Recent content by a87me

Thanks Carl Pugh and vk6kro, some problems I found: 1. If use wire coil (Linear variable differential transformer), it seems that the moving object must be inside the coil, if outside the coil it does not work very well or generate too low voltage. My device only works outside the coil. 2...

Hello, I have cool idea for a device and one hardest part of it is to detect the movement of the object. I think I can use a wire coil, and a small magnet attached to the moving object. When the object passes the wire coil (up or down), there will be small voltage inside the wire coil. It...