https://github.com/deepsyx/home-automation That's what I do :)
Ask HN: What do you do with your Raspberry Pi?
421–430 of 1001 posts
Re: Ask HN: What do you do with your Raspberry Pi?
#422Coincidentally there’s another story on the front page about using a Raspberry Pi to hack NASA: https://news.ycombinator.com/item?id=20264774
thats not a coincidence. That's a well coordinated product launch with a good PR agency doing it's job
Re: Ask HN: What do you do with your Raspberry Pi?
#423Use it to bring Android Auto to my old car stereo:
https://medium.com/@bendavey/bringing-android-auto-to-audi-n...
Re: Ask HN: What do you do with your Raspberry Pi?
#424Earlier quoted context omitted.
oh jeez the SD card story just gave me flashbacks. I changed networks (uni to home) and the RPi running pihole would constantly keep my uni DNS settings after a restart. Took me a good few hours to figure it out given that I thought the DNS settings were getting copied in from elsewhere on startup. I think i finally figured it out after i re-installed rapsbian from scratch and to my horror was booted in to the old sy…
The SD card was failing to write? It would have blown my mind if I reinstalled raspbian and the old config popped up. I’ll have to keep this in mind.
Yes in my case the pi would crash, and the SD card changes would revert. I don't know if its changed or not, but at the time you couldn't check uptime because the lack of a hardware clock meant it didn't know the time when it booted.
It took a while to figure out it was crashing everyday, probably due to the bad card, and the writes weren't taking. After more recent problems with other SD cards I'm trying the new SanDisk 8GB MSDHC Class 10 UHS-I U1 Industrial MLC micro cards after seeing them mentioned here.
Re: Ask HN: What do you do with your Raspberry Pi?
#425I have a wall mounted 20" TV in my garage above the corner of my workbench. Use it to look up stuff or watch how to videos or just play music.
I love minimalism and part of my minimalism approach is not having vulnerable things in vulnerable places. So if the Pi gets destroyed because a workshop is fairly volatile, no big deal.
Re: Ask HN: What do you do with your Raspberry Pi?
#426I don't have a project yet -- but one I'm really interested in is having a Raspberry Pi run and store historical data from an air quality (particle) measurement sensor. I'm hoping to measure how the air quality outside my home (near a freeway) changes during the day and night with traffic, and also how the indoor air quality is impacted. It outputs UART 9600 baud data ( https://sensing.honeywell.com/honeywell-sensing…
Uart is just serial, you’d connect it to your serial pins on the pi and read serial from Linux like normal. Data is whatever the protocol Honeywell is using. Could be any range of things sent in a predictable pattern. Could be timestamp,temp,air quality,status, and then some kind of delimiter like newline or eor. Note the pi devices use 3.3 volts instead of 5 so you have to make sure Honeywell is not sending too much…
Minor clarification: UART is “just serial” but when people say “serial” they usually mean RS-232 or RS-422, and these don’t use 0V / 5V like you would for 5V logic. They use anywhere from 3-25V signals, with positive voltages for zeroes and negative voltages for ones. Your PC, if it has a serial port on it, probably sends around +/- 13V (this is typical, IIRC).
So don’t hook up 5V logic parts to a serial interface. If you look at RS-232 interface chips they have integrated charge pumps and external capacitors to generate the Tx voltages from Vcc.
Re: Ask HN: What do you do with your Raspberry Pi?
#427I live in an apartment with quite strict fire-protection standards. Due to the fact that I have a cat that absolutly loves to go outside, I needed to find a solution for him to get outside without a catdoor trough my door. So I installed a fire-protecion-approved door drive that is hooked to a raspberry pi. Another raspberry pi then analyzes a video stream and detects my cat. If my cat is in the frame for n amount of…
That’s amazing
Re: Ask HN: What do you do with your Raspberry Pi?
#428I live in an apartment with quite strict fire-protection standards. Due to the fact that I have a cat that absolutly loves to go outside, I needed to find a solution for him to get outside without a catdoor trough my door. So I installed a fire-protecion-approved door drive that is hooked to a raspberry pi. Another raspberry pi then analyzes a video stream and detects my cat. If my cat is in the frame for n amount of…
I could actually use exactly that. Do you have a blog outlining how you did it, or the code on github by any chance?
Re: Ask HN: What do you do with your Raspberry Pi?
#429I live in an apartment with quite strict fire-protection standards. Due to the fact that I have a cat that absolutly loves to go outside, I needed to find a solution for him to get outside without a catdoor trough my door. So I installed a fire-protecion-approved door drive that is hooked to a raspberry pi. Another raspberry pi then analyzes a video stream and detects my cat. If my cat is in the frame for n amount of…
Sounds like there is a market for fire standard approved cat doors! ;)
I loved reading what you are doing with the Pi though.
Re: Ask HN: What do you do with your Raspberry Pi?
#430Experiments mostly.
Yesterday I tried steam link. Previously a vpn AP. Also a air quality mon. And a flightaware station. And a file server.
ie i Format it quite often and start from scratch