Sensor Module with Sharp GP2Y0A60SZLF Analog Distance 10-150cm, 3V

Overview

Sharp’s distance sensors are a popular choice for many projects that require accurate distance measurements. This particular sensor is small and affordable, making it an attractive alternative to sonar rangefinders, while its wide sensing range and resistance to interference from ambient IR set it apart from other IR distance sensors.

Pololu Carrier with Sharp GP2Y0A60SZLF Analog Distance Sensor 10-150cm, front view with dimensions.

Interfacing to most microcontrollers is straightforward: the single analog output, OUT, 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 sensor automatically updates the output approximately every 16 ms. The enable pin, EN, can be driven low to disable the IR emitter and put the sensor into a low-current stand-by mode. This pin is pulled high on the carrier board through a 10 kΩ pull-up resistor to enable the sensor by default.

5V and 3V versions

The GP2Y0A60SZ supports two operating modes: 5V and 3V. In 5V mode, the recommended operating voltage is 2.7 V to 5.5 V, and the output voltage differential over the full distance range is approximately 3 V, varying from around 3.6 V at 10 cm to 0.6 V at 150 cm. In 3V mode, the recommended operating voltage is 2.7 V to 3.6 V, and the output voltage differential over the full distance range is approximately 1.6 V, varying from around 1.9 V at 10 cm to 0.3 V at 150 cm. The GP2Y0A60SZ datasheet (701k pdf) contains a plot of analog output voltage as a function of the distance for the two modes.

Our GP2Y0A60 carrier board is available configured for 3V mode:

Feature summary

• Operating voltage:

○ 5V version: 2.7 V to 5.5 V

○ 3V version: 2.7 V to 3.6 V

• Average current consumption: 33 mA (typical)

• Distance measuring range: 10 cm to 150 cm (4" to 60")

• Output type: analog voltage

• Output voltage differential over distance range:

○ 5V version: 3.0 V (typical)

○ 3V version: 1.6 V (typical)

• Update period: 16.5 ± 4 ms

• Enable pin can optionally be used to disable the emitter and save power

• Size without header pins: 33 mm x 10.4 mm x 10.2 mm (1.3" x 0.41" x 0.4")

• Weight without header pins: 2.5 g (0.09 oz)

Schematic diagram

The above schematic shows the additional components the carrier board incorporates to make the GP2Y0A60SZLF easier to use.

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. A graph of the output voltage over the usable distance to a reflective object can be found in the GP2Y0A60SZLF datasheet (701k pdf). You can 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).

Alternative Sharp distance sensors

With regard to performance, this GP2Y0A60SZ is most similar to the Sharp GP2Y0A02YK0F analog distance sensor (20 - 150 cm), but the GP2Y0A60SZ offers a lower minimum detection distance and more than twice the sampling rate in a much smaller package:

Sharp GP2Y0A02YK0F Sensor 20-150cm (left) next to Pololu Carrier with Sharp GP2Y0A60SZLF Sensor 10-150cm (right)

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We also carry three digital Sharp distance sensors that have lower minimum detection distances, quicker response times, lower current draws, and much smaller packages; they are available with a 5 cm, 10 cm, or 15 cm maximum detection distance and simply tell you if something is in their detection range, not how far away it is.

A variety of Sharp distance sensors

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Specifications

Dimensions

General specifications

Notes:

1 Without included optional headers. If the mounting hole is not needed, that part of the board can be cut off to decrease the length by 0.3".
2 Without included optional headers.
3 Typical; can be as low as 50 Hz.
4 Average; this sensor draws current in large, short bursts.

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