* Arduino Pro Micro (probably each Leonardo will do) * Hall sensor + magnet (most generic sensor with breakoutboards) * SSD1306 128*64 I2C screen. * SPI SD card reader + SD card (mine says HW-125) * ...

Using an Arduino Nano, an LCD screen, Hall effect sensor, magnet, and crafty electrical tape and zipties - I created a little speedometer for my bike. Essentially, I just attached the magnet to my ...

It is pretty easy to go to a big box store and get a digital speedometer for your bike. Not only is that no fun, but the little digital display isn’t going to win you any hacker cred. [AlexGyver] has ...

[Martyn] is restoring a 32-year-old Honda motorcycle, so when the ancient speedometer broke last year he thought it was prime time to start of a digital speedometer project. We’re loving the results ...

A Hall effect sensor or Hall sensor is a magnetic non-contact sensor that generates an electrical signal proportional to the magnetic field applied to it. Hall effect sensors are widely used in ...