{"title":"SparkFun Capacitive Touch Breakout - AT42QT1011","handle":"sparkfun-capacitive-touch-breakout-at42qt1011","url":"/products/sparkfun-capacitive-touch-breakout-at42qt1011","description":"The SparkFun Capacitive Touch Breakout provides a single momentary touch button using the AT42QT1011 capacitive sense chip. Simply supply 1.8–5 V and ground — the chip handles all touch monitoring and outputs a digital high signal when a touch is detected, low when released.\n\nUnlike the AT42QT1010, this variant has no internal time-out, meaning the output stays high for as long as a touch is held. A PAD pin is broken out for connecting an external electrode to create custom touch surfaces.\n\nKey Features\n\n\nSingle Capacitive Touch Button – Momentary digital output (high when touched)\n\nNo Time-Out – Output remains high for the full duration of a touch\n\nWide Voltage Range – Operates from 1.8–5 V\n\nExternal Electrode Support – PAD pin for custom touch surfaces\n\nSimple Digital I/O – No library or complex setup required\n\n\nSpecifications\n\n\nIC – AT42QT1011\n\nOperating Voltage – 1.8–5 V\n\nOutput – Digital high (touched) / low (released)\n\nTime-Out – None (output held indefinitely during touch)\n\n\nIdeal For\n\nButton-free user interfaces\nInteractive art and installations\nProximity-triggered projects (with external electrode modification)\nArduino and microcontroller input\n\n\nPackage Contents\n\n1× SparkFun Capacitive Touch Breakout (AT42QT1011)\n\n\n\nTip: For proximity sensing (triggering without direct contact), try replacing the 10 nF capacitor at C2 with a 100 nF capacitor and using an external electrode. See the hookup guide for details.\n\n\nResources\n\nHookup Guide\nSchematic (PDF)\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":8295,"title":"Default Title","sku":"SF-SEN-14520","price":10.58,"on_sale":false,"in_stock":true,"available_quantity":89,"option1":"Default Title"}]}