I've been doing hands-on reviews of new LIDAR units over at our sister site, DIY Robocars. If you're interested in LIDAR, check them out there:
---New Benwake CE-30 solid state 3D Lidar (shown above)
--New $5 ST laser range finder chips with 4m range
-- 2D Lidars: RP Lidar A2 vs Scanse Sweep
Another option and perhaps better solution will be the new RADAR chips from TI. Originally intended for automotive use they are releasing an industrial version too. None of the problems associated with LASER ranging. These are uses to detect obstacles and for ranging.
Looks like it's $125 each for the bare chips. Not sure if anyone is selling them in a ready-to-use form factor yet, but definitely worth watching.
That's the latest and greatest 70Ghz technology. 24Ghz has been out for a while. 24Ghz RADAR from Infineon
24Ghz chip is about $7 in single quantity. The $125 part from TI will no doubt come down to less than $10 each once it is in full production. The new 77Ghz band parts are replacing the 24Ghz band parts which will be phased out.
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