Smart Watch

A smart watch becomes the most significant item in a wearable device category.

I did use the mbed web complier. I wish you use the mbed web complier.

Step 1: Parts

- WIZwiki-W7500 at WIZnet : WIZwiki-W7500

- OLED 128x64(SSD1306/i2c) at Adafruit :http://www.adafruit.com/products/326

- Easy module Shield at YWRobot(only china site) : YWRobot

- Jumper cable : connect OLED and easy module Shield

Libraries

- SSD1306 Driver

- Ethernet library (made in WIZnet)

Apps

- mbed web complier : LINK

Step 2: Hardware

           WIZwiki-W7500     OLED 

 SCL         PA_9                   SCL 

 SDA        PA_10                  SDA 

 GND       GND                     GND

 VCC        VCC                     VCC  

            WIZwiki-W7500      

Button           PC_0

Step 3: Realize the smart clock

1. The Network time obtain from NTP Server using SNTP Protocol

2. The initial value of RTC write the bring data.

3. The Clock count using setting value.

Step 4: Mbed web complier and CMSIS-DAP

You can download the firmware using the mbed web complie.

1. When you connect the USB cable to the WIZwiki-W7500, PC recognized as a removable disk. Removable disk name is MBED.2. You “drag and drop” or copy the firmware to the removable disk, the firmware writing progress has completed.

3. After completing the firmware writing, open to check the removable disk.

4. If “fail.txt” file is exists in the removable disk, it means writing the firmware has failed.

5. After pressing the Reset button (SW1) of WIZwiki- W7500, please repeat the steps from 2.

Step 5: Design the case of clock

3D print : LINK

Step 6: Confirm the operation

Step 7: Source code and reference site

- smart watch source code : LINK

- ethernet source code : LINK

- 3D print : LINK