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NNTP-Posting-Date: Sun, 26 Jan 2025 23:52:16 +0000
Subject: Re: Little Project - a 2-Level "Porch Light"
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Date: Sun, 26 Jan 2025 18:52:18 -0500
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On 1/26/25 4:36 PM, rbowman wrote:
> On Sun, 26 Jan 2025 04:07:10 -0500, 186282@ud0s4.net wrote:
> 
>> The choice of the add-on motion sensor especially. Need nearly a
>> 180-degree sensitivity and a great service-life profile.
> 
> I've been using these:
> 
> amazon.com/gp/product/B0CCF3HYT9
> 
> The sensing angle is about 100 degrees but you do get six of them along
> with mounting brackets. Also the output is digital not analog. There are a
> number of other options but I think the all use the same sensor. It's
> adjustable for range and sensitivity.
> 
> https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/
> overview
> 
> has information on how they work and some of the adjustments. The ones I
> have are very close to Adafruit's new design. Follow the pages and there
> is a simple diagram with batteries, the module, and a LED, no Arduino. You
> could do something like that but drive a FET to control the main LED.

   Look nice - but this app is 120vac all the way.

   Alas all the little ones are rated for 40w max, which
   is fine if you stick to LED bulbs, but SOMEBODY might
   stick a filament bulb in there someday.

   About the physically smallest I came upon early is a
   RAB Lighting SMS500W ... but it still uses a 1/2" hole
   and would hang out under the light unit. We'll see.

   https://www.amazon.com/dp/B000VTRAQM?ref=emc_s_m_5_i_atc