{"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":10.9,"on_sale":false,"in_stock":true,"available_quantity":372,"option1":"Default Title"}],"documents":[{"title":"AT42QT101X Capacitive Touch Breakout Schematic","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDDQEBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--2700bc788b1821f2379c4fa9c822bff2aa1bebb5/AT42QT101X_Capacitive_Touch_Breakout.pdf","link":false,"file_extension":"PDF","file_size":63737,"description":"Circuit schematic for the AT42QT101X capacitive touch breakout board"},{"title":"AT42QT1011 Datasheet","type":"datasheet","type_label":"Datasheet","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDEAEBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--f8f4e53ae2187885abe90d6183667db2b0ba2e78/AT42QT1011_DS.pdf","link":false,"file_extension":"PDF","file_size":262176,"description":"Manufacturer datasheet for the AT42QT1011 capacitive touch sensor IC"},{"title":"AT42QT1010 Capacitive Touch Breakout Schematic","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDEgEBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--761c5d8b790d0b72c4df4c791336797e6cf08a38/AT42QT1010_Capacitive_Touch_Breakout.pdf","link":false,"file_extension":"PDF","file_size":41778,"description":"Circuit schematic for the AT42QT1010 capacitive touch breakout board"},{"title":"AT42QT1010 Capacitive Touch Breakout Eagle Files","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDEwEBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--155258080f06513bc3a036e55958456654a0b3d4/AT42QT1010_Capacitive_Touch_Breakout.zip","link":false,"file_extension":"ZIP","file_size":78525,"description":"Eagle PCB design files for the AT42QT1010 capacitive touch breakout"},{"title":"AT42QT1010 Datasheet","type":"datasheet","type_label":"Datasheet","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDFgEBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--27e04dbd6e03e1d76a865517d9ac415f2b0247ed/AT42QT1010_Datasheet.pdf","link":false,"file_extension":"PDF","file_size":283603,"description":"Manufacturer datasheet for the AT42QT1010 capacitive touch sensor IC"},{"title":"AT42QT101X Capacitive Touch Breakout Eagle Files","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDFwEBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--e24a633e745495e9b35bad6d8d1c806796e8ce62/AT42QT101X_Capacitive_Touch_Breakout_1.zip","link":false,"file_extension":"ZIP","file_size":84237,"description":"Eagle PCB design files for the AT42QT101X capacitive touch breakout"},{"title":"Supplier page — sparkfun.com","type":"supplier_description","type_label":"Supplier Description","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDKBkBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--12af55069672a143164d41c526c82f3975261c9f/sparkfun-capacitive-touch-breakout-at42qt1011-sparkfun-com-2026-05-13.pdf","link":false,"file_extension":"PDF","file_size":640283,"description":"Snapshot of https://www.sparkfun.com/sparkfun-capacitive-touch-breakout-at42qt1011.html (captured 13 May 2026)"}]}