To make him happy I salvaged one from an old optical mouse I had. This was another midnight project. This is a quick view of the circuit board of my old Chinese usb optical mouse. As you can see, ...

Disassembling the mouse you can get two optical encoders plus four infrared emitter/detector pairs. Then you can reassemble your new sensors into a quadrature incremental optical encoder.

The mouse is based on the PMW3360 sensor, ... There’s also specialised code to read the wheel encoder from ... like the Wheel Mouse Optical and the Intellimouse 1.3.

Logitech is upping the ante in the battle for optical-mouse supremacy with its latest Wheel Mouse Optical. The mouse has a tiny red light and an optical sensor instead of the traditional ball ...

Microsoft's Wheel Mouse Optical is on sale for just $15.93 over at Amazon. Maybe we're still jet lagged, but shouldn't they have named it "Optical Wheel ...

It would be interesting to build an encoder from a wireless computer mouse; and perhaps even more interesting, using the sensor from a digital caliper, as most of them have an I 2 C interface. But ...

The scroll wheel on Razer's new mouse appears to take customization to a new level. ... That includes Razer's Pro 30K optical sensor, found in many of Razer's $100-plus mice.

"I have now had to have Apple replace 10 ? that's right 10 ? wired Mighty Mouse devices for the failure of the scroll wheel. They seem to fail over a period as long as months to just a couple of days.