Home / Parts / Sensors / Infrared / Sharp Analog Distance Sensor 10-80cm Sharp Analog Distance Sensor 10-80cm SKU: 35238 Sharp Analog Distance Sensor 10-80cm$9.95 USD The GP2Y0A21 Sharp distance sensor is a great way to add obstacle avoidance or motion sensing to your robot or any other project. With a detection range of 4″ to 32″ and an analog voltage indicating the distance, this sensor is very easy to use.In stock + Sharp Analog Distance Sensor 10-80cm quantity $9.95 USD- Add to cart SKU: 35238 Categories: Infrared, Parts, Sensors Tag: allAccounts Description Resources More Info Reviews (0) Description The 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. The detection range of this version is approximately 10 cm to 80 cm (4″ to 32″); a plot of distance versus output voltage is shown below. The GP2Y0A21 uses a 3-pin JST connector that works with the 3-pin JST cables for Sharp distance sensors (not included). It is also simple to solder three wires to the sensor where the connector pins are mounted. When looking at the back, the three connections from left to right are power, ground, and the output signal. Or you can use Sharp Sensor Cable if that suits your project better. Please note: The sensor does NOT come with the cable. Features: operating voltage: 4.5 V to 5.5 V average current consumption: 30 mA (typical) distance measuring range: 10 cm to 80 cm (4″ to 32″) output type: analog voltage output voltage differential over distance range: 1.9 V (typical) response time: 38 ± 10 ms package size: 29.5×13.0×13.5 mm (1.16×0.5×0.53″) weight: 3.5g (0.12oz) Linearizing the output The relationship between the sensor’s output voltage and the inverse of the measured distance is approximately linear over the sensor’s usable range. The GP2Y0A21YK data sheet (374k 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). In its simplest form, the linearizing equation can be that the distance to the reflective object is approximately equal to a constant scale factor (~27V*cm) divided by the sensor’s output voltage. Adding a constant distance offset and modifying the scale factor can improve the fit of this line. Resources Sharp - Analog Distance Sensor DocumentationDatasheetSharp - Analog Distance Sensor DatasheetDatasheetSharp Analog Distance Sensor 10-80cm Manual - Nov 7, 2011Documentation More Info Weight 0.0035 kg Dimensions 4.438 × 1.876 × 1.339 cm Reviews There are no reviews yet.Only logged in customers who have purchased this product may leave a review. Related products 330µF 16V Electrolytic CapacitorSKU: CP330uFA nice and tidy 330µF 16V capacitor, ideal for power filtration.$0.35 USD In stockAdd to cart 0.1µF Monolithic CapacitorSKU: CP0.1uF0.1µF monolithic ceramic capacitor with many general purpose electronic applications.$0.25 USD In stockAdd to cart CdS Light Sensitive ResistorSKU: CDSThe CdS is a light sensitive resistor offering a range of 160 ohm to 700k sensitivity.$1.35 USD In stockAdd to cart 1.0µF Monolithic CapacitorSKU: CP1.0uF1.0µF monolithic ceramic capacitor with many general purpose electronic applications.$0.80 USD In stockAdd to cart DPDT Micro Top-mount Slide SwitchSKU: SWT7This micro DPDT switch has the switch lever on the top.$0.50 USD In stockAdd to cart
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