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DIY Speedometer using Arduino and Processing Android App
In this project we make a Cool Speedometer for bikes or any automotives by using Arduino which broadcast the speed using Bluetooth to an Android application that we created using Processing. The complete project is powered by an 18650 Lithium cell and hence highly portable along with your vehicle. To spice it up a bit more I have added the option of charging your mobile phone as it displays your speed. Yes, you can also use this as a power bank for your mobiles on the go as the 18650 has high charge density and can easily be charged and discharged.
I will completely guide you from scratch till the completion, speedometer can he hooked up to our vehicle and tested. The cool feature here is that you can customize your android app for your personalisation and add more features according to your creativity. But, if you do not want to build the app by yourself and just build the Arduino part then no worries, just download the APK file (read further) and install in your Android mobile phone. Also check the full Video at the end.
More details with code and video: https://circuitdigest.com/microcontroller-projects/diy-speedometer-using-arduino-and-processing-android-app