Measure Speed with Arduino and Flash

Measuring speed with Arduino isn‘t something new, but the interesting part of this project that speed information is displayed on Flash application. Application has been built using Flex 4 and is running on Nexus One.

This project applies the same concept stated above. Using two photo resistors paired with laser as a form of trip wire and an Arduino Duemilanove with an ATMEga328 to capture the tripping action. The tripping action is used to calculate for the speed which is then sent by the Arduino through serial protocol to the computer till these point everything is fairly common.

Arduino measures speed by using two photoresistors and couple laser pointers. When pointers are interrupted with some obstacle, microcontroller then calculates the time taken to trip both sensors. Calculated value is sent via USB which acts as virtual serial port and then reaches Flash client. Once data is in, it is up to your imagination what you wan‘a see including current speed, and other timing parameters. The most valuable part in this project through to talking to Flash applications from external world. All files are published in GitHub under source MIT license.

Rest of the project