{"product_id":"qtr-8a-reflectance-sensor-array-8-channel-line-following-line-tracking-sensor-module","title":"8 Channel Reflectance Sensor Array Module Qtr-8a","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe \u003cstrong\u003eQTR-8A reflectance \u003ca href=\"https:\/\/hallroad.org\/gy-amg8833-grid-eye-infrared-array-sensors-ir-thermal-camera-breakout-module-in-pakistan.html\" target=\"_blank\"\u003esensor array\u003c\/a\u003e\u003c\/strong\u003e is intended as a line sensor, but it can be used as a general-purpose proximity or \u003cstrong\u003ereflectance sensor\u003c\/strong\u003e. The \u003cstrong\u003earray \u003ca href=\"\/products\/ir-infrared-obstacle-avoidance-sensor-module-in-pakistan\" rel=\"noopener noreferrer\" title=\"Ir infrared obstacle avoidance sensor module in pakistan – digilog.pk\" aria-label=\"Visit a webpage about Ir infrared obstacle avoidance sensor module in pakistan – digilog.pk\" target=\"_blank\"\u003emodule \u003c\/a\u003e\u003c\/strong\u003eis a convenient carrier for eight IR emitter and receiver (phototransistor) pairs evenly spaced at intervals of 0.375″ (9.525mm). Each \u003cstrong\u003ephototransistor \u003c\/strong\u003eis connected to a pull-up resistor to form a \u003cstrong\u003evoltage divider\u003c\/strong\u003e that produces an analogue voltage output between 0V and VIN (which is typically 5V) as a function of the reflected IR. The lower output voltage is an indication of greater reflection.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures Of Reflectance Sensor Array 8 channel Line Following Line Tracking Sensor Module QTR 8A:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eNo analogue-to-digital converter (ADC) is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eImproved sensitivity over voltage-divider analogue output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eParallel reading of multiple sensors is possible with most microcontrollers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eParallel reading allows optimized use of LED power enable the option\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eOperating voltage: 3.3-5.0 V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSupply current: 100 mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eOutput format: 8 digital I\/O-compatible signals that can be read as a timed high pulse\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eOptimal sensing distance: 0.125\" (3 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eMaximum recommended sensing distance: 0.375\" (9.5 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications Of QTR-8A Reflectance Sensor Array:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 2.95″ x 0.5″ x 0.125″ (without header pins installed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eOperating voltage:\u003c\/strong\u003e 3.3-5.0?V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eSupply current: \u003c\/strong\u003e100mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eOutput format:\u003c\/strong\u003e 8 digital I\/O-compatible signals that can be read as a timed high pulse\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eOptimal sensing distance: \u003c\/strong\u003e0.125″ (3mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eMaximum recommended sensing distance:\u003c\/strong\u003e 0.375″ (9.5mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eWeight without header pins:\u003c\/strong\u003e 0.11oz (3.09g)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cstrong\u003eWays Of Interface With QTR-8A Outputs:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eUse a microcontroller?s analogue-to-digital converter (ADC) to measure the voltages.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eUse a comparator with an adjustable threshold to convert each analogue voltage into a digital (i.e. black\/white) signal that can be read by the digital I\/O line of a microcontroller.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eConnect each output directly to a digital I\/O line of a microcontroller and rely on its internal comparator.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis last method will work if you are able to get high reflectance from your white surface as depicted in the left image, but will probably fail if you have a lower-reflectance signal profile like the one on the right.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e1 x Reflectance Sensor Array QTR-8A\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eBest Online Shopping website for 8 Channel Reflectance Sensor Array \u003ca href=\"\/products\/digital-temperature-and-humidity-sensor-dht22-in-pakistan\" rel=\"noopener noreferrer\" title=\"Digital temperature and humidity sensor dht22 in pakistan – digilog.pk\" aria-label=\"Visit a webpage about Digital temperature and humidity sensor dht22 in pakistan – digilog.pk\" target=\"_blank\"\u003eModule\u003c\/a\u003e QTR-8A IR Sensor Array Arduino in cheap price in Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Multan, Quetta, Faisalabad and all over Pakistan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\" data-original=\"https:\/\/hallroad.digilog.pk\/images\/watermarked\/detailed\/31\/8_Channel_Reflectance_Sensor_Array_Module_QTR-8A_In_Lahore_Karachi_Islamabad_Peshawar_Quetta_Mardan_Multan_Sibbi_Hyderabad_Faisalabad_Rawalpindi_Pakistan__1_.jpg\" alt=\"8 Channel Reflectance Sensor Array Module Qtr-8a\" loading=\"lazy\" data-files=\"8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\"\u003e\u003cimg src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\" data-original=\"https:\/\/hallroad.digilog.pk\/images\/watermarked\/detailed\/31\/8_Channel_Reflectance_Sensor_Array_Module_QTR-8A_In_Lahore_Karachi_Islamabad_Peshawar_Quetta_Mardan_Multan_Sibbi_Hyderabad_Faisalabad_Rawalpindi_Pakistan__2_.jpg\" alt=\"8 Channel Reflectance Sensor Array Module Qtr-8a\" loading=\"lazy\" data-files=\"8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\"\u003e\u003cimg src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\" data-original=\"https:\/\/hallroad.digilog.pk\/images\/watermarked\/detailed\/31\/8_Channel_Reflectance_Sensor_Array_Module_QTR-8A_In_Lahore_Karachi_Islamabad_Peshawar_Quetta_Mardan_Multan_Sibbi_Hyderabad_Faisalabad_Pakistan__1_.jpg\" alt=\"8 Channel Reflectance Sensor Array Module Qtr-8a\" loading=\"lazy\" data-files=\"8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\"\u003e\u003cimg src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\" data-original=\"https:\/\/hallroad.digilog.pk\/images\/watermarked\/detailed\/31\/8_Channel_Reflectance_Sensor_Array_Module_QTR-8A_In_Lahore_Karachi_Islamabad_Peshawar_Quetta_Mardan_Multan_Sibbi_Hyderabad_Faisalabad_Pakistan__3_.JPG\" alt=\"8 Channel Reflectance Sensor Array Module Qtr-8a\" loading=\"lazy\" data-files=\"8-Channel-Reflectance-Sensor-Array-Module-QTR-8A-In-Lahore-Karachi-Islamabad-Peshawar-Quetta-Mardan-Multan-Sibbi.jpg\"\u003e\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":43962430652481,"sku":"B112,krt44,IMP50,Th25,A","price":500.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/2805\/1777\/files\/8ChannelReflectanceSensorArrayModuleQTR-8A1.jpg?v=1779537214","url":"https:\/\/stem.pk\/products\/qtr-8a-reflectance-sensor-array-8-channel-line-following-line-tracking-sensor-module","provider":"stem.pk","version":"1.0","type":"link"}