{"product_id":"qti-sensor","title":"QTI Sensor","description":"\u003ch5 class=\"ui-accordion-header ui-helper-reset ui-state-default ui-state-active ui-corner-top\" role=\"tab\"\u003eQTI Sensor Overview:\u003c\/h5\u003e\n\u003cdiv id=\"overview\" class=\"tabbed overview ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content-active\" role=\"tabpanel\"\u003e\n\u003cdiv class=\"field-body\"\u003e\n\u003cp\u003eThe QTI Sensor is a close-proximity infrared emitter\/receiver that is able to differentiate between a dark surface) with low IR reflectivity) and a light surface (with high IR reflectivity). These little sensors can be very handy for line following, maze navigation, or sensing the outer rim of a SumoBot ring. Wiring options allow it to be used digitally for fast black\/white line following, or as an analog sensor to detect different shades of gray. A daylight filter is built into the sensor.\u003c\/p\u003e\n\u003cp\u003eWhat does QTI stand for?\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eQ = Charge\u003c\/li\u003e\n\u003cli\u003eT = Transfer\u003c\/li\u003e\n\u003cli\u003eI = Infrared\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen your microcontroller measures the time it takes for the QTI's capacitor to decay, it's measuring a rate of charge transfer through an infrared phototransistor. This rate indicates how much infrared is reflecting off a nearby surface.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan class=\"forte\"\u003eKey Features:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCapable of analog or digital outputs\u003c\/li\u003e\n\u003cli\u003eNo-contact surface sensing\u003c\/li\u003e\n\u003cli\u003eUnfocused for sensing diffused surfaces\u003c\/li\u003e\n\u003cli\u003eDaylight filter on sensor\u003c\/li\u003e\n\u003cli\u003eEasy to interface with any Parallax microcontroller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 class=\"ui-accordion-header ui-helper-reset ui-state-active ui-corner-top\" role=\"tab\"\u003eQTI Sensor Details:\u003c\/h5\u003e\n\u003cdiv id=\"details\" class=\"tabbed details ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content-active\" role=\"tabpanel\"\u003e\n\u003cdiv class=\"field-tech\"\u003e\n\u003cul\u003e\n\u003cli\u003ePower requirements: 5 VDC\u003c\/li\u003e\n\u003cli\u003eCommunication: Analog output of capacitor decay time depending on level of infrared reflectivity\u003c\/li\u003e\n\u003cli\u003eDimensions: 1.25 x 0.37 in (31.7 x 9.4 mm)\u003c\/li\u003e\n\u003cli\u003eOperating temp range: -40 to +185 °F (-40 to +85 °C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"details\" class=\"tabbed details ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content-active\" role=\"tabpanel\"\u003e\n\u003cdiv class=\"field-tech\"\u003e\n\u003ch4\u003eResource Links\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"http:\/\/learn.parallax.com\/KickStart\/555-27401\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eQTI KickStart – PBASIC, Arduino, and Propeller Spin examples\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.parallax.com\/courses\/boe-bot-line-following-with-qti-sensors-project\/\" rel=\"noopener\" target=\"_blank\"\u003eBoe-Bot Line Following with 4 QTI Sensors – BASIC Stamp Project\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":53397217739061,"sku":"555-27401","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/6307\/2821\/files\/9d0a03bc-20240403_141027.jpg?v=1787781813","url":"https:\/\/shop.parallax.com\/products\/qti-sensor","provider":"Parallax Inc","version":"1.0","type":"link"}