Ask HN: What did you build with your RaspberryPI? • Hacker News Board

Re: Ask HN: What did you build with your RaspberryPI?

#11

Post by astoellis » Fri, Apr 06, 2018, 11:25 PM UTC

I wrote a few bash scripts with my pi and a remote NodeJS server to capture timelapse photos of my jalapeno plant growing and compiled them with ffmpeg.

Here's my writeup if anyone's interested, and a few gifs of the results.

writeup: https://blog.codelemur.com/pepper-pics/

results: (desktop users) https://gfycat.com/gifs/detail/SelfishVillainousAustrianpins... (mobile users) https://thumbs.gfycat.com/SelfishVillainousAustrianpinscher-...

Re: Ask HN: What did you build with your RaspberryPI?

#12

Post by p0d » Sat, Apr 07, 2018, 7:42 AM UTC

A heating system, thermostat, for my shed.

I hooked up a temperature sensor and relay to control a 500w heater in my shed office. A Python script checks the temperature every five minutes using cron and turns the heater off/on.

I also keep graphs. I only work in the shed on Thursdays/Fridays which are reflected in my graphs.

http://shed.chrismatchett.co.uk

Re: Ask HN: What did you build with your RaspberryPI?

#13

Post by Odenwaelder » Sat, Apr 07, 2018, 5:07 PM UTC

I built a smart home system with FHEM and HomeMatic for my second flat. I was able to turn on the heating, set and monitor the temperature. This saved my lots of energy costs compared to a timer-based system, as well as many cold nights because the heating didn't turn on at the right time. Neither the flat, nor the smart home system still exist. Once I move into a new flat, I'll build another one.

Re: Ask HN: What did you build with your RaspberryPI?

#14

Post by interatx » Sat, Apr 07, 2018, 10:06 PM UTC

I've probably abused it too much but its shocking how much it load it can bare.

* Ebook Server

* Ad Block via DNS

* Router (needed me to get an expensive wifi receiver) over VPN

* Mini build system to publish my blog

* Auto-backs up my NAS box to S3 / Glacier (and then test-restore the latest backup) every month

* Auto-emails me based on a wide variety cron-jobs that check the weather, stock market, rss feeds, etc

* Grabs by RSS feeds and bookmarks

* Offline cache for some stuff

* Downloads videos for later reference

* Automatically texts me when I've not written anything worthwhile (in code or blog) for a while

[edit]

* Using it to teach python / basic programming

Re: Ask HN: What did you build with your RaspberryPI?

#15

Post by Rjevski » Sat, Apr 07, 2018, 11:47 PM UTC

darienbc wrote: post #3

https://www.wiforms.com

This is actually a neat idea, though the design of the form page could've been better.