This project is a basic fitness tracking device built with an Arduino, an LIS3DHTR accelerometer, and a DS3231 Real-Time Clock (RTC) module. It tracks steps, calculates calories burned, displays distance traveled, and provides the current date and time.
- Step Tracking: Utilizes the LIS3DHTR accelerometer to detect steps and update the step count in real time.
- Calorie Calculation: Automatically calculates calories burned based on the number of steps taken.
- Distance Measurement: Provides the distance covered in both kilometers and miles based on the step count.
- Date & Time: Displays the current date and time using the DS3231 RTC module.
- Mode Switching: Use a button to switch between different display modes, including step count, calories burned, distance traveled, and more.
- Customizable Variables: Modify average calorie and step distance values for accurate results.
- LIS3DHTR Accelerometer (I2C): Measures acceleration to count steps.
- DS3231 RTC (I2C): Keeps track of the current date and time.
- Button: Used to switch between modes.
- Arduino Board (Uno or GroveBoard): Runs the program and manages the sensors.
| Component | Arduino Pin | Description |
|---|---|---|
| LIS3DHTR Accelerometer | SDA (A4), SCL (A5) | Connect to the I2C pins for communication. |
| DS3231 RTC Module | SDA (A4), SCL (A5) | Shares I2C pins (A4, A5) with the accelerometer. |
| Button | Digital Pin D4 | Connect the button to digital pin D4 to change modes. |
| Power (VCC) | 5V | All components are powered from the Arduino's 5V pin. |
| Ground (GND) | GND | Connect the GND of all components to the Arduino's GND pin. |
- Step Tracking Mode: Shows the current number of steps you’ve taken.
- Calories Mode: Displays the estimated calories burned based on your steps.
- Distance Mode: Shows the distance traveled in both kilometers and miles.
- Time & Date Mode: Displays the current date and time.
- Welcome & Information Mode: Displays a welcome message and project details.
Switch between modes by pressing the button.
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Temperature Sensor Integration: Add a temperature sensor (like DHT11 or DS18B20) to measure and display real-time temperature data alongside other fitness metrics.
- Alternatively, connect the fitness watch to a weather API to retrieve and display local temperature data.
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Bluetooth Connectivity (HC-05 Module):
- Integrate the HC-05 Bluetooth module to sync the fitness tracker with a smartphone.
- Receive notifications and calls directly on the watch, providing real-time alerts for incoming messages, calls, and other notifications.
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OLED Display: Display all metrics (steps, calories, time, temperature, notifications) on an OLED or other suitable display for a more user-friendly interface.
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Heart Rate Sensor: Add a heart rate sensor to track and display heart rate data, expanding the fitness capabilities of the watch.
Here are some helpful resources for building and enhancing the fitness watch:
- Arduino Official Website: https://www.arduino.cc/
- LIS3DHTR Accelerometer Documentation: LIS3DHTR Datasheet
- DS3231 RTC Module Guide: DS3231 RTC Documentation
- Button Control in Arduino: Button Tutorial
- GroveBoard Manual: Manual
- GroveBoard Link: Buy Here
If you need further help or tutorials, here are some useful links:
- How to Install Visual Studio Code on Windows 11: YouTube
- How to Program Arduino in VSCode: YouTube
- LIS3DH Accelerometer Tutorial: YouTube
- Getting Started With DS3231 RTC Module: YouTube
- How to Use a Button with an Arduino: YouTube
- Grove Beginner Kit for Arduino Review: YouTube
If you have suggestions for improvements or would like to contribute, feel free to reach out.