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Trying to build a simple RF remote control

Discussion in 'Radio and Wireless' started by Renegade, Oct 4, 2009.

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  1. Renegade


    Oct 4, 2009
    First, I'm new at electronics, just thought I should get that out of the way. I picked up this RF receiver and transmitter (not soldered to any circuit board) today, and I want to make a simple remote controller out of them. I really only need to send the state of a switch (on and off). The only information on the label was "M1031 - 40KHZ - 10mm". I've never done a project like this before, and I'd appreciate if someone could link me a circuit diagram. The simpler the better, I'm not trying to do anything complex here. Thanks in advance.
  2. ceolwynn


    Oct 13, 2009
    what I do for simple remote control

    here is the type of solution I use for this kind of challenge...

    My favorite option is a $35 xmit receiver set from Oatley electronics in
    austrailia, set number RX9 and TX9 - they wont let me post the links
    to it, sorry, they must be a little "anti-information" or something ? :)

    the set is of a super high quality, no interferrence and we don't have to
    build it. I have bought about 6 of them this year alone for different projects.

    since it is a 4 channel system you could ad other simple data as well.

    It has an awesome range and is VERY VERY resistant to interferrence
    due to the fact that it uses the high tech code-hoping security algorithm.

    as fas as just monitoring the position of a switch, what I would do is
    either set it up for Polling, say every 30 minutes ? with a "missing pulse"
    circuit on the receiving end...
    -or- trust the switch position sensor and have it only transmit when the
    switch is changed. and use channel one for closed, channel two for
    open, -or- you could use a flip-flop on the receiving end so as to use
    up only one of the 4 available channels.

    another option I like to use for simple easy and affordable remote sensing
    or control, is the wireless doorbells from home depot of lowes building
    supplies, they cost $12 - $15 a set and are pre-bult, and I have used
    them for many sensing / control ideas and hooked them up to a huge
    variety of items even once a stray cat live trap.

    now if I need data... I have used quite a few times, the affordable FM
    bugs xmitters with a tone generator circuit that is modified in pitch either
    up or down by a variable resistor input or series of switches or a shifting
    voltage input. either way the tone xmitted goes up or down based on the
    input sensors changes, and on the receiving end I just need any cheap
    FM receiver and use a frequency -to- voltage converter to display the
    output in whatever format I need.

    if you are interested in any of these options let me know and I will tell
    you what I have learned so far.

    good inventing !!! .// Tom \\.
  3. ceolwynn


    Oct 13, 2009
    I almost forgot !!!

    I also used the oatley sets for transmitting a "condition" ..

    I use a "length-of-transmission" as the data mode...

    for instance, the temperature of my fermenting mead closet, is
    normal... it transmitts a 6 second signal... if the temp is low
    say 68 deg F, the transmitted signal is 4 seconds, if high,
    say 78 degrees F, the transmitted signal is 8 seconds ...

    on the receiving end I use 555 timers of 4, 6, and 8 seconds
    to react to the length of transmitted signal.


    you could use pulses as the data mode ... 2 pulses for
    68 Deg F, 4 pulses for 72 Deg F, and 6 pulses for 78 Deg F.

    there are many ways to skin a electronic cat :)
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