I was thinking of inputting somewhat larger text on a touchscreen, and since I have fat and clumsy fingers, that will be a total pain to type by hand/fingers.
So I thought, it would be much easier for me to hold a pen-like object, and use that to tap on the touchscreen. Obviously, I would not want that object to be hard and sharp, else I'll damage the touchscreen.
So, I tried
- using a q-tip (cotton swab), dry - and the touchscreen didn't react.
- Got the q-tip wet with a bit of water - touchscreen didn't react.
- Tried to (very carefully) drag a screwdriver om the touchscreen, to see if metal makes a difference - touchscreen didn't react.
- Tried a various assortment of pens, and pencils (including the erasing rubber end) - touchscreen didn't react.
So, I was wondering - what would the properties of an object, that can serve as a tap/drag input tool on a touchscreen, be? Soft for one - but what are the properties required, so that the touchscreen would actually react to input, made using the object?
IIRC, touchpads can be implemented as "resistive" or "capacitive", but I do not know what property do they measure to provide input. Would that property be electric field? If so, could one use, say, an AA battery (don't have one with me to test) to provide input through a touchscreen?