How to order Contact us Distributors Reviews
Register / Login

Select currency

If you'd like to view estimated pricing in other currencies then please select a currency below below.

GBP USD EUR JPY AUD NOK CHF NZD CAD

Please note:

  • Currency conversions are estimates and for information only
  • Your order will be billed in GBP
  • All prices exclude VAT / other local sales taxes
  • Shipping calculated during checkout


Pololu Digital Distance Sensor – 100cm

by Pololu
An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor An image of Pololu Digital Distance Sensor

This compact sensor is a great way to quickly detect the presence of nearby objects.

As long as the sensor is enabled, it takes continuous distance measurements and uses a single digital output to indicate if it detects an object within its detection range. The output is driven low when the sensor detects an object; otherwise, the output is high.

It works over an input voltage range of 3.0 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards.

Please note that this sensor will only tell you if there is an object within the detection range along its line of sight, not how far away it is. As shown in the diagram above, there is hysteresis at the maximum range threshold to help ensure a clean transition as objects cross the threshold.

Unlike simpler optical sensors that use the intensity of reflected light to detect objects, this sensor uses a short-range lidar module to precisely measure how long it takes for emitted pulses of infrared, eye-safe laser light to reach the nearest object and be reflected back. This allows the sensor performance to be largely independent of object reflectivity and ambient lighting conditions (though the range can be reduced for extremely low-reflectance objects).

Some example applications include:

  • break-beam sensor or photogate alternative
  • non-contact bumper or obstacle detector for a robot
  • non-contact interface element for activating a device or process
  • a counter or timer of objects as they pass by

Specifications

  • Operating voltage: 3.0 V to 5.5 V
  • Current consumption: 30 mA (typical) when enabled, 0.4 mA when disabled
  • Field of view (FOV): 15° typical; can vary with object reflectance and ambient conditions
  • Output type: digital signal (low when detecting an object, high otherwise)
  • Dimensions: 0.85″ × 0.35″ × 0.122″ (21.6 × 8.9 × 3.1 mm): see the dimension diagram for more information
  • Weight: 0.014 oz (0.4 g)

Using the sensor

Important note: This product might ship with a protective liner covering the sensor IC. The liner must be removed for proper sensing performance.

Three connections are necessary to use this module: VIN, GND, and OUT. These pins are accessible through a row of 0.1″-pitch through holes, which work with standard 0.1″ (2.54 mm) male headers and 0.1″ female headers (available separately). The VIN pin should be connected to a 3 V to 5.5 V source, and GND should be connected to 0 volts. The OUT pin drives low (0 V) when an object is being detected and it drives high (to the VIN level) when an object is not being detected. It is weakly pulled high when the sensor is disabled or waiting for its first reading to complete after power-up. A red LED on the back side of the board also lights whenever an object is detected.

The board has an optional ENABLE pin that can be driven low to put it into a low-power state that consumes approximately 0.4 mA. This pin can be accessed through a via or its neighboring surface-mount pad on the back side labeled “EN” on the silkscreen. The ENABLE pin is pulled up to VIN, enabling the sensor by default.

The board features four surface-mount configuration jumpers that determine its operation mode. Different versions of the Pololu Digital Distance sensors ship with the appropriate jumpers pre-populated with 0 Ω resistors. These resistors can be desoldered from the populated spots or solder bridges can be added across the unpopulated spots to convert one sensor version into another. The table in the section below shows the jumper settings for the different versions.

The board has one mounting hole intended for use with #2 or M2 screws.

The Pololu Digital Distance Sensor family

We have several different versions of Pololu Digital Distance Sensors, all with the same dimensions and pinout:

Output type Sensor Maximum range Resolution Minimum update rate Jumper settings (4321)
digital
(does not provide distance measurement)
POL-4050: Digital output, 5cm 5 cm - 145 Hz 0000
POL-4052: Digital output, 10cm 10 cm - 115 Hz 0010
POL-4054: Digital output, 15cm 15 cm - 95 Hz 0100
POL-4066: Digital output, 25cm 25 cm - 100 Hz 0000
POL-4067: Digital output, 50cm 50 cm - 100 Hz 0001
POL-4069: Digital output, 100cm 100 cm - 100 Hz 0011
POL-4077: Digital output, 200cm 200 cm - 30 Hz 1011
pulse width
(provides distance measurement)
POL-4064: Pulse width output, 50cm max 50 cm 3 mm 50 Hz 1110
POL-4071: Pulse width output, 130cm max 130 cm 1 mm 100 Hz 0101
POL-4079: Pulse width output, 300cm max 300 cm 2 mm 30 Hz 1101

Reviews

User photos

This compact sensor is a great way to quickly detect the presence of nearby objects.

POL-4069

Product options

  • 5 cm Out of stock
  • 10 cm Out of stock
  • 15cm Out of stock
  • 25cm Out of stock
  • 50cm Out of stock
  • 100cm Out of stock
  • 200cm Out of stock

You must register for an account and be logged in to view pricing or place an order on the Pimoroni Wholesale store.

If you represent a school or university, a business, or reseller of Maker products then you can sign up for a wholesale account.

If you already have an account you can login to your account here.

Alternatively the easiest way to get your hands on the products we offer is to order them directly from our customer facing online store.

SKU
POL-4069
EAN
0769894019757
Brand
Pololu
Stock available
0 units
Backorder not allowed on this product
Weight
2g
Size
100cm

Video introduction

Guides & tutorials

Search

 

Region

Your search returned no results.

Subscribe

We'll keep you up to date with new product launches!

The good ship

We've been sailing the Maker seas offering our wares since 2012.

  • read about our history
  • what our customers say
  • find a local distributor
  • contact our business team

We manufacture all of our products locally at our workshop in Sheffield, UK

Under one roof

Pimoroni are your one-stop shop for bulk and education purchasing of Raspberry Pi, Pimoroni, micro:bit, Adafruit, Sparkfun, and many other brands.

If you have any questions about what we offer then drop us a line.

Pimoroni Ltd

Unit 1, Parkway Business Park,
Parkway Drive,
Sheffield,
S9 4WN,
United Kingdom

Registered in England and Wales:
Company №: 07510759
VAT Reg №: GB 140 8707 21