-with-esp32
....................................................................................................................................................................................................................................
Drop a like if you liked this video.
Don't forget to subscribe to our channel for more Electronics projects and tutorials.
Website: how2electronics.com
Facebook: facebook.com/howtoelectronicsfb
Instagram: instagram.com/howtoelectronics
Twitter: twitter.com/how2electronics
