I noticed that I need to change my wireless mouse every few months because of the same reason: mouse wheel starts to get more and more unresponsive as time passes. I was wondering how does the mouse wheel work in the wireless mouse and why does it degrade? How is it possible for a electronic device with no moving parts to behave like this? I thought it's because of dirt & dust but it's not because I tried cleaning the mouse and it didn't change anything.
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Changed the batteries?– xenoidJun 30, 2017 at 17:55
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I've never experienced any issue with mouse wheel using mice for several years (I've a logitech anywhere now). What type of mouse do you have issues with? Do you use them in special environment (high humidity, dust...)?– Máté JuhászJun 30, 2017 at 17:59
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Of course, and I`m still using the old battery in the new mouse– lmkJun 30, 2017 at 17:59
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Unless you bought a cheapo mouse, they ought to last a decade or more. Assume contamination.... though I just realised you said you put the old batteries in the new mouse... :/– TetsujinJun 30, 2017 at 19:40
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1 Answer
They should not be degrading that fast. I've used mice for over 5 years with no issues. I recommend going with another brand or model if your buying the same one every time.
The scroll wheel at the front of the mouse is mounted on a switch mechanism that detects both how much it's rotated and whether you've pressed it (it functions like the central button of a conventional mouse). Rotations of the scroll wheel can be detected in a variety of different ways. Some mice use potentiometers (broadly, variable resistors), similar to the volume control on a radio but able to turn around multiple times. Others use various kinds of rotary switches or optical (rotary) encoders to convert analog wheel movements to digital signals. http://www.explainthatstuff.com/computermouse.html
