Show HN: I built this notifying device – electronics, code, design, marketing

Re:Show HN: I built this notifying device – electronics, cod... by motyar on Thursday April 03, 2014 @06:03AM (#7521864)

I really need to understand and learn how it works on such less power. Kudos.

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Re:Show HN: I built this notifying device – electronics, cod... by clement87 on Thursday April 03, 2014 @06:10AM (#7521885)

Simple, when you open your door, the Node wakes up during 40ms, transmits at 40mA to the Hub and goes back to sleep consuming less than 1uA. You can calculate the battery life yourself: http://oregonembedded.com/batterycalc.htm

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