Recent content by DrStrangelove

I used 5mm high brightness narrow beam LEDs (the 20000 mCd ones). One of those on a black background is visible from more than 200m in sunlight, provided you are into the cone of light it sends out. At night, it's very bright. I soldered them on perfboard, all in series. The trick is to have...

Here in France, the law is pretty clear : if it has 2 or 3 wheels and is propelled by the rider, then it's a bicycle. Trikes are bicycles too. There are a few extras : 2 mandatory brakes, lights if it's dark, reflectors, that kind of stuff. As for e-bikes, the limit is 250W, 25 km/h, and the...