Here I will discuss some of the particular features of the board and how they work
Speedometer
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The device we are using to determine the speed of the longboard is called a hall effect sensor. The hall effect sensor will output a voltage in response to a magnetic field being passed by it. By attaching a small magnet to one wheel of the longboard we can determine how many rotations the wheel goes through in one second and then through this data we can determine the speed the longboard must me traveling.
Features
OLED Display
To Display both speed and distance readings we have chosen to used an OLED display for its great contrast and clarity. Unlike LCD displays our display will not require a back-light to be readable in the dark.
Reset-able Odometer
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Much like how the hall effect sensor's rotations per second will be used to determine speed, the odometer will couple this rotations per second value with the measured circumference of the wheel to determine the distance traveled.
Speed-Read LEDs
High speeds are fun, however, they can also be dangerous. A lot can happen in the time it takes to look down and read the OLED display which is why we have integrated 6 "Speed-Read" LEDs which can be quickly glanced at and used to determine rough speed. Each LED represents 5 mph. If you look down to see 2 LEDs on then you can surmise you are going between 5 to 10 mph.
