Sensor Distancia Sharp Infrarojo 150cm

$1.414,80

18 cuotas de $164,19
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Incluye cable adaptador. 

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 20 cm to 150 cm (8¿ to 60¿).

The GP2Y0A02 uses a 3-pin JST PH connector that works with our 3-pin JST PH cables for Sharp distance sensors (not included); the top picture on the right shows a shorter-range Sharp analog distance sensor with one of these cables. These cables have 3-pin JST connectors on one end and are available with pre-crimped male pinspre-crimped female pins, and with unterminated wires on the other end. It is also possible to solder three wires to the sensor where the connector pins are mounted (see the lower picture to the right). When looking at the back, the three connections from left to right are power, ground, and the output signal.

Feature summary

  • Operating voltage: 4.5 V to 5.5 V
  • Average current consumption: 33 mA (note: 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)
  • Distance measuring range: 20 cm to 150 cm (8¿ to 60¿)
  • Output type: analog voltage
  • Output voltage differential over distance range: 2.05 V (typical)
  • Update period: 38 ± 10 ms
  • Size: 44.5 mm × 18.9 mm × 21.6 mm (1.75¿ × 0.75¿ × 0.85¿)
  • Weight: 5 g (0.18 oz)

Note: The GP2Y0A02YK0F model is a lead-free, RoHS-compliant version of the Sharp GP2Y0A02 Distance Sensor. The manufacturer recommends you insert a bypass capacitor of 10 µF or more between Vcc and GND near this sensor to stabilize your power supply line.

 

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. TheGP2Y0A02YK datasheet (703k 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).