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

BiEj 609 9
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How can I switch five garden lights connected to three power sources at the same time without using Wi‑Fi internet or a cloud service?

Use ESP-NOW with ESP-based relay devices instead of a cloud system: one transmitter can send a periodic frame to the receivers, and each receiver can switch its relay when that frame is received [#21159789][#21162742] You do not need to design the hardware from scratch; a SONOFF Basic or another ESP-based relay can be reflashed for this job [#21159789] In the suggested setup, when the transmitter is energized by the twilight switch, it keeps broadcasting a specific frame every few seconds [#21162742] The receiver then keeps its relay on for a set time, for example about 1 minute, after each received frame [#21162742] Another option mentioned was Wi‑Fi relays that create their own local Wi‑Fi network without internet, but Wi‑Fi is more power-hungry than BLE [#21158765]
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  • #1 21157200
    BiEj
    Level 9  
    Posts: 54
    Rate: 4
    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.

    Device to control 5 garden lights without WiFi and cloud, 3 power sources? .
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  • #2 21157469
    Mateusz_konstruktor
    Level 37  
    Posts: 4306
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    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?
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  • #3 21157480
    TvWidget
    Level 39  
    Posts: 4425
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    What is the estimated distance between the lamps ?
    From what location and distance do you want to control them ?

  • Three twilight switches may be needed for synchronized control

    #4 21158640
    BiEj
    Level 9  
    Posts: 54
    Rate: 4
    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?
  • #5 21158661
    Mateusz_konstruktor
    Level 37  
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    BiEj wrote:
    I guess three twilight switches. Just are these devices accurate enough to give voltage at similar times?
    .
    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.
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  • BLE is more energy efficient than WiFi relays

    #6 21158765
    TvWidget
    Level 39  
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    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 .
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  • Budget limit for a simple light controller

    #7 21159780
    BiEj
    Level 9  
    Posts: 54
    Rate: 4
    >>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
    Device to control 5 garden lights without WiFi and cloud, 3 power sources?

    Added after 3 [minutes]:

    >>21158765 I wouldn't want to spend thousands on this solution. Sooner PLN200, maybe PLN300, no more. After all, it's hardly rocket science.
  • #8 21159789
    krzbor
    Level 29  
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    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.

  • Clarifying transmitter-receiver pairing for twilight control

    #9 21162701
    BiEj
    Level 9  
    Posts: 54
    Rate: 4
    >>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?
  • #10 21162742
    TvWidget
    Level 39  
    Posts: 4425
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    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.
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Topic summary

LABEL_AI_GENERATED
The discussion addresses the need for a device to control five garden lights connected to three separate power sources without relying on WiFi or cloud services. The user seeks simultaneous on/off switching triggered by a twilight switch, preferably using radio transmission to relay signals to receivers with relays controlling the lamps. Distances between lamps range from 4 to 8 meters. Adjustable twilight switches are confirmed to provide sensitivity tuning for synchronization. Energy-efficient wireless communication alternatives such as BLE and WiFi-based relays creating independent networks are considered, with cost constraints around £200-£300. A practical solution involves using ESP-NOW technology with ESP-based devices like SONOFF Basic relays, which can be reprogrammed (e.g., with Micropython) to act as one transmitter and multiple receivers. The transmitter sends periodic frames when energized by the twilight switch voltage, prompting receivers to activate relays for lamp power control, enabling automated, synchronized switching without manual intervention or cloud dependency.
AI summary based on the discussion. May contain errors.
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