This little PIR is great because it is very easy to get up and running with. You simple provide it 5V, ground and run the yellow wire to a digital input on a micro-controller like the Arduino. It sends a HIGH signal on 5V if motion is detected. The one main setback with this device is you cannot set the delay time. I believe the delay is around 15 seconds ... Read more
Very easy to work with, only power it and it works!! Good range and sensibility.
Can be used to make alarms, automatic lighting, and much more! Has some unpopulated pads intended to add darkness-mode capability. Maybe it should come with a pair of smd LEDs to see power and trigger. The circuit board is easy to understand, and the main chip datasheet ... Read more
a well price and reliable unit. has good sensitivity. Works well with 5- 15 V input range. made a couple of switches battery powered one and 12 volt adapter powered with the units and all works well. size is a bit to bulky for fitting / making a compact switch, but manageable. Range is bit less 4-5 M the wire leads could be little more longer. and would ... Read more
Relatively cheap. You can get a cheaper version without the leads (sku: 139624). This version just makes it easier to prototype with as you can just stick the leads into your breadboard. It's very easy to use and quite self-explanatory. Which is good, because it comes with zero documentation :) Red lead goes to 5V, Black lead is GND and the Yellow lead ... Read more
+ quite accurate inner timer
+ plastic cover
+ long enough connector cables
+ cables are connected by commonly used connector - not very sensitive, but is able to detect general movement
- capacitors and transistor on the back side are quite large
- one plastic cover of the two I ordered is not holding really well, the other one is fine I think it's ... Read more
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