Those tiny switches in the mouse may be rated for 50 million clicks or more, but your fingers may wear out earlier than that. Trust us-mouse arm and/or hand fatigue is not fun at all. If you have never experienced this kind of discomfort, try to imagine that you cannot click or move the mouse without extreme discomfort.
This year’s Hackaday Awards, [BinSun] Designed a capacitive mouse for friends with ALSIt does not use micro switches, but uses touch sensors to detect left and right clicks, and uses LEDs to indicate when a click has occurred. This makes us think that haptic feedback may be cool, but it may quickly become obsolete, and even worse, after a while you may get used to it and no longer feel it.
This mouse will be a good choice for people with mobility problems due to any disease (ALS, arthritis, trigger finger or carpal tunnel/cubital tunnel syndrome). Anyone who wants to use the mouse more secretly will also benefit, such as in a library, small shared space or late at night. The only disadvantage we can see is that you either have to get used to hovering your fingers or learn to place them outside of capacitive buttons. Otherwise, you will start them more often than you really want.
If you want to build one of them, you will find a good set of instructions on IO, including the minor modifications needed to make the TTP223 capacitive module sensitive enough to detect the presence of a finger. All you really need to do is bridge several pads, add a capacitor and remove the SMD LED. [Bin Sun] Said this is an ongoing project. At this point, he has involved a few Beta testers and plans to make a dedicated PCB soon. Take a break and do a few short demonstrations.
Of course, the right mouse can save your limbs. Mix different types of mice together, and you may be able to save your crops from an elephant attack.