I'm thinking of creating my own version of the stylus made by the joy factory. Here's a link to the stylus: http://www.thejoyfactory.com/product/bcu201
The description says the stylus generates an electromagnetic field around the tip, which fools the capacitive touch screen into thinking a finger of larger diameter is touching it, which allows for a smaller tip than usual.
Does anyone know how its doing this? Im guessing there's a winding further up the stylus thats connected to a small signal generator that generates the same frequency as a human finger. Im not completely sure if this is accurate though, since the em field seems like it might be coming from the tip itself and not the winding.
any info would be very helpful, thanks
The description says the stylus generates an electromagnetic field around the tip, which fools the capacitive touch screen into thinking a finger of larger diameter is touching it, which allows for a smaller tip than usual.
Does anyone know how its doing this? Im guessing there's a winding further up the stylus thats connected to a small signal generator that generates the same frequency as a human finger. Im not completely sure if this is accurate though, since the em field seems like it might be coming from the tip itself and not the winding.
any info would be very helpful, thanks