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Which 433MHz radio module to remotely switch on a lamp on the property?

mevelrik 3450 14
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  • #1 16456656
    mevelrik
    Level 12  
    Welcome,

    I have the following problem to solve. I have a light in the garage and a switch for it. At the other end of the yard I have a lamp that illuminates the entire property. I would like this lamp to turn on with the lighting in the garage. My plan so far has been as follows: radio module + relay. I bought a 433MHz radio module (one for £4) thinking that if I send a high state to the transmitter, I will get a high state in the receiver. Unfortunately after a while instead of 0V I have 1.5V and in addition the transmitter heats up (burns) when I give it a continuous signal. Which transmitter should I buy?
    Distance 70m + thick wall.

    Greetings
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  • #2 16457076
    kokapetyl
    Level 43  
    mevelrik wrote:
    (one for 4£)
    .
    So what is there to ask of him ? :D .
    On the other hand, such transmitters (control) is only intended for short operation (short control signal on/off)
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  • #3 16457378
    mevelrik
    Level 12  
    Man lives with hopes. Someone suggest how to solve the problem? already let me lose, I will spend even these 6zł ;)
  • #4 16457463
    nikusert
    Level 41  
    Hello .
    If you already have an existing gate remote control in which there is a free button, you can use the Proxima LN radio network controller.
    Greetings.
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  • #5 16457605
    mevelrik
    Level 12  
    I don't have one, but I can have one. The only question I have is how to mount it here, because I don't want to switch on this lamp from the remote control, I want it to switch on with the light in the garage.
  • #6 16457651
    nikusert
    Level 41  
    This lamp is away from the garage from where it is powered, where the igniter has been so far.
  • #7 16462188
    mevelrik
    Level 12  
    The lamp is attached to the wall of another building and lights up with a motion sensor. It has a fixed 230V power supply connected.
  • #8 16463346
    nikusert
    Level 41  
    If the lamp is close to the garage and the power supply is not from the garage, then, as I wrote, a receiver, for example from Zamel ROP-01, and a transmitter in the form of a key switch, not a remote control, mounted on the wall.
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  • #9 16463503
    mevelrik
    Level 12  
    Ok, but that's not what I mean. The remote control or it's additional switch is not an option. The theme is to use the switch of the one that is already there, because then I know that I have turned everything off.
  • #10 16463537
    nikusert
    Level 41  
    If the lamp is powered from the garage, it is just a question of finding the power supply for the lamp (cable), whereas if the power supply is from another building, for example a house, this is a problem.
  • #11 16463614
    mevelrik
    Level 12  
    As if it were that simple I wouldn't be combining ;) Unfortunately this lamp is powered from the building to which it is attached (the workshop to be precise).
  • #12 16465258
    nikusert
    Level 41  
    If the lamp is powered from another building, that's lame, only remote control is an option. If you have a lamp with a movement sensor, the lamp switches itself off and does not light up during the day anyway. If you have this remote control, you can mount an LED lamp (there are such ready-made lamps), which will inform you that there is power on the lamp.
  • #13 16510413
    Jacek Rutkowski
    Level 28  
    mevelrik wrote:
    Hello,

    I have the following problem to solve. I have a light in the garage and a switch for it. At the other end of the yard I have a lamp that illuminates the entire property. I would like this lamp to turn on with the lighting in the garage. My plan so far has been as follows: radio module + relay. I bought a 433MHz radio module (one for £4) thinking that if I send a high state to the transmitter, I will get a high state in the receiver. Unfortunately after a while instead of 0V I have 1.5V and in addition the transmitter heats up (burns) when I give it a continuous signal. Which transmitter should I buy?
    Distance 70m + thick wall.

    Greetings
    .
    In front of the transmitter you need to use an NE555 or some kind of counter for example which will generate impulses e.g. 10ms every 5 seconds and behind the receiver another NE555 which will extend these impulses to 7-10s. Thanks to this solution, the transmitter will not heat up and the receiver will function correctly. These modules do not transmit a continuous state, only a modulated signal.
    You can also use any circuit that allows transmission coding or ATMelka to make the transmitted signal modulated.
  • #14 16510492
    Zdzisław1980
    Level 26  
    Look for an ON-OFF switch with remote control for 2 separate ON-OFF keys.
    Some simple circuit that will generate a pulse on the on key when the power is on, and generate a pulse on the OFF key when the power is off.
  • #15 16533981
    Daro1003
    Level 34  
    Wouldn't it be easier to change the switch to a bell switch and use a 20zl bistable relay to switch on a local lamp and a radio controller to switch on a distant lamp by sending a pulse from the bell switch.
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Topic summary

The discussion addresses the challenge of remotely switching on a property lamp powered from a separate building, synchronized with a garage light switch, over a 70m distance with thick walls. The initial approach using a basic 433MHz radio module and relay failed due to transmitter overheating and unstable voltage output when continuously transmitting. It was noted that low-cost 433MHz modules are designed for short, pulsed signals rather than continuous transmission. Suggested solutions include using pulse modulation with timer ICs like the NE555 to generate intermittent signals, preventing transmitter overheating and ensuring reliable receiver operation. Alternatives involve employing a bistable relay triggered by a bell switch to send pulses, or using a remote control system with two separate ON-OFF keys to simulate the garage switch state. The Proxima LN radio network controller and Zamel ROP-01 receiver were mentioned as potential components, though the user prefers to avoid additional remote controls and instead use the existing garage switch. The main technical constraints are the separate power supply for the lamp, the need for signal modulation to avoid transmitter damage, and the requirement for the lamp to switch on/off in sync with the garage light without manual remote control operation.
Summary generated by the language model.
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