{"product_id":"sharp-gp2y0a51sk0f-analog-distance-sensor-2-15cm","title":"Sharp GP2Y0A51SK0F Analog Distance Sensor 2-15cm","description":"\u003cp\u003eThe GP2Y0A51SK0F is the shortest-range Sharp analog distance sensor we carry, featuring a detection range of 0.8″ to 6″ (2 cm to 15 cm).\u003c\/p\u003e\n\u003cp\u003eThe shorter range gives you higher resolution measurements, and the low minimum detection distance makes this sensor great for detecting very close objects. The distance is indicated by an analog voltage, making this sensor very easy to use.\u003c\/p\u003e\n\u003cp\u003eThe Sharp distance sensors are a popular choice for many projects that require accurate distance measurements. This IR sensor is more economical than sonar rangefinders, yet it provides much better performance than other IR alternatives. Interfacing to most microcontrollers is straightforward: the single analog output can be connected to an analog-to-digital converter for taking distance measurements, or the output can be connected to a comparator for threshold detection, making this an adjustable-threshold alternative to digital Sharp sensors. The detection range of this version is approximately 2 cm to 15 cm (0.8″ to 6″).\u003c\/p\u003e\n\u003ch2\u003eFeature summary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 4.5 V to 5.5 V\u003c\/li\u003e\n\u003cli\u003eAverage current consumption: 12 mA (\u003cstrong\u003enote:\u003c\/strong\u003e this sensor draws current in large, short bursts, and the manufacturer recommends putting a 10 µF capacitor or larger across power and ground close to the sensor to stabilize the power supply line)\u003c\/li\u003e\n\u003cli\u003eDistance measuring range: 2 cm to 15 cm (0.8″ to 6″)\u003c\/li\u003e\n\u003cli\u003eOutput type: analog voltage\u003c\/li\u003e\n\u003cli\u003eOutput voltage differential over distance range: 1.65 V (typical)\u003c\/li\u003e\n\u003cli\u003eUpdate period: 16.5 ± 4 ms\u003c\/li\u003e\n\u003cli\u003eSize: 27 mm × 13.2 mm × 14.2 mm (1.06″ × 0.52″ × 0.56″)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.7 g (0.10 oz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 1.06″ × 0.52″ × 0.56″\u003c\/li\u003e\n\u003cli\u003eWeight: 2.7 g\u003c\/li\u003e\n\u003cli\u003eMaximum range: 15 cm\u003c\/li\u003e\n\u003cli\u003eMinimum range: 2 cm\u003c\/li\u003e\n\u003cli\u003eSampling rate: 60 Hz\u003csup\u003e1\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eMinimum operating voltage: 4.5 V\u003c\/li\u003e\n\u003cli\u003eMaximum operating voltage: 5.5 V\u003c\/li\u003e\n\u003cli\u003eSupply current: 12 mA\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput type: analog voltage\u003c\/li\u003e\n\u003cli\u003eOutput voltage differential: 1.65 V\u003csup\u003e3\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003csup\u003e1\u003c\/sup\u003eTypical; can be as low as 50 Hz.\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003csup\u003e2\u003c\/sup\u003eAverage; this sensor draws current in large, short bursts, which is why it is recommended a 10 µF capacitor or larger be placed across power and ground close to the sensor.\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003csup\u003e3\u003c\/sup\u003eOver the range of 2 cm to 15 cm.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eLinearizing the output\u003c\/h2\u003e\n\u003cp\u003eThe relationship between the sensor’s output voltage and the inverse of the measured distance is approximately linear over the sensor’s usable range. The \u003ca href=\"https:\/\/www.pololu.com\/file\/0J845\/GP2Y0A41SK0F.pdf.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGP2Y0A51SK0F datasheet\u003c\/a\u003e (312k pdf) contains a plot of analog output voltage as a function of the inverse of distance to a reflective object. You can use this plot to convert the sensor output voltage to an approximate distance by constructing a best-fit line that relates the inverse of the output voltage (V) to distance (cm).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The GP2Y0A51SK is different from our other \u003ca href=\"\/en-eu\/?q=sharp+analog+distance+sensor\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSharp analog distance sensors with JST PH connectors\u003c\/a\u003e in two important ways: it uses a different 3-pin connector (JST ZH) that is \u003cstrong\u003enot\u003c\/strong\u003e compatible with our JST PH cables or 0.1″ connectors, and the mounting holes are in different locations, so it is \u003cstrong\u003enot\u003c\/strong\u003e compatible with our \u003ca href=\"https:\/\/www.pololu.com\/category\/160\/brackets-for-sharp-distance-sensors\"\u003ebrackets for Sharp distance sensors\u003c\/a\u003e. Like with most of the other Sharp distance sensors we carry, the manufacturer recommends you insert a bypass capacitor of 10 µF or more between Vcc and GND near this sensor to stabilize the power supply line.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":31547778072659,"sku":"POL-2450","price":11.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J6048.1200.jpg?v=1581956673","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/sharp-gp2y0a51sk0f-analog-distance-sensor-2-15cm","provider":"Pimoroni Ltd","version":"1.0","type":"link"}