Quoted from Jgaltr56:Heighway is on the right track by using inductive sensors to detect balls. It's amazing to me that new pinball machines still use mechanical switches.
Who is going to release the first wifi enabled pin? I would think it would be an easy add on for a Spike system.
you ever owned a machine with eddy sensors? ToM? CV? etc? they are a pain and take up a lot of space under the playfield for the detector board and then the amplifier board