{"title":"Magnetic Rotary Encoder - 128 P/R (Quadrature) w/ Switch - SparkFun Electronics","handle":"magnetic-rotary-encoder-128-p-r-quadrature-w-switch-sparkfun-electronics-com-27884","url":"/products/magnetic-rotary-encoder-128-p-r-quadrature-w-switch-sparkfun-electronics-com-27884","description":"The CS19D128B is a high-quality magnetic rotary encoder from Cooka, offering smooth, low-friction rotation with 128 pulses per revolution and no detent positions. Pressing the shaft activates a built-in push switch.\n\nUnlike mechanical encoders, the magnetic sensing mechanism allows this encoder to withstand a far greater number of rotations before experiencing wear. It provides standard 2-bit quadrature output (A and B channels) and works with both 3.3 V and 5 V systems.\n\nKey Features\n\n\nMagnetic Sensing – No mechanical contacts, greatly extending lifespan\n\n128 PPR – High resolution with smooth, detent-free rotation\n\nBuilt-in Switch – Push-to-click function on the shaft\n\nQuadrature Output – A/B square wave output for direction and position sensing\n\nDual Voltage – Compatible with 3.3 V and 5 V logic\n\n6 mm Shaft – Standard shaft diameter (not compatible with ¼″ knobs)\n\n\nIdeal For\n\nMenu navigation and user interface controls\nPrecision dial input for microcontroller projects\nAudio equipment and synthesiser controls\nAny application requiring smooth, continuous rotation sensing\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":134,"title":"Default Title","sku":"SF-COM-27884","mpn":"COM-27884","price":39.0,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":107,"option1":"Default Title"}]}