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  • True, Denmark has only few car thefts, but I'm completely in love with this Arduino thing and this is a really good start-up project for learning a lot about relays, regulators, etc. etc. so that's the main reason for building this.

    True, Denmark has only few car thefts, but I'm completely in love with this Arduino thing and this is a really good start-up project for learning a lot about relays, regulators, etc. etc. so that's the main reason for building this.I don't want to use anything scrapped - I want to ensure that all projects i work on can potentially be scaled in case it turns out to be a good idea.

    Ha ha... Good point - although that mode would be quite funny here in Copenhagen as well... Theifs desperately trying to cover themselves behind the wheel while the siren and horn is blasting...

    Ha ha... Good point - although that mode would be quite funny here in Copenhagen as well. Will think about that!

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  • Hi Downunder35m.THANKS for the reply - really great to get some input on this!1. I've now installed a regulator and set it for 5V (4.5V to be on the safe side and connected it to RAW). It's a good point that perhaps a fixed regulator will do the job better, so I'll look in to that once I have everything running in the test setup.2. Agree. Low power devices must be the way to go and maybe a 12V RF device in front powering the Arduino on/off would be silly since the device usually would be on when the car is turned off, thus drawing power... That means that I'm on the right track in bullet 1, when I installed the 5V regulator, except it should be fixed output voltage and not adjustable.I'm a bit confused when it comes to the modules that are powered by the RF energy of the active remote ...

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    Hi Downunder35m.THANKS for the reply - really great to get some input on this!1. I've now installed a regulator and set it for 5V (4.5V to be on the safe side and connected it to RAW). It's a good point that perhaps a fixed regulator will do the job better, so I'll look in to that once I have everything running in the test setup.2. Agree. Low power devices must be the way to go and maybe a 12V RF device in front powering the Arduino on/off would be silly since the device usually would be on when the car is turned off, thus drawing power... That means that I'm on the right track in bullet 1, when I installed the 5V regulator, except it should be fixed output voltage and not adjustable.I'm a bit confused when it comes to the modules that are powered by the RF energy of the active remote and that it (as I understand it) is a great way to optimize. Can you elaborate for me - that sounds really interesting?Also, you are probably right about the TIP122, it was all I had in my drawer. Do you have an advice on what I could use instead to further minimize power consumption?You also mention internal and external components. Do you mean that me having a regulator as a separate device is something I should avoid?3. Good point about only testing once or twice a second - I'll add that.4. Excellent - some good ideas - thanks!And... I'll definitely add an Instructable once I have most of the project complete - have already gathered some of the pictures needed. :-)

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