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OK, did it, albeit with Home Assistant. A similar method set-up would work with Domoticz.
In the end I went with Sonoffs/Shellys connected to the light ring. They power up and send an MQTT message to notify of switch on, and the MQTT broker sends a last will message to notify of switch off when the they disappear from the network. It was all much more straightforward than expected. Works great.
Any recommendations? I’ve had bad luck recently with Megaman 706084663093 and LED Hut “5W GU10 LED Spotlight – 50W Replacement – 2700K – Dimmable – Warm White – Dimmable”. Both buzz very noticeably, especially the LED Hut bulbs.
If I had to prioritize, I’d put no buzz as more important than a good dimming range.
Thanks for the replies. I’ll get around to trying this soon, probably with the current detection method.
Thanks for your helpful thoughts. I did wonder about the dimmer feeder current, andv your other two methods are intriguing. I’ll do some experimenting and see how I get on.
Good tip for the ESP8266. That’s surely a better choice.
I’ve been pondering the idea of DIYing on/off status indication for Gen 1 wired light switches to show the correct on/off status in Domoticz. Because the Gen 1 wired light switches do not transmit a wireless signal when switched on or off manually, Domoticz is unaware of the status change.
I know that the Gen 2 switches provide on/off status, but I’d rather not change all of my switches. And, Gen 2 is not supported in Domoticz.
First off, has anyone done something similar?
My basic idea builds off something like this https://olimex.wordpress.com/2015/09/29/energy-monitoring-with-arduino-and-current-clamp-sensor/.
1. Sense current in the light circuit (so, knowing when lights are on) using a current transformer such as https://www.olimex.com/Products/Components/Sensors/SNS-CURRENT-CT013-100A/ clamped around a live wire feeding into one of the downlighters.
2. Connect the current transformer to a very-low-power Arduino with a 433MHz transmitter or transceiver, all powered by replaceable AA battteries or ideally a coin cell. I’ll need to work out the power budget.
3. When the lights are switched on (high current is sensed), transmit a certain code over 433MHz. When the lights are switched off, (As a possible future upgrade using a 433MHz transceiver, add the possibility to receive a code triggering the unit to resend the on/off status code.)
4. Receive the status codes with a RFXtrx433E (which I use instead of the LWRF Link) controlled by Domoticz
5. Use dummy slave switches in Domoticz to update the status of the actual (master) switches based on the received status codes.
Does this make sense? Any ideas for alternatives or improvements?
Thanks very much, sarren. I also found this range https://www.amazon.co.uk/AET-SL1GSOCBS-Screwless-Socket-Insert/dp/B017H8W7A8/, which is a good match. I ordered one to check. The black plastic insert is a tad darker than the plastic on the LightwaveRF switches, but I don’t think you’d notice unless they were installed right next to each other. The brushed steel is a near-perfect match.
Has anyone found a range of non-LightwaveRF sockets which are close in appearance to LightwaveRF brushed steel switches? These are the closet that I can find so far: http://www.diy.com/departments/holder-13a-brushed-steel-switched-double-socket/176838_BQ.prd. They’re quite s good match in person. The plastic inserts are less black than they appear in the photo. But, I would prefer screwless sockets.
OK, so I decided to set on/off sequences within the default Away event so that various dimmers switch on or off at different times in order to simulate occupancy. This works fine.
I can start the event using the the web app, Android app or IFTTT. However, I don’t see any option to stop the event expect by using “Stop All Events” in the web app. Am I overlooking this option in the Android app?
I do see that a UDP command can be sent to stop (cancel) an event. If there’s no more obvious way, I’ll create a Tasker task to cancel the event. But, this all seems unnecessarily complex.
Hi, after much searching and reading a couple of confusing examples… What is the recommended way to achieve something like Wemo’s away mode where a number of switches and/or dimmers can be set to randomly switch off and on during a chosen time period, for example, from dusk until midnight?
I’d like to be able to trigger such a mode (an event?) with a single click and ideally also with IFTTT. I see that IFTTT can trigger LWRF events.
Thanks very much.