Build a Cheap Z-wave Vibration sensor?

[Cassan0va]

Have been thinking if i could connect multiple vib sensors in a serie into a fibaro universal?
Think that could work?

[hek]

Why not using MySensors? Using one of these perhaps?

http://www.ebay.com/itm/1pcs-801S-Vibration-Sensor-Module-vibration-Analog-Output-Sensitivity-s3-/181847025460?hash=item2a56ed6734:g:BggAAOSwDNdVzUKo

[Nca78]

Hello, there are some very cheap accelerometers that should be able to do this job.
Check ADXL345 for example they cost 1$ on a breakout board on aliexpress. You should be able to put a few connected to the same pro mini board so you can manage more than one step and save even more.

[Nca78]

@hek said:

Why not using MySensors? Using one of these perhaps?

http://www.ebay.com/itm/1pcs-801S-Vibration-Sensor-Module-vibration-Analog-Output-Sensitivity-s3-/181847025460?hash=item2a56ed6734:g:BggAAOSwDNdVzUKo

I've found those to be poor at detecting small vibrations, I doubt they will be reliable to detect someone putting foot on a step.

[hek]

I haven't tried them myself. Does the piezo variant behave badly as well?

http://www.ebay.com/itm/Analog-Piezoelectricity-Ceramic-Piezo-Vibration-Sensor-for-Arduino-HM-/182236397646?hash=item2a6e22c04e:g:5kIAAOSw0UdXqVdC

[Nca78]

@hek said:

I haven't tried them myself. Does the piezo variant behave badly as well?

http://www.ebay.com/itm/Analog-Piezoelectricity-Ceramic-Piezo-Vibration-Sensor-for-Arduino-HM-/182236397646?hash=item2a6e22c04e:g:5kIAAOSw0UdXqVdC

Haha interesting, never tried it. I'll order one right now to check, thank you for the link !

[Cassan0va]

@hek

how many of those do you think ill be able to fit into one board?

[hek]

You can use all the free analog pins. In total 8 on AtMega328 (where 4 is easily exposed on a nano-board).

[Cassan0va]

@hek

well i better get cracking then :) First project of this sort so we will see how it goes.

[Cassan0va]

Also just read up that there is a mysensors plugin for homeseer, thats amazing but does it have to be phyiscally connected to the controller or just same network?

[Nca78]

If it supports ethernet gateway then it's on the same network. Else it's serial gateway and you need to be connected with USB