Project Hub /Healthcare Biomedical & Assistive/Smart Diagnostic Tools/Smart Wellness Clock

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ESP32

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3 – 6 Hours

Complete Kit

Smart Wellness Clock

A smart room display and monitoring system built on the ESP32-S3-BOX featuring an LVGL graphical user interface, real-time NTP clock, and AHT30 temperature/humidity sensor integration.

Originally published on CircuitDigest

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

ESP32-C3 Development Board with Berg Pins - Unsoldered Rs. 390.00
1200mAh 18650 Li-ion Bat – Reliable 3.7V Power Cell Rs. 129.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

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How It Works

The Smart Wellness Clock functions as an intelligent desktop terminal by combining real-time internet synchronization, environmental sensing, and an embedded graphical user interface. At its core, the ESP32-S3-BOX development kit connects via Wi-Fi to fetch accurate time updates from an NTP (Network Time Protocol) server, ensuring precise timekeeping without manual configuration. Local environmental metrics—specifically ambient temperature and relative humidity—are gathered using the integrated AHT30 sensor, which communicates environmental readings to the microcontroller. To present this data clearly, the system utilizes the LVGL (Light and Versatile Graphics Library) framework to render a responsive, interactive graphical user interface directly onto the built-in display of the ESP32-S3-BOX. The software infrastructure is managed through the ESP-IDF development framework and the associated ESP-BSP board support package, handling hardware abstraction, task scheduling, and peripheral driver communications. Optionally, an 18650 lithium-ion battery can be integrated to provide portable power, allowing the monitoring station to operate independently of a tethered USB connection, provided power delivery requirements are managed safely.

Why Build This

Develop professional-grade IoT desktop appliances that merge real-time network services with local environmental sensors.

Gain practical experience implementing embedded graphical user interfaces using LVGL on high-performance dual-core microcontrollers.

Design connected smart home monitoring nodes capable of tracking indoor room comfort parameters like temperature and humidity.

Real-World Application

Smart home environment monitoring, ambient room displays, and connected desktop weather/time stations.

Skills You'll Learn

Embedded GUI development

Real-time clock synchronization

I2C sensor interfacing

Wi-Fi network provisioning

Power management for lithium-ion systems

Safety Precautions

Direct connection of a 3.7V Li-ion battery without proper voltage conversion to the 5V VBUS line is not recommended for long-term use.

Technology Tags

ESP32-S3

LVGL

FREERTOS

ESP-IDF

WI-FI

NTP

I2C

AHT30 SENSOR

TFT DISPLAY

CAPACITIVE TOUCH

I2S AUDIO

Frequently Asked Questions

Can I power this project using a standard 18650 Li-ion battery?

Yes, an 18650 battery can be used for portable power, but you must ensure proper voltage conversion instead of connecting a 3.7V battery directly to the 5V VBUS line to avoid hardware instability or component damage over time.

Do I need an internet connection for the clock to function?

An active Wi-Fi connection is required to fetch real-time updates from an NTP server. Without network access, the system will not be able to synchronize the correct time automatically.

What software environment is required to compile and flash the code?

The project requires the ESP-IDF development framework, the ESP-BSP board support package, and the LVGL graphics library configured within your development environment.

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This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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