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Best bike lights: best front and rear road bike lights
UK bike lights law | Steady or flashing, do I need reflectors and can I be fined? - BikeRadar
When it comes to safely riding a bike around cars, the more lights, the better. The build is pretty simple — a coin cell-powered ATtiny85 reads input from a spring vibration sensor and flashes the LEDs. He cleverly used cardboard and a laser cutter to mock up a prototype for a board that fits between the spokes. Pretty cool for your second professionally-fabbed PCB ever, if you ask us. Ride past the break to check out the build video. When the wheel spins the spring accelerometer short circuits and the LEDs turn on.
Is a flashing light legal or do they have to be steady? And do you have to fit reflectors too? Here, we set the facts straight.
Persistence of Vision POV effects let you display arbitrary images with just a few controllable pixels on a fast moving object by changing the pixels' colours fast enough. This is yet another implementation of POV on a bike wheel. Adafruit has a similar project , they sell the kits and have it well documented, there's probably a few more implementations.