Automated Lights - Serious battery drainage - need a solution

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i attempting build home automation network. network consist of base station arduino+ethernet shield+nrf24l01 2.4 ghz radio module. other devices far 3way wall switches consist of arduino+motion sensor+3 buttons+ssr relay+rf module. main focus of devices can replace existing home's outlets , wall switches.

the problem.

for obvious reasons, plugging wall wort light switch serious eye sore. base on wiring, dont think there way power arduino 120v supply in switch (to knowledge). temporary solution, threw 9v battery in worked fine. unfortunately, after 3 hours, dead. square one.

how can keep arduino running @ times without requiring major wiring , or wall surgery?



9v batteries low milliamps generally, dedicated sla 6v & 12v.
also power saving modes nick gammon, arduino power hungry lil monster.
i looking links.

http://www.gammon.com.au/forum/?id=11497


Arduino Forum > Using Arduino > Project Guidance > Automated Lights - Serious battery drainage - need a solution


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