Wireless data transfer


#1

Is there a way to connect a Velbus sensor wireless to the Velbus network. Here at home there is no possibility to place a data cable to the centre of the ceiling. I would like to place a mini PIR in the center of the ceiling and connect the data wireless to the a Velbus data cable . I have 12 volt at the place where I want to put the sensor. This way I would be able to use all the capabilities of the VMBPIRM.
Thank you


#2

At the moment, no. (Not using Velbus material only). There may be solutions out there by third parties, maybe someone else here has more information on those…


#3

Hi

Everything is possible, it just depends on your budget.

If you’ve already got VelServ running on a machine in your network, you could…

Add a tiny SBC like the new Pi Zero W, with another copy of VelServ (running in client mode).

https://shop.pimoroni.com/products/raspberry-pi-zero-w?variant=3147218944010

The down side is that you’d need a Velbus USB module and a second Velbus module to make it work.

Parts list -

VMBPIRM (or VMBPIRCx)
VMB1USB
Linux SBC with LAN or WiFi - Like a Pi Zero W
Another Velbus module, maybe a VMB1RYNOS
12v to 5v dropper / buck


#4

Stuart beats me to it :smile:

another solutions could be (including velserv:
vmbpirc -> vmb1rs -> esp01 running esplink serial to tcp bridge -> connect it to velserv running on a PI or openhab installation --> vmb1usb connected to the pi

not test this but could work. Simpler would be to use a PIR sensor with an open contact and transfer that contact trough rf433 or use a zigbee pir sensor or …