{"product_id":"4-bit-button-capacitive-touch-sensor-1","title":"4-Bit Button Capacitive Touch Sensor","description":"\u003cp\u003eNo touch-enabled pins on your board? No problem. The \u003cstrong\u003eCJMCU-0401\u003c\/strong\u003e adds \u003cstrong\u003e4 independent capacitive touch inputs\u003c\/strong\u003e to any microcontroller project — no special hardware required. Each channel has a dedicated \u003cstrong\u003edirect output pin\u003c\/strong\u003e and an \u003cstrong\u003eonboard LED indicator\u003c\/strong\u003e, so you can see touch events at a glance.\u003c\/p\u003e\n\n\u003cp\u003eThe capacitive sensing works through glass, ceramic, plastic, and other insulating surfaces — great for embedding touch controls behind fabric or panels in wearable builds.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4 capacitive touch inputs with 4 direct output pins + 4 LED indicators\u003c\/li\u003e\n\u003cli\u003eWorks through glass, ceramic, plastic, and other insulating surfaces\u003c\/li\u003e\n\u003cli\u003eUltra-low power: 11.5µA max, 4µA in low-power mode\u003c\/li\u003e\n\u003cli\u003eAuto-calibration every ~4 seconds when idle\u003c\/li\u003e\n\u003cli\u003eBuilt-in jitter suppression for reliable, noise-resistant sensing\u003c\/li\u003e\n\u003cli\u003eMultiple modes via external configuration pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 2.0V – 5.5V\u003c\/li\u003e\n\u003cli\u003eIC: CJMCU-0401 (capacitive sensing principle)\u003c\/li\u003e\n\u003cli\u003eOutputs: 4 direct digital outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWant touch built right in? The \u003ca href=\"https:\/\/www.tinkertailor.ca\/products\/adafruit-circuit-playground-classic\"\u003eAdafruit Circuit Playground Classic\u003c\/a\u003e has capacitive touch pads onboard.\u003c\/li\u003e\n\u003cli\u003ePrefer pressure-based input? Check out the \u003ca href=\"https:\/\/www.tinkertailor.ca\/products\/pressure-pack-1\"\u003ePressure Pack \u0026amp; Servo\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eBuilding DIY soft sensors? \u003ca href=\"https:\/\/www.tinkertailor.ca\/products\/velostat\"\u003eVelostat\u003c\/a\u003e lets you create custom pressure-sensitive fabric inputs.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tinker Tailor","offers":[{"title":"Default Title","offer_id":50076292645097,"sku":"CAPACITIVE-TOUCH-SENSOR","price":9.75,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/8006\/3209\/files\/Capacitive-Touch-Sensor.webp?v=1780532927","url":"https:\/\/www.tinkertailor.ca\/products\/4-bit-button-capacitive-touch-sensor-1","provider":"Tinker Tailor","version":"1.0","type":"link"}