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    Variable time on/off switch circuit, for model tree-house project

    Hi GUYS, PROBLEM SOLVED, thanks heaps for your input I love learning new stuff (I am a retired Civil Eng), I bought a cheap digital multi-meter and started snooping around to understand better how the module I bought works, and as you thought it does operates on less voltage too. So I ordered a...
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    Variable time on/off switch circuit, for model tree-house project

    Thanks Bluejets... 'Hack it' seems impossible to me, are you saying remove the large blue relay box and connect a 555 somehow? I am thinking it would be easier to use a breadboard with a 555 and build it?
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    Variable time on/off switch circuit, for model tree-house project

    I should let you see my model tree house so you know what the project is for.... ... keen to hear from you, Paul :)
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    Variable time on/off switch circuit, for model tree-house project

    Hi everyone... Here was my relay module $3.50 no big deal, close, but one issue (relay power usage, as I now understand) that I need to solve... perhaps a very simple alternative circuit I hope, to using this more generic multi-use module. thx Paul
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    Variable time on/off switch circuit, for model tree-house project

    Hi Bluejets... They are 16 x LEDs and 4.5V drives that circuit, it would last about 20 hours The small 12V battery was used to drive the relay switch... and died very quickly. My desire to have an on/off switch in the circuit is twofold... 1) to have the lights come on to impress the viewer...
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    Variable time on/off switch circuit, for model tree-house project

    Hi AK, The current draw from the lights is about 150-200 mA that is all, they are LEDs and the 3 AAs will last about 20 hours if constantly on, so my desire to have an on/off switch in the circuit is twofold... 1) to have the lights come on to impress the viewer, and 2) to have the 4.5V source...
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    Variable time on/off switch circuit, for model tree-house project

    Hi Bob, yes it is using a relay, thanks for your good guess... so I do need another solution to achieve the 1min or so ON / 5min or so OFF. Do you know if there is a simple solution to this? The Lights are fed by 3 AA's giving 4.5V at about 150mA, so I need the occasionally on for the show, so...
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    Variable time on/off switch circuit, for model tree-house project

    I have a built model tree-house ( about 1m high ) and it even has 16 small lights 4.5V ( 3xAA's ) placed inside the cabins and going up the staircase etc etc. Well, I am displaying it in an arts and crafts show in about 6 weeks, and I would like to fit a small circuit that will turn the lights...
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