Post 9mfU1QrbodAcqPq38K by Shitlord@dobbs.town
 (DIR) More posts by Shitlord@dobbs.town
 (DIR) Post #9mfT6bYJP1QhUMiORM by fribbledom@mastodon.social
       2019-09-07T04:22:36Z
       
       0 likes, 0 repeats
       
       Why did no one tell me that radar sensors are not only much more reliable at detecting motion than PIR sensors (I knew that much), but by now they are also much cheaper?!
       
 (DIR) Post #9mfTK9N0ypVS8ZtES8 by mngrif@qoto.org
       2019-09-07T04:25:05Z
       
       0 likes, 0 repeats
       
       @fribbledom idk about proper radar but ultrasonic sensors are great for this stuff if your required range is at most a few ft.
       
 (DIR) Post #9mfTVaCZYrQeXVSP6u by fribbledom@mastodon.social
       2019-09-07T04:27:07Z
       
       0 likes, 0 repeats
       
       @mngrifThe RCWL-0516 seem to work fantastically within a 180 degree window and a range of up to 15ft. Also they're like 50 cents a pop.
       
 (DIR) Post #9mfTuUE2uy1dFC1Nlg by chaomodus@radical.town
       2019-09-07T04:31:35Z
       
       0 likes, 0 repeats
       
       @fribbledom Really? I thought PIR sensors were like cents
       
 (DIR) Post #9mfTzZHTY8w6N334LY by fribbledom@mastodon.social
       2019-09-07T04:32:32Z
       
       0 likes, 0 repeats
       
       @chaomodus I could probably find a cheaper source, but where I get them they're like ~$1.50. The RCWL-0515 radar sensors are $0.50 a pop.
       
 (DIR) Post #9mfU1QrbodAcqPq38K by Shitlord@dobbs.town
       2019-09-07T04:32:52Z
       
       0 likes, 0 repeats
       
       @fribbledom I wonder what the drawbacks are of the Doppler module. You'd think it would be more popular.
       
 (DIR) Post #9mfU9SGGVFCZUoCG48 by fribbledom@mastodon.social
       2019-09-07T04:34:20Z
       
       0 likes, 0 repeats
       
       @Shitlord I guess they're a bit harder to fine-tune / calibrate and they're not only triggering on line of sight, but also through thin walls. Which can be a good or a bad thing, depending on what you're trying to do.
       
 (DIR) Post #9mfULSrY5p64ptMXTM by chaomodus@radical.town
       2019-09-07T04:36:30Z
       
       0 likes, 0 repeats
       
       @fribbledom wowee, this is relevant to my interestes!
       
 (DIR) Post #9mfUMub0T1LD8eJbBQ by Shitlord@dobbs.town
       2019-09-07T04:36:45Z
       
       0 likes, 0 repeats
       
       @fribbledom ohh ok. Well, good luck!
       
 (DIR) Post #9mfUnlXMFujirUPh9k by Shitlord@dobbs.town
       2019-09-07T04:41:34Z
       
       0 likes, 1 repeats
       
       @fribbledom neat application, that and finding people in rubble.
       
 (DIR) Post #9mfVBTjE7Rg8ZzGvk8 by chaomodus@radical.town
       2019-09-07T04:39:59Z
       
       0 likes, 0 repeats
       
       @fribbledom so these are just binary yes? No ranging or anything?
       
 (DIR) Post #9mfVBTy7E5aXKAEowy by fribbledom@mastodon.social
       2019-09-07T04:45:54Z
       
       0 likes, 0 repeats
       
       @chaomodusCorrect, pretty much a direct replacement for PIR sensors, except they don't require a direct line of sight.
       
 (DIR) Post #9mfVDkLLJhLygkBLai by chaomodus@radical.town
       2019-09-07T04:46:18Z
       
       0 likes, 0 repeats
       
       @fribbledom interesting, still useful though.
       
 (DIR) Post #9mfczxR4drDCsBnZlg by JulieSqveakaroo@dragon.style
       2019-09-07T06:13:18Z
       
       0 likes, 0 repeats
       
       @fribbledom Nowadays, you don't need to purchase the whole submarine along with one!
       
 (DIR) Post #9mfmjIxkLovqFxmMaW by edavies@octodon.social
       2019-09-07T08:02:27Z
       
       0 likes, 0 repeats
       
       @fribbledom How does the power consumption compare? @Shitlord
       
 (DIR) Post #9mftBbPVxHZ5IxdyTI by anathem@toot.kif.rocks
       2019-09-07T09:14:48Z
       
       0 likes, 0 repeats
       
       @fribbledom Wait, what?