In the office I have industrial light sensors which don't work properly - when I enter a room the lights are turning on but after period of time it switches lights off like there's nowhere in the room.

I'd like to install PIR/presense sensors in bathroom but definitely don't want to have ussues with turning lights off because sensors don't work properly.
Does anyone has a solid experience in building / using presense sensors?

I'm using MySensors under Vera UI7 in the environment where radio power is not enough. Repeater feature logic is not very clear for me and I have some questions:

• can a node work via many repeaters? I mean, if a node is really far from gateway, can it get data from the gateway via many repeaters, for example: Gateway->Repeater1->Repeater2->Repeater3->Target Node ?
• can a node can be included via repeaters? I mean, does inclusion mode work if the node not connected directly to gateway, but via repeater(s)?
• do repeaters load network and/or gateway? Will tens of repeaters affect network performance and is it worth to make each node a repeater by defaul?

Thanks!

If there's no ready-to-use sketch, then which field I need to track to understand RX level?

I have some strange issues with connection between node(s) and gateway. All NRF24L01+ based.
To analyse this I plan to create a device to measure signal level. Is there any ready-to-use sketch for this?
Thanks

I have long (~10m) wires connected to Arduino Pro 3.3V ports. All of them used with just debouncers, so I connect these wires with GND to switch something.

Shall I do something special to decrease noise or any other potential problems?

I found problem in my code: my node sends update if only it has value changed, which can take really long.

@flopp, "it will start to search for a Parent after 6 failures" - does 6 tries happen automatically or the node need to send something 6 times?

@hek, many thanks, changed the format and see full info now!
Question about this Last update value: does it show when value was changed for Vera or this is time when the node sent last value (even if the node sent same value as before)?
I mean, does it show time of last communication of with the node, or time when value was changed?

@r-nox but not clear what the time there really means.

@r-nox, Device List scree, "Last update" field under each node (not device/sensor).

@DavidZH, sounds promising. Give me something for tests, I will spend next few months on this.