SuperHouseTV #3: Power-over-Ethernet for Arduino Home Automation

I’m using Ethernet extensively in my Arduino home automation system for communication with devices distributed around the house, so being able to also provide power to those devices over the same network cable is a big time saver. Until now I’ve been using a “DIY” approach to Power-over-Ethernet (PoE) with midspan injectors sending about 10-12V down the wire, but I’m now converting it all over to use Netgear switches with 802.3af (48V) PoE support built in.

This episode covers some of the options for PoE with Arduino, and demonstrates how you can do it both in a cheap DIY method and using commercial PoE switches.

Duration : 0:22:49


[youtube KL9Te_hSiOA]

9 thoughts on “SuperHouseTV #3: Power-over-Ethernet for Arduino Home Automation

  1. I stumbled across …
    I stumbled across this the other night on my iPhone and watched your 3 videos. You have a natural talent for? explaining things. I was hoping to see more videos on your microcontroller house project. It looks like some amazing stuff. I hope to get to see the rest of this series unfold.

  2. Thanks, I …
    Thanks, I appreciate it!? I hadn’t seen that Facebook group before but I’ll check it out

  3. Yes, and the short …
    Yes, and the short answer is so that there’s no need to maintain a concept of “state”. A few people have asked this question and it lead to an interesting discussion on the Freetronics forum about messaging systems and architecture, but unfortunately I can’t post the URL in a YouTube comment.? If you search for “Freetronics forum superhouse” you’ll get there though

  4. Actually I …
    Actually I sacrificed two! They’re the perfect dimensions to hold the PCB the correct distance back for the buttons? to be flush with the faceplate. It feels wrong using Lego for that purpose though so I keep intending to print some spacers on a Makerbot.

  5. Nice tutorial…I …
    Nice tutorial…I just want to inform you that we have posted your tutorial on our Arduino facebook page (just type ‘Faceuino’ in facebook search box). Feel free to join us? and answer community questions.

    We look forward to seeing more excellent tutorials from you 🙂

    Sincerely,
    Faceuino team

  6. I messed up! A …
    I messed up! A forum user just pointed out that at 10:30 the 5th example is wrong, I multiple by 50 (for Volts) instead of 10 (for Ohms). Doh! The final number is? correct, but the working isn’t.

  7. Excellent. I see …
    Excellent. I see you sacrificed? a lego block in the light switch though.

  8. Nice work. A …
    Nice work. A question are you using two buttons on your control pads as one button for on and another for off? Any reason your not using them in a toggle fashion if you? are?

  9. The cheatsheet …
    The cheatsheet stuck above the whiteboard is very? clever. 🙂

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