Hi guys, I'm currently working on a project in which I would like to use an 16x2 LCD and a switch resembling the common mousewheel. I took apart a mouse and noticed that it uses a variable resistor to operate the scrolling. Since it is a variable resistor I can only understand how to make change it from values of 0-255, however I know it is possible to allow a continuous scroll. In my project I would like to be able to scroll through numbers (up and down) using this type of switch without having to reverse the rotation when it reaches the analogue reading reaches 255. Where can I find information on building this type of set up? Any help is appreciated, thanks!
