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A project log for PhotonHome - AC Power IoT Homebase

The PhotonHome is the next step in bringing the Photon environment to AC powered applications

sako0938sako0938 12/21/2015 at 00:040 Comments

Just wanted to let everyone know that progress has not necessarily halted, though I lost a lot of motivation to post when I didn't advanced in the Hack-A-Day prize.

New Developments: I have spent so much time creating PCBs for this project, when I have mostly looked over pre-built solutions and using that in the project. I have finally caved... And I think it was a good learning experience to try going the hard way though. I've decided to use the Particle Photon Relay Shield instead of making my own relay PCB. The annoying part about their board is the connector they use only allows using smaller gauge wire, and the connector doesn't have common entry point, which would make sense, seeing as they are advertising as good to use for AC. But check out the new entry to the family!

The board on the right is the Photon Relay Shield.

Also, while the SparkFun Photon Weather Station was pretty cool, what I really need is only NeoPixel LED output, and a temperature and humidity sensor. The DHT22 is cheap and easy, so I made a 3D printed body for it, and plan on putting a tiny circuit board inside, which will provide the 10K pullup for the data line and then just a 3-wire JST output.

Finally! Woo, that was a lot of pictures... I had a class this semester at CU Boulder called Democracy in the Digital Era, and we made the "Voting Booth of the Future", look up CU Boulder ATLAS Expo! But I made a dual NeoPixel strip, and single button input PCB, for the Photon. I plan on modifying this PCB and getting it professionally printed, but also add an input for the 3-wire DHT22 sensor. I have 2 more level-shifter outputs remaining, should I add more NeoPixel outputs?

The board on the right is what I made for that class, and plan on modifying super easily. As for the the gray 4-gang case, I drilled a hole for my AC power input, and that fits nicely. All the wires inside are connected using nice quick-connect or ring-terminals, which is why I'd love a better connector on the Relay Shield!!!

Let me know what you think of the progress! The end goal of this project has changed just slightly, its Winter Break so maybe I'll get around to updating all of that.

:)

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