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Ask HN: Share Your Raspberry Pi Project

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Re: Ask HN: Share Your Raspberry Pi Project

#71
DeckLights !

With an LED strip, some carpentry, an Arduino, and rpi, I've brightend up my deck a little bit. The rpi is there to program the arduino while embedded and to have a web interface to control the lights. Still to do was to get Homebridge (which is working on the rpi) to turn the lights on and off using Siri.

http://imgur.com/a/E4lbU

https://www.youtube.com/watch?v=ww1q248jc7Q

https://github.com/kejaed/deckLights/blob/master/projectNote...

Re: Ask HN: Share Your Raspberry Pi Project

#72
I brew beer with mine[1]. I use a CHIP to control an old fridge as a fermentation chamber.

For both systems I'm using CraftBeerPi[2], a python project with a pretty active community around it.

I wrote about it on opensource.com[3] and it was pretty popular, which surprised me a little bit. But I guess a lot of people in our community like beer :). I'm always trying to figure out how to make brewing my career without the related massive cut in income (please share any great ideas on that!)

[1]: http://localconspiracy.com/2016/12/electric-brewery.html [2]: https://github.com/Manuel83/craftbeerpi [3]: https://opensource.com/article/17/7/brewing-beer-python-and-...

Re: Ask HN: Share Your Raspberry Pi Project

#74
post #63
post #25

Although not strictly a Raspberry Pi project, I have a couple C.H.I.P. boards[1] scattered throughout my apartment collecting temperature and humidity readings (using a HIH8120 sensor[2]) and feeding it to my Raspberry Pi which runs InfluxDB and Chronograf[3] to store and display a simple dashboard. The end result looks like this: http://i.imgur.com/cIrhSUq.png [1]: https://getchip.com/ [2]: https://sensing.honeywell…

What language did you end up using to access the sensors? I've been ~hoping~ to use Go to access the GPIO pins, but haven't had much success - any suggestions?

Check out https://periph.io/, which makes GPIO access easy :)

Re: Ask HN: Share Your Raspberry Pi Project

#75
post #72

I brew beer with mine[1]. I use a CHIP to control an old fridge as a fermentation chamber. For both systems I'm using CraftBeerPi[2], a python project with a pretty active community around it. I wrote about it on opensource.com[3] and it was pretty popular, which surprised me a little bit. But I guess a lot of people in our community like beer :). I'm always trying to figure out how to make brewing my career without…

Fellow beer brewer here!

I wrote my own small weather service, http://www.brilcast.com/, and re purposed the waterproof sensor to help track and record the process from lautering/sparging all the way to transfer to primary fermentation.

The setup is simple. Sensor code is written in Python, then it's sent to a SQLite database running on a Flask webserver. The frontend uses D3.js to visualize the data. The entire service is hosted on Pythonanywhere. It's quite spartan, but it works well. https://github.com/williamBartos/brilCast

Re: Ask HN: Share Your Raspberry Pi Project

#76
post #63
post #25

Although not strictly a Raspberry Pi project, I have a couple C.H.I.P. boards[1] scattered throughout my apartment collecting temperature and humidity readings (using a HIH8120 sensor[2]) and feeding it to my Raspberry Pi which runs InfluxDB and Chronograf[3] to store and display a simple dashboard. The end result looks like this: http://i.imgur.com/cIrhSUq.png [1]: https://getchip.com/ [2]: https://sensing.honeywell…

What language did you end up using to access the sensors? I've been ~hoping~ to use Go to access the GPIO pins, but haven't had much success - any suggestions?

I've used https://github.com/stianeikeland/go-rpio to control my garage doors and this library https://github.com/kidoman/embd has some more advanced features which I've used for a thermostat solution.

Re: Ask HN: Share Your Raspberry Pi Project

#77
Is anyone using this to sense water levels (or just the presence of water)? I'd like to implement a doohickey that monitors water levels in a water storage tank which is not easily accessible. So it must be very reliable, and install-and-forget, as access is a pain in the ass.

Re: Ask HN: Share Your Raspberry Pi Project

#78
post #7

I used one to build a photobooth for my wedding. The raspberry pi controls a DSLR camera to take 4 photos, stitches them into a 4x6, prints the photo and uploads everything to a Google Photos album which was displayed live on a projector.

I would be insanely interested in a thorough write-up of this. My mother is getting married in a few months and it would be incredible to build for her and her fiance!

Re: Ask HN: Share Your Raspberry Pi Project

#79
post #25

Although not strictly a Raspberry Pi project, I have a couple C.H.I.P. boards[1] scattered throughout my apartment collecting temperature and humidity readings (using a HIH8120 sensor[2]) and feeding it to my Raspberry Pi which runs InfluxDB and Chronograf[3] to store and display a simple dashboard. The end result looks like this: http://i.imgur.com/cIrhSUq.png [1]: https://getchip.com/ [2]: https://sensing.honeywell…

I'm planning on doing pretty much the same thing. A couple of questions:

1. Why not just run InfluxDB and Chronograf on one of the CHIPs?

2. How are you sending data to the Pi?

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