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:
- Low power consumption
- Optional: Accurate heart rate sensor.
So I need these things:
- Microcontroller with Bluetooth Low Energy
- Low power display
- LiPo battery with TP4056 charger
- 3D printer case
- Reliable heart rate sensor