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RPM Spinning

As one of the rest of the world, we end up being at home and changing certain areas. One of them in my case has been the way of practicing sports, instead of going to the gym, I went to buy a spinning bike and online classes. Now, a few months after the purchase, I have decided to improve it by adding a revolutions per minute counter (essential for spinning) and a mobile phone holder.
The design consists of a screen that shows the rpms and meters (optional) controlled by a mini micro board (powered by a 9v battery) and a hall sensor that will detect the pedaling.

We will need a 3d printer, and some electronic components among them:

- pro micro plate
- OLED display 0.96” 128x64 I2C
- hall sensor
- A neodymium magnet
- 2 switches
- Connectors
- 1 Battery 9v 6LR61
- battery connector
- some screws”

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