Another LiDAR option?

Comments

• Publison Posts: 12,366

  2017-08-17 16:15 edited 2017-08-17 16:16

  Looks like an affordable sensor. Might work on the ELEV8 for landing. Two meter would not work well for a forward pointing obstacle avoidance for that craft.
  
  I do like the new Mini Laser Range finder that Parallax has:
  
  https://www.parallax.com/product/28055
  
  100 meters and water proof. Can be mounted on a servo for 2d scanning.
• Seairth Posts: 2,474

  2017-08-17 17:15

  Publison wrote: »

  Looks like an affordable sensor. Might work on the ELEV8 for landing. Two meter would not work well for a forward pointing obstacle avoidance for that craft.
  
  I do like the new Mini Laser Range finder that Parallax has:
  
  https://www.parallax.com/product/28055
  
  100 meters and water proof. Can be mounted on a servo for 2d scanning.

  
  I like it too, but the price puts it out of my comfort range as a hobbyist. Of course, those two products are a bit of an apples-to-oranges comparison. I wonder if there's a combination where the two could be complimentary (maybe one of the LW20s and several of the mappydots).
• xanadu Posts: 3,347

  2017-08-17 20:44

  Nice find, I signed up for one.
  
  
  
  
  
  
• GordonMcComb Posts: 3,366

  2017-08-17 21:17

  Looks like the Parallax LD20 produces an X-Y map (in which a 3D depth can be derived for the mapped area), which is going to add to cost. Adafruit has a breakout board based on the VL53L0X , and is $10 cheaper. Both they and and Sparkfun have <$15 versions of this sensor with the shorter range. Depending on the speed you need, the cheaper 1D sensors could be used to create an X-Y table, and from there, a 3D depth map.
  
  For close range, a laser-based vision system employing diffraction gratings could provide a coarse 2D map. It would cost maybe $10 in parts (but heavy investment in software).
• DaveJenson Posts: 385

  2017-08-17 22:04 edited 2017-08-17 22:06

  And another LiDAR. 2 meter range.
  
  https://microed.co/tinylidar/