Is ARM the future of MySensors?

[NeverDie]

Don't your neighbors have better things to do?

[gohan]

@neverdie I was about to say the same... it must be a very boring town :D

[ghiglie]

Well, last week I couldn't realize how my garage temp was so high.... I noticed my neighboor started autoproducing some sensors too... :D So it's time for signing/encryption.

[dakipro]

@nca78 said in Is ARM the future of MySensors?:

there are 350 appartments in my building alone and my nrf24 network runs well

If nrf24 working on same/similar frequency as wifi, is it not being disturbed by other wifi networks? (I guess that in 350 apartments there are a minimum of 350 wifi networks).
I never quite understood how exactly nrf24 and wifi go along.

[Nca78]

@dakipro said in Is ARM the future of MySensors?:

If nrf24 working on same/similar frequency as wifi, is it not being disturbed by other wifi networks? (I guess that in 350 apartments there are a minimum of 350 wifi networks).
I never quite understood how exactly nrf24 and wifi go along.

It depends on the channels used by NRF24 and wifi networks, so far I've been lucky it seems :)
Also, high rise is in fact probably helping by having thick concrete walls with lots of rebars inside, attenuating radio signals. I see many networks but most of them have week signal.

[gohan]

@dakipro wifi only overlaps the nrf24 range for a number of channels, so usually if you choose channels at the margins of the spectrum you should be good

[Yveaux]

@dakipro said in Is ARM the future of MySensors?:

If nrf24 working on same/similar frequency as wifi

The frequency band of nrf24 is wider than used by wifi. If you select a frequency just outside the wifi band it should help in reducing interference.

[skywatch]

The current NRF24 set up is more secure than bluetooth or wifi from attack.

I say this based on the fact that anyone with a laptop, mobile etc can have software to crack/hack/spoof/inject into bluetooth or wifi. It is not that difficult for kids to do.

The NRF is another matter as to achieve this on that radio module would require acquiring a module, setting it up with a pc/phone and then getting software to attack it.

People often go the easiest route and I am less worried about nrf24 than I would be if the system used bluetooth/wifi or cloud.

Just my thoughts on a dark and wet Monday morning.....

[dakipro]

@yveaux said in Is ARM the future of MySensors?:

@dakipro said in Is ARM the future of MySensors?:

If nrf24 working on same/similar frequency as wifi

The frequency band of nrf24 is wider than used by wifi. If you select a frequency just outside the wifi band it should help in reducing interference.

Thanks, that is what I thought. Btw, I am using default channel for mysensors (79 or whatnot), is that "just outside" enough?
I never had (connection) problems with mysensors, so I never researched fine-tuning options.

Can some android wifi analyzer help with the showing what is best to use, is there some guide available regarding nrf24? (should we write a guide? :) )

[NeverDie]

@dakipro said in Is ARM the future of MySensors?:

I am using default channel for mysensors (79 or whatnot), is that "just outside" enough?

I don't believe so. Channel 123 is though. Easy to remember.

[Yveaux]

@dakipro see here for a mapping of wifi and nrf24 channels: https://forum.mysensors.org/topic/4721/nrf-frequency-and-channels/5

NRF24 Channels 2..96 overlap with wifi. I personally would stay away from the high nrf24 channels (110+) as I've seen troublesome performance with clones.
Channel 100 performs well at my place.