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Mayavi

A BLE OLED Watch for a little girl's birthday...

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I've been neck deep in consulting projects, missing the days where I could fool around with my personal projects. When my daughter asked me to make a watch for her as a birthday gift recently, it seemed like the perfect opportunity to get back to some tinkering. I hope I can finish this project on time, and hope to record my progress here.

This is an Open Source Hardware Project, and you can find the files here:

https://github.com/electronut/ElectronutLabs-mayavi

Specifications

  •  Nordic nRF52832 BLE SoC
  • Chip antenna
  • 0.96" OLED display breakout
  • ST Micro LIS2D12 accelerometer
  • 2 x Side mounted buttons
  • 200 mAh LiPo battery
  • Buzzer SMD 5 mm x 5 mm

PCB Design

This is a two-PCB design, with the 0.96 inch OLED PCB soldered on to the botton PCB which has all the components, including the LiPo battery (glued) on to it. That leaves the bottom surface of the PCB free and flat for wearing.

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