Repeating RF transmisions
3 December, 2012 - 23:54
Hi all,
This may be a silly question, or prehaps already asked before so forgive me if so
I sometimes find some of my HE sockets may take a "couple" of transmissions to toggle
i dont think this is the signal strengh as the original RF remote gives the same performance
obviously these sockets dont give any indication to the HAH that they have toggled which would be the icing on the cake (prehaps a hack with a jeenode into each socket could get around this)
for a quick and dirty fix i was wondering if an option could be made in the HAH config to specify a repeat factor with a delay to possibly overcome this issue?
Thanks
Andy
4 December, 2012 - 11:05
#2
No problem here
They all seem to work 100% i use a mix but mainly HE-302/322.
4 December, 2012 - 12:57
#3
Complex subject
With control via 'Fire and forget' RF transmission it's hard to get 100% reliability. 433HMz can be 'busy' in homes where there are gadgets. If two happen to xmit at the same time, everyone loses. Some devices that I've inspected are hugely promiscuous in their transmissions ... like repeating over 60 times and taking a few seconds to do so. Even electrical 'noise' (not necessarily generated in your own home) can upset the cheap circuits that act as receivers inside the switch modules.
It's probably better to have a couple of separate, shorter, transmissions rather than increasing the burst count to a very large number.
At the end of the day, if you require 100% reliability of operation, you will need some sort of feedback loop. The HAHnodes are good for this sort of thing. A correctly placed roomNode can detect whether a light has been switched on. A current cost IAM can detect whether an appliance is on or off.
Cheers,
Derek.
4 December, 2012 - 16:26
#4
Complex indeed
And a further complication for those of us using the Lidl sockets is that some of them are the Dimmer type sockets and if you send a second "on" burst the socket goes into dimming mode. So multiple on signals are not really helpful. (perhaps I should just throw them out :-).
I don't use HE sockets at the moment I use the Lidl ones. I've increased the "burst" time in the config to keep the RF transmission going for a bit longer. I've increased the burst from 16 to 48 repetitions. Still not 100% reliable I'm afraid but much more hit than miss.
To be fair I don't have an external aerial so it relies on the wire attached to the transmitter in the box.
I'm sure it wouldn't be too difficult to increase the burst on the HE sockets and see if this helps.