WiFi Smartwatch with MPU-9250 and OLED
Posted: Sun Jan 03, 2016 11:56 amVideo of me testing the compass on the smartwatch:
I have been working on this project for quite some time, now I'm finally at the stage to show you something. I have always liked the idea customizing consumer electronics devices, so I gave a WiFi smartwatch based on the ESP8266 a try. Here are the specs:
I designed the PCB in KiCad and got it made by Seeedstudio. It was surprisingly easy to solder even the tiny QFN parts using a hot air gun and good solder paste. The ESP8266 communicates with the peripherals on an I²C bus. In the video, the ESP8266, the FT232RQ and the 32Mbit flash chip is hidden underneath the LCD screen.
Now I need to write drivers for more functions (accelerometer, gyroscope, ...), get a wristband and 3d-print a case.
I haven't released any documentation, code or PCB designs yet, but I will do once I have made some more progress. If you need any code / ... now, feel free to contact me.
I have been working on this project for quite some time, now I'm finally at the stage to show you something. I have always liked the idea customizing consumer electronics devices, so I gave a WiFi smartwatch based on the ESP8266 a try. Here are the specs:
- ESP8266 with 32Mbit of flash memory
- MPU-9250 gyroscope, accelerometer with integrated AK8963 magnetometer
- RV3029 Real Time Clock
- Temperature sensor (measure mostly body temperature)
- FT232RQ for USB communication
- SSD1306 OLED Display, 128x64
- 3 Buttons
- MCP73831 LiPo charger
- 250mAh LiPo battery
- Dimensions: 35 * 39 * 11mm
- WiFi with chip antenna
I designed the PCB in KiCad and got it made by Seeedstudio. It was surprisingly easy to solder even the tiny QFN parts using a hot air gun and good solder paste. The ESP8266 communicates with the peripherals on an I²C bus. In the video, the ESP8266, the FT232RQ and the 32Mbit flash chip is hidden underneath the LCD screen.
Now I need to write drivers for more functions (accelerometer, gyroscope, ...), get a wristband and 3d-print a case.
I haven't released any documentation, code or PCB designs yet, but I will do once I have made some more progress. If you need any code / ... now, feel free to contact me.