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Comment by famousactress | Hacker News Reader

Got my Pi 2 recently, and it's awesome how much snappier it runs. I've only used them to spin up game console emulator appliances so far. Would love to hear about projects among the HN crowd. I'd really like to use one for something more interesting!

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My wife's Hedgehog tweets how much he runs every night (https://twitter.com/runhedgie). Hooked up a RPi NoIR camera, so a video is included in the tweet as well. All the code is here: https://github.com/jlhonora/iot

This is great! Thanks for sharing, I just got a bird feeder, this will be a perfect starting point for shooting images.

Cool project! I guess that with the Pi2 you could do some basic image processing to detect changes and then decide which footage is interesting.

Awesome. What's in it for Antu? Or does he just like running on a treadmill? :) very cool.

I have a raspberry pi A I think it is, hooked up with the camera taking timelapses every day and automated posting to youtube. Gave me an excuse to play with ember for the frontend too -> http://timelapses.psdavey.com

Current project for the pi2 is hooking it up over a 3G modem for remote monitoring of a study site for a science friend of mind. I want to be able for her to send an SMS and for the PI to send back a picture. All the bits are in place, just need to make it nice!.

Love the pi - so much fun!

Nice timelapses! Is there a way to regulate the color settings of the camera?

Probably, the issue is that there's reflection of the double_ish_but_not_really_this_is_new_zealand glazed glass. Also, I take a ruthless approach to "fun" on small side projects and rather it works than is perfect. I did try putting a box around it but it wasn't really that workable as it sits in the corner of the lounge and I don't want it to be too bulky.

What sort of colour settings would you tweak?

p.s. if any other pi-timelapse people are out there, I would be quite keen at some point to open up the API so that you can post links to your videos too.. then we can have a google map to all the timelapses and it'd be just great! :D

p.p.s. did have fun using the python http://rhodesmill.org/pyephem/ to calculate the "Nautical Sunset - who knew?" so that it will properly adjust rather than the crude approach of a cron-job with a large enough bracket!

Love side projects :)

I use a Pi 2 to run a simple intranet at my house that acts as a portal to various network services, a B that I'm using to experiment with hydroponics automation and exposing sensor data over a REST API, and a B+ that I hooked up to Adafruit's thermal printer to make a GitHub-webhook-powered printer that prints a physical ticket when the issue gets assigned to someone.

Have you published anything about your hydroponics automation? I'm fairly interested in eventually automating an aquaponic garden/farm with Pis.

I haven't yet, unfortunately the project has been on the backburner the last year or two since I've been so busy with other things. So far I've basically hooked up a relay board with an I2C GPIO extender, and use the Pi to toggle relays for lights and pumps. I also have an Arduino hooked up via serial that acts as an environment sensor, logging TDS, pH, light status (with a basic photoresistor, although this could be expanded to a fancy color temp sensor), and temp+humidity. It also monitors water level via a float switch. When the float switch is triggered, it adds more water. This naturally brings the TDS down, which triggers relays for peristaltic pumps to add a given ratio of nutrients.

The goal is to have a RESTful API service running on the Pi so that I could deploy one Pi+environment sensor setup per reservoir with a basic js app to monitor variables and set the timers and nutrient schedule, and if necessary aggregate that data into a centralized management frontend for multiple reservoirs.

I used my RPi to attempt to monitor the fermentation of my beer, by making use of a time-of-flight sensor attached to the Pi, to measure the displacement of a hydrometer - https://www.anfractuosity.com/projects/zymeter-simple/

I use my 1st gen Pi to monitor the temperature in my BBQ smoker and host a single page web application to display the data over wifi.

I haven't touched the project in a while, but with summer quickly approaching I think it's time.

I don't think I'll see much improvement using the Pi 2, but hey, it can't hurt to upgragde :)

I use my Pi to send AIS data to marinetraffic.com. It also allows you to send virtual AIS data, for those that don't have a real AIS transmitter. You won't be visible to the ships but you'll be visible to those using AIS apps.

Our station: http://www.marinetraffic.com/en/ais/details/stations/2567

I'm in the early stages of building an application that uses the camera module and OpenCV to recognise gestures and generate audio effects. Kind of head/hand operated synthesizer. Maybe hook-up a video projector and throw-in some video effects too.

Secondary objective is to renew my acquaintance with C/C++ after years of mainly using managed languages, and to learn modern language features.

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