Project description

UV-watch is a fully open watch project featuring an calibrated UV-light sensor. It will give an alarm when it detects dangerous levels of UV light and is meant for people with a highly sensitive skin.**
The full design (electronics, mechanics and software) is available under free licenses and the design is exclusively made with free tools.

The project started when the need came up during ThePort hackathon 2015.

To be informed of the latest developments, and participate in the discussions, please subscribe to the mailing list.

|:/project/f-watch/uploads/b38279b662f225220464afafbb4fb3bd/fwatch-full-side.jpg :/project/f-watch/uploads/5b12b0d8cffdedf599d2e3909be6fd41/fwatch_side.png /> :/project/f-watch/uploads/b909a627165611b57d63571275c1199c/fwatch-top.jpg :/project/f-watch/uploads/c7f4fb026b4206ef68cdd8448a8ede4a/flyer.jpg |:/project/f-watch/uploads/5b12b0d8cffdedf599d2e3909be6fd41/fwatch_side.png /> :/project/f-watch/uploads/b909a627165611b57d63571275c1199c/fwatch-top.jpg :/project/f-watch/uploads/c7f4fb026b4206ef68cdd8448a8ede4a/flyer.jpg |:/project/f-watch/uploads/c7f4fb026b4206ef68cdd8448a8ede4a/flyer.jpg | |----|----|----|

Example of how the watch can look like, based on the f*watch (click picture to enlarge)*

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Specifications

Electronics*

• Sensors
  • UV light sensor
• I/O
  • 128x128 pixels LCD with backlight
  • Micro-USB connector, 4 Buttons
  • Buzzer, vibrating motor
  • MicroSD memory slot
• Various
  • 500 mAh Lithium-ion battery, fuel gauge
  • 4-layer PCB
• Developed with open KiCad design tool for schematics and PCB
• "Block diagram"

Mechanics*

• 3D-printed watch case and buttons
• Developed with open FreeCAD design tool

Software*

• FreeRTOS operating system
• Bootloader, drivers, applications
• Interface to USB host (e.g., upload firmware)
• Developed with open gcc compiler

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Project documents

• General information
  • Movies
  • "Flyer"
  • Frequently Asked Questions
  • What others write about it
  • Users

• Information for designers
  • Electronics
  • Mechanics
  • Software
    • Software
    • Tutorials for development tools
    • Host side software
    • Application development guide
    • Software to-do list
  • Other interesting projects

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Team

• Project management:
• Electronics:
• Mechanics:
• Software:
• OHR site management: Erik

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Status

Date	Event
10-2015	First idea came up during ThePort hackathon
25-10-2015	First wiki page

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25 October 2015