{"product_id":"mpr121-12-key-capacitive-touch-sensor-gator-breakout-stemma-qt-qwiic","title":"MPR121 12-Key Capacitive Touch Sensor Gator Breakout - Stemma QT Qwiic","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eMPR121 12-Key Capacitive Touch Sensor Gator Breakout - Stemma QTQwiic\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMPR121 12-Key Capacitive Touch Sensor Gator Breakout - Stemma QT Qwiic\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAdd lots of touch sensors to your next microcontroller project with this easy-to-use 12-channel capacitive touch sensor breakout board, starring the MPR121. This chip can handle up to 12 individual touchpads with plug-and-play STEMMA QT connector and large alligator\/croc-clip friendly pads, its a no-solder solution to capacitive touch sensing.The MPR121 has support for reading data over I2C, which can be implemented with nearly any microcontroller. You can select one of 2 addresses with the ADDR pin (solder it close for the alternative address), for a total of 24 capacitive touch pads on one I2C 2-wire bus. Using this chip is a lot easier than doing the capacitive sensing with analog inputs: it handles all the filtering for you and can be configured for more\/less sensitivity.This sensor comes as a tiny hard-to-solder chip so we put it onto a breakout board for you. Since it's a 3V-only chip, we added a 3V regulator and I2C level shifting so it's safe to use with any 3V or 5V microcontroller\/processor like Arduino. We even added an LED onto the IRQ line so it will blink when touches are detected, making debugging by sight a bit easier on you.To make using it as easy as possible, we’ve put the MPR121 on a breakout PCB in our Stemma QT form factor with a sprinkle of support circuitry to give you options when testing. You can either use a breadboard or the SparkFun qwiic compatible STEMMA QT connectors, and compatibility with 5V voltage levels as commonly found on Arduinos, as well as 3.3V logic used by many other boards like the Raspberry Pi or our Feathers. QT Cable is not included, but we have a variety in the shop for quick plug-and-play support.Getting started is a breeze with our Arduino and CircuitPython\/Python libraries and tutorials. Product Dimensions: 51.0mm x 25.2mm x 4.5mm \/ 2.0 x 1.0 x 0.2\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantees\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE standard shipping within the United States (3–6 business days)\u003c\/li\u003e\n\u003cli\u003e✅ 100% money-back guarantee for lost or damaged items\u003c\/li\u003e\n\u003cli\u003e✅ Secure checkout with encrypted payment processing\u003c\/li\u003e\n\u003cli\u003e✅ Shipping via UPS, FedEx, and USPS\u003c\/li\u003e\n\u003cli\u003e✅ Ships to lower 48 states only (no PO Boxes \/ APO \/ FPO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ 30-day hassle-free returns\u003c\/li\u003e\n\u003cli\u003e✅ Items must be unused and in original packaging\u003c\/li\u003e\n\u003cli\u003e✅ Full refund if item is not delivered\u003c\/li\u003e\n\u003cli\u003e✅ Guaranteed delivery within 6–7 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePayment Methods\u003c\/h3\u003e\n\u003cp\u003e✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/p\u003e\n\u003ch3\u003eCustomer Support\u003c\/h3\u003e\n\u003cp style=\"text-align:left;\"\u003e✅ Questions? Contact us at \u003cstrong\u003eSupport@GiftAbay.com\u003c\/strong\u003e\u003cbr\u003eWe respond within 24 hours on business days.\u003c\/p\u003e\n\u003cdiv class=\"seo-data\"\u003e\n\u003cp\u003e\u003cstrong\u003eSEO Title:\u003c\/strong\u003e MPR121 12-Key Capacitive Touch Sensor Gator Breakout - Stemma QTQwiic\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKeywords:\u003c\/strong\u003e mpr121, 12key, capacitive, touch, sensor, gator, breakout, stemma, industrialscientific, industrialelectrical, sensors, proximitysensors\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Industrial \u0026amp; Scientific\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubcategories:\u003c\/strong\u003e Industrial Electrical, Sensors, Proximity Sensors, Capacitive\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Adafruit Industries","offers":[{"title":"Default Title","offer_id":44642408398893,"sku":"PGABL1406675","price":22.42,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/6067\/7677\/files\/714B2Y1fqTL._AC_SL1024.jpg?v=1772054370","url":"https:\/\/prosupply.giftabay.com\/products\/mpr121-12-key-capacitive-touch-sensor-gator-breakout-stemma-qt-qwiic","provider":"ProSupply.GiftAbay","version":"1.0","type":"link"}