Any recommendations for battery powered PIR from China?

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I’m looking for some PIR sensors for the cheap. It should have the following requirements:

• Protocol known in Pimatic
• RF 433 Mhz (couldn’t find any off the shellf wifi PIR sensors)
• Battery powered (for a resonable time)
• Normal / acceptable format

I know I could build it better and cheaper with ESP myself, but for know RF is just fine. I can allways frankenstein the cases from these PIR’s to house a ESP.

Anyone good experience with some China types?

@koffienl
I don’t have pirs in use, but @sweebee built some with attiny on low power consumption and kaku rf protocol.

If you wabt to tinker a bit, have a look here
https://forum.pimatic.org/topic/182/show-your-hardware/21
and here
https://github.com/sweebee/Arduino-home-automation/tree/master/433Mhz/Attiny

Hmm … perhaps interesting enough to build myself
Not sure if empty enclosure will be more expensive then fill powered PIR from China.

I’m using these enclosures:
http://s.aliexpress.com/iia2imqY
Perfect for things like this

Not exactly something that would get the WAF certificate

Can’t find any neat dummy enclosure for PIR in ebay.
Found this : http://www.ebay.com/itm/433MHz-Wireless-PIR-Infrared-Motion-Detector-Sensor-Home-Alarm-System-QM3F-/301744363411?hash=item46415d9793:g:E6wAAOSwuTxV-7Jh looks interesting for the price.

A bit of a gamble for the protocol, but I might buy one

Nice enclosure! well i assume you are always code gambling with cheap china devices. If you buy and test pls. tell us about your findings !

Just thinking out loud … I currently own a RF home alarm system. It is old, expensive tough to get batterys and outdated.
I want it to replace with something I build myself. I could re-use the current PIR enclosure I have and put a attiny or ESP-01 in the enclosure.
The PIR’s could create a separate wifi network and all communicate to a master ESP that will handle all the messages from PIR.
Have to sleep a few nights before I decide what route to take

And what about my sensors? They’re low power, can build a mesh network and they’re cheap to build

Not my kind of game. I think I can establish the same with 433Mhz and/or ESP

+1 for mysensors. I Will never go back to 433mhz. They easily Flood each other when there are a lot of 433mhz devices.

And my mysensors pirs also have a ldr sensor and sends the battery percentage.

Not cheap, but ready made wifi http://www.dx.com/p/d-link-dch-s150-wi-fi-smart-motion-sensor-white-852425488

maybe clones will pop up shortly

phew! 43 euro, for this prics you can build 10 attiny sensors yourself ^^
guess you’re paying for the name only…

True, but maybe not everyone. The most interesting thing is that there seems to be an emerging market when big players like (cisco/)d-link are throwing out products. And I’m willing to put some money on there being an ESP inside of those things. So fingers crossed for more products and better prices.

I use 3 of this pir’s for my alarmsystem.

with 2 AA’s they stay about 3-5 years online

http://www.importe-uzman.de//funkalarmanlagen-bewegungsmelder-kompatibel-zonen-anlage-p-4476.html?osCsid=0cd6b4f19f537ee2fd0a0afcf6a33f30

…and also create a protocol for it (wait for merge)

https://github.com/pimatic/rfcontroljs/pull/83

edit: more pics and infos here: https://github.com/pimatic/rfcontroljs/issues/36

@sweebee said:

And my mysensors pirs also have a ldr sensor and sends the battery percentage.

May I ask how you receive it with the pimatic-mysensors plugin? As far as I know this plugin doesn’t have this feature. See also my issue about that: https://github.com/DheerajKhajuria/pimatic-mysensors/issues/55 (sorry , it is a bit off topic but relates directly to sweebees post above)

@Heizelmann Use the battery device:

{
      "id": "Battery",
      "name": "Batterijen",
      "class": "MySensorsBattery",
      "nodeid": [
        1,
        2,
        3,
        4,
        5,
        6,
        7
      ],
      "xAttributeOptions": [
        {
          "name": "batteryLevel_1",
          "displaySparkline": false
        },
        {
          "name": "batteryLevel_2",
          "displaySparkline": false
        },
        {
          "name": "batteryLevel_3",
          "displaySparkline": false
        },
        {
          "name": "batteryLevel_4",
          "displaySparkline": false
        },
        {
          "name": "batteryLevel_5",
          "displaySparkline": false
        },
        {
          "name": "batteryLevel_6",
          "displaySparkline": false
        },
        {
          "name": "batteryLevel_7",
          "displaySparkline": false
        }
      ]
    }