Nirmal Maa

INDIA • + Follow

Nirmal Maa

INDIA
- 6
- 0
Engineer

UNITED STATES OF AMERICA
- 0
- 0
2

Description

DIY low cost Smart watch

Hello, PCBWay Community! I am thrilled to share my Homemade Smartwatch project with all of you. This project is an affordable yet powerful smartwatch that packs impressive features into a compact design. From tracking time to monitoring real-time data, this smartwatch is a practical and fun DIY project for enthusiasts of all skill levels.

Project Overview

The Homemade Smartwatch is a wearable device featuring a sleek design and customizable functionality. Powered by an Arduino-compatible microcontroller, this smartwatch incorporates an OLED display for a clear and crisp interface, along with sensors and buttons for user interaction. Its modular approach makes it suitable for anyone looking to explore wearable technology.

Key Features

OLED Display: A vibrant and energy-efficient 0.96-inch display.
User Controls: Buttons for easy navigation and functionality control.
Compact Design: A custom PCB design and 3D-printed enclosure for a professional look.
Expandable Functionality: Add sensors or other modules for personalized features.

To help you build this smartwatch, I am sharing the following files:

Gerber Files: For fabricating the PCB.
BOM (Bill of Materials): A detailed list of components used in the design.
Pick-and-Place File: For automated assembly.
Arduino Code: The complete firmware to bring your smartwatch to life.

How It Works

The smartwatch is based on a microcontroller that handles inputs from buttons and processes data to display on the OLED screen. The PCB design ensures that all components fit perfectly into the 3D-printed enclosure, providing a polished and wearable gadget. You can easily program the microcontroller to add more features such as step counting, notifications, or even weather updates.

Why I Need Your Support

I am participating in PCBWay's 7th Design Contest, and your support can make a huge difference. By voting for my project, you not only recognize the effort behind this smartwatch but also motivate me to create and share more innovative DIY projects.

I invite you to check out the complete tutorial and download all necessary resources to build your own Homemade Smartwatch. Let’s bring this project to life together!

Vote for My Project and Support Me Here!

Thank you for your encouragement, and happy making!

Code

ESP8266__SmartWatch.ino

Code

C/C++

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_SHTC3.h>

// Define OLED display size
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 32
#define OLED_RESET    -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

Adafruit_SHTC3 shtc3; // SHTC3 sensor object

// Include converted XBM images
#include "temp_icon.xbm"
#include "humidity_icon.xbm"

bool showTemperature = true; // Toggle flag for display switching
float temperature = 0, humidity = 0;

void setup() {
    Serial.begin(115200);
    
    // Initialize OLED
    if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
        Serial.println(F("SSD1306 allocation failed"));
        for (;;);
    }
    display.clearDisplay();
    
    // Initialize SHTC3 sensor
    if (shtc3.begin()) {
        Serial.println("SHTC3 sensor found");
    } else {
        Serial.println("SHTC3 sensor not detected!");
        while (1);
    }
}

void loop() {
    // Update sensor data
    sensors_event_t humidityEvent, tempEvent;
    shtc3.getEvent(&humidityEvent, &tempEvent);
    temperature = tempEvent.temperature;
    humidity = humidityEvent.relative_humidity;

    display.clearDisplay();
    
    if (showTemperature) {
        // Show temperature with thermometer icon
        display.drawBitmap(0, 0, temp_icon_bits, 32, 32, SSD1306_WHITE);
        display.setCursor(40, 10);
        display.setTextSize(2);
        display.setTextColor(SSD1306_WHITE);
        display.print(temperature, 1);
        display.println("C");
    } else {
        // Show humidity with percentage & droplet icon
        display.drawBitmap(0, 0, humidity_icon_bits, 32, 32, SSD1306_WHITE);
        display.setCursor(40, 10);
        display.setTextSize(2);
        display.setTextColor(SSD1306_WHITE);
        display.print(humidity, 1);
        display.println("%");
    }
    
    display.display();
    
    showTemperature = !showTemperature; // Toggle display
    delay(2000); // Wait 2 seconds
}

Schematic and Layout

Schematic

ESP8266_SmartWatch_Schematics.png

Download Gerbers Download BOM(Bill of materials)

Jan 19,2025

185 views

DIY low cost Smart watch

Support My Project in PCBWay's 7th Design Contest!

185

Published: Jan 19,2025

Download Gerber file 1

BOM(Bill of materials)

Centroid file

PCBWay Donate 10% cost To Author

File Last Updated: 2025/01/19 (GMT+8)

File update record

2025-01-1921:54:45

Centroid file is updated.

2025-01-1921:54:45

Parts List (BOM) is updated.

2025-01-1921:48:41

Gerber file is updated.

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