Friday, April 21, 2017

Shooting Laser to measure distance



Intro

This time-of-flight sensor is a laser distance sensor, that emits a 940nm laser. It can measure distance up to 125cm quite accurate. Adafruit delivers a ready-to-use library and a functional example you should try.

Wiring


The sensor is connected via I2C. So you have to use pin 4 and 5 on the Arduino Uno/Nano (other Arduinos may have different pins for I2C). It works with 3.3 volts. But since the breakoutboard has a voltage regulator implemented, you can connect it also to 5 volt.

Video


Casing

=> work in progress

Where to buy?
You can find it on eBay, if you search for "Time of flight"
Or directly from Amazon: Time of flight
Arduino Nano

3 comments:

  1. what is the minimum accurate distance it can measure

    ReplyDelete
  2. I read that Post and got it fine and informative. entfernungsrechner

    ReplyDelete
  3. These are a little over $3 US from Aliexpress. Search for Time Of Flight sensors. It isn't found if you search for the part number.

    ReplyDelete