The ADNS2620 is an easy to use entry level, small form factor optical mouse sensor. This little guy is used to implement a non-mechanical tracking engine for computer mice this allows for more compact and cost-effective optical mouse designs. The ADNS2620 is based on optical navigation technology, which measures changes in position by optically acquiring sequential surface images (frames) and mathematically determining the direction and magnitude of movement. https://elecena.pl/product/4628077/adns2620-optical-mouse-sensor-ic 2014-05-23 https://elecena.pl/product/4628077/adns2620-optical-mouse-sensor-ic 2014-07-13