Device to control 5 garden lights without WiFi and cloud, 3 power sources?

Question

Hi,

Is there a non WiFi and Smart cloud based device that will allow five garden lights to be switched on but connected to three power sources?
I would like all the lamps to turn on and off at the same time. Are there any radio transmitters and receivers with relays? Below is a sketch with the lamps.

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Mateusz_konstruktor · Answer

Both conditions must be met, but is it a case of not using the cloud from one device manufacturer or another and transferring data over Wi-Fi is acceptable?

TvWidget · Answer

What is the estimated distance between the lamps ? From what location and distance do you want to control them ?

BiEj · Answer

Distance between lamps:
L1 and L2 from L3 approximately 4m
L1 and L2 from L4 and L5 approximately 8m

As for WiFi and the cloud, I would have to install another AP as I have practically no WiFi coverage at this location. This is a last resort. Hence looking for another solution. I was thinking of something along the radio path.
The L1 and L2 lamps are controlled by a twilight switch. I was hoping that it would be possible to transmit the signal by radio to some receiver with a relay to the power sources of lamp L3 and lamps L4 and L5. I don't want to control this manually, but only with a twilight switch.
Unless there are three twilight switches. Just are these devices accurate enough to give voltage at similar times?

Mateusz_konstruktor · Answer

. Virtually all twilight switches have adjustable sensitivity, and there are usually easily accessible knobs on the outside of the housing just for adjusting to specific needs. Please provide more details on these lamps.

TvWidget · Answer

I don't know what budget you want to allocate for the solution.
So-called WiFi relays can create their own separate WiFi network. Internet access is not necessary.
However, the WiFi interface is relatively power hungry. The whole thing running 24/7 will generate some costs.
Much more energy efficient is BLE. In this application, however, the cost of the solution will, in my opinion, be higher than that based on WiFi .

BiEj · Answer

>>21158661 Correct adjustment is possible, but will the light-sensitive probes and other components allow "reasonably" good on/off synchronisation?
Here is the info on the lamps

Added after 3 [minutes]:

>>21158765 I wouldn't want to spend thousands on this solution. Sooner £200, maybe £300, no more. After all, it's hardly rocket science.

krzbor · Answer

You can use ESP-NOW technology Link , and here is the video: Link . Unfortunately you have to program this yourself. You don't have to create the devices for this - just reprogram the SONOFF Basic or any other ESP-based aftermarket relay.

BiEj · Answer

>>21159789 The proposal looks good. While I have uploaded Suple to Sonoff, I will probably upload something else. Worse with the programming. I understand that here would be one transmitter and two receivers. The transmitter programmed so that when there is voltage for the lamps paired with the twilight switch, the transmitter sends information to the receivers, which are programmed to switch on the relay when they receive information from the transmitter?

TvWidget · Answer

The transmitter, when energised, periodically transmits a specific frame e.g. every 10 seconds. When the receiver receives such a frame, it extends the switching on of the relay for e.g. 1 minute. Micropython can be uploaded to ESP-based devices. Writing a script in the so-called high-level language is quite simple and does not require special tools, compilation, etc.

Device to control 5 garden lights without WiFi and cloud, 3 power sources?

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