BTE16-19 PIR Sensor

[skywatch]

Has anyone get any experience with this module? I can't find info on current consumption anywhere.

Here is a link to the module....

https://www.aliexpress.com/item/32957913080.html?algo_pvid=7e84317f-3dc9-464e-87fa-31123d3bdc00&algo_expid=7e84317f-3dc9-464e-87fa-31123d3bdc00-17&btsid=0b0a0ae216136795299291188e99b9&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

[Nca78]

Hello, from the pictures it's based on the EG4002 PIR controller
https://cdn-3a4dd4ab.ozdisan.com/ETicaret_Dosya/518010_780564.PDF

Typical power consumption 65uA @5V and 35uA@3V for controller only, so ... not very interesting it seems.

[skywatch]

@Nca78 Thank you for that info -you are right, for battery use it is not looking so good. I have a standard PIR test set up with HC-SR501 running at 3V with a 3.3V promini, 4MHz internal minicore, led and ldo removed and still taking 160-170uA in 'non-active' mode and about 250uA when triggered. This BTE module might be better than that but still not enough.

I think I will change locations of planned pirs so that they can be powered by mains voltage.

[Nca78]

@skywatch there are some "all integrated" PIR sensors, with all electronic in the "can" so they don't need external components, and they use around 12-15uA, it's low enough for battery power. Check AM312 for example.

[skywatch]

@Nca78 Thanks for the hint - I will check it out today :)

[skywatch]

@Nca78 said in BTE16-19 PIR Sensor:

AM312

IS this the one you were thinking of?

https://www.aliexpress.com/item/1005001553369723.html?algo_pvid=17b9bee3-37c4-498b-97fa-ecb59f90a0b2&algo_expid=17b9bee3-37c4-498b-97fa-ecb59f90a0b2-3&btsid=0b0a0ac216138205934563604ec725&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

[Nca78]

@skywatch yes but you don't need a module to use it, it's including a regulator and will probably use much more power than the sensor alone.

[skywatch]

@Nca78 Great - I have some of those somewhere (next mamoth task is to find them)! - Then I can remove the regulator and will report back!

All done!

With sensor only I am seeing 12.9uA in 'untripped' mode and 14.2uA when tripped for about 2 seconds - that is a result!
Testing further this module seems to work down to 1.9V which is ideal. Here is a table of results I get....

Voltage Vcc (V) Untripped (uA) Tripped (uA)
3.0 12.9 14.2
2.7 9.4 10.3
2.5 8.5 9.6
2.3 7.7 8.8
2.1 7.0 8.0
1.9 6.3 7.3

These are 'bench' measurements and may not reflect 'in use' performance (ie range may be reduced at lower voltages, I have not tested that yet).

Thanks so much for the hints, I only now have to test out to see if the range and spread is good enough for what I need. Maybe later on today or tomorrow....

Cheers! :)