Electric Longboard
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Project Overveiw
In this electric longboard project we want to enhance the longboard riding experience by adding automatic headlights, a way to measure the speed of the rider, and the distance rode. Riding at night can often be dangerous, these headlights will help to improve safety for the rider (along with their helmet). Typically a rider has no sense of how far or how fast they have traveled, we hope these capabilities will lend a quantitative aspect to daily usage.
Objectives
These three aspects will be the focus of our project:
- Distance By adding a GPS chip to the board we can collect coordinate data at 1 Hz, which we can then filter and use to calculate distance travelled on a raspberry pi board.
- Speed Using a reed switch on the truck of the longboard, and a magnet attached to a wheel of the longboard we want to collect data on a second time-scale interval, which we can then convert to speed travelled based on the circumference of the wheel.
- Headlights We want to create automatic headlights that will come on when it becomes dark outside. By having a light sensor attached to our raspberry pi we can tell when it becomes dark and turn on the LED's. By interpreting the data from our reed switch circuit we also hope to be able to tell which way the board is rolling so the front of the board has headlights on, as to not blind cars or riders behind. In the process we want to add blinking safety lights in the back of the board, whichever way it may be facing.
Challenges
- Setting Up Reed Circuit Building and programming the reed circuit so it can reliably tell us how fast the board is traveling, especially at high speeds when the wheel may spin many times a second. Also figuring out how to distinguish which direction the longboard wheel is spinning.
- GPS Chip We don't know how to use or interpret a GPS chi
Budget
| Item | Price | Vendor |
|---|---|---|
| Arduino UNO REV3 | $33.10 | Arduino |
| microtivity IB181 170-point Mini Breadboard | $5.99 | Amazon |
| LED Display Voltmeter ( 3.5 - 30V ) | $3.11 | GearBest |
| KD 53-20 High Voltage Brushless Outrunner 240KV | $39.48 | HobbyKing |
| ZIPPY Flightmax 5000mAh 3S1P 20C X2 | $46.40 | HobbyKing |
| XBee Modules | $19.00 | Mouser |
| Drive Train | $50.00 | TBA |
| Total | $147.08 |
