Smartwatch journey – Part 1


Smartwatch is kind of nice accessory for you and your phone. You can see time, notifications without touching your phone. I wish I could have a smartwatch with long lasting battery and I could show the content I like. The very good one (I don’t mean Apple Watch) are expensive. So I decided to build my own smartwatch 9 month ago. It was a challange for me and my friend, who will build a better one. The research I did took some time.

I would like to have:

  1. Bluetooth
  2. Low power consumption
  3. Display
  4. Button
  5. Optional: Accurate heart rate sensor.

So I need these things:

  1. Microcontroller with Bluetooth Low Energy
  2. Low power display
  3. LiPo battery with TP4056 charger
  4. 3D printer case
  5. Reliable heart rate sensor

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