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also displays distance, spin count, and elapsed time, controlled by buttons.\n\nSpecial features include using interrupts for spin detection, gradually changing speed numbers on the display, and a 3D case design with the cover attached with magnets.\n\n![image](https://github.com/user-attachments/assets/e316a24f-7951-48db-8573-7519549123d7)\n\nThe 3D case and other information are provided on \nhttps://hackaday.io/project/199037-custom-arduino-nike-speedometer\n\n## User instructions\n\nTo change function press left button (D7 pin), this will cycle between functions:\n\n- Speed\n- Distance\n- Rounds (spins of the wheel)\n- Time\n\nThe right button (D5 pin) switches through sub-functions (or \"modes\"):\n\n- Speed: kph / mps / mean in kph\n- Distance: show units / hide units\n- Rounds: total spins / rpm\n\nSpecial functions to save data in EEPROM:\n\n- Press both the buttons for 5 seconds will save data (spins and time passed)\n- Keep buttons pressed for 10 seconds will delete data and restart the Arduino\n\n## TODOs\n\nNext thing to do:\nAutomatically save data when turning the Arduino off, by using a CAP and a voltage read to detect power off and save just before powering off:\nhttps://chatgpt.com/share/6726094c-0564-800c-a1c1-479772cbc928\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgiuliopons%2Fspeedometer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgiuliopons%2Fspeedometer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgiuliopons%2Fspeedometer/lists"}