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Ask HN: What do you do with your Raspberry Pi?
571–580 of 1001 posts
Re: Ask HN: What do you do with your Raspberry Pi?
#572Experiments 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
Which sensor did you use to measure air quality?
Don’t recall. Nova something. Like 15 bucks off amazon. Looking at the pictures they all seem to be same thing rebranded.
Measures 2.5 and 10. Def works ie reacts to window being opened but I wouldn’t stake my life on accuracy
Good for a project though
Re: Ask HN: What do you do with your Raspberry Pi?
#573Earlier quoted context omitted.
> 1x Raspberry Pi 3 installed in my car within the internal network as a bastion box and to run software that let's my interact with the entertainment system Can you go in more depth about this? How did you integrate it with the entertainment system, and what do specifically do you do with it?
Seconded. Please tell us more. I believe Ford has some open stuff you can connect a laptop to.
That "open stuff" generally speaking is either an ODB-II port (which as I understand it is generally limited in diagnostics and communication in modern cars) and the other is the C2 Radio harness (which plugs into the back of the infotainment system.) These systems exist on all modern cars.
The C2 radio port gets you direct access to the vehicle's CAN-Bus system, which itself is generally segmented into a high frequency (safety critical systems: drivetrain, drive-by-wire steering if applicable, braking, etc) and a low frequency system (door locks, sound system, windows, etc.) If you reverse engineer your vehicle's CAN protocol (each manufacturer uses their own codes on a standard CAN transport protocol), you can issue commands to it directly from your Pi.
Re: Ask HN: What do you do with your Raspberry Pi?
#574I have an old Raspberry Pi 1 that runs headless raspbian with a set of cheap speakers plugged into it and an old usb wifi adaptor. It has only one purpose: to play a wav file of a telephone ringing for one minute. My spouse does not ever have the ringer on her cell phone. So when I am out and I need her to look at her phone, I VPN in to my home network, ssh into the pi using Terminus on my iphone, and 'aplay' the wav…
You could automate this even more with a Twilio number, ngrok running on the Pi and a small webserver to trigger the audio playback. Then instead of having to ssh in you can just send a text.
Or if you wanted to get even cheaper, depending on the carrier, you could text a personal E-Mail server.
Re: Ask HN: What do you do with your Raspberry Pi?
#575I have an old Raspberry Pi 1 that runs headless raspbian with a set of cheap speakers plugged into it and an old usb wifi adaptor. It has only one purpose: to play a wav file of a telephone ringing for one minute. My spouse does not ever have the ringer on her cell phone. So when I am out and I need her to look at her phone, I VPN in to my home network, ssh into the pi using Terminus on my iphone, and 'aplay' the wav…
You could automate this even more with a Twilio number, ngrok running on the Pi and a small webserver to trigger the audio playback. Then instead of having to ssh in you can just send a text.
Is ngrok the new dnat?
Re: Ask HN: What do you do with your Raspberry Pi?
#576I have 13 in service right now: - Outdoor irrigation control via OpenSprinkler Pi: https://opensprinkler.com/product/opensprinkler-pi/ - Z-Wave home automation via ZWay: https://z-wave.me/products/razberry/ - 2 Custom HAVC thermostats using: https://github.com/jeffmcfadden/PiThermostat - An NTP server with GPS attached for a time source. - 2 for weather monitoring (one directly attached to sensors, one that aggregate…
>2 for weather monitoring (one directly attached to sensors, one that aggregates the data from a few sources and provides reporting) So, I hear people doing this alot. However what exactly does this help with? Like, is the extra information really more useful than just the standard old TV weather forecast?
I do this primarily because I'm a weather geek. I don't _need_ this at all.
I do find it interesting to see the differences in temperature (and humidity, etc.) in the microclimate around my house compared to the city and greater metro area.
I also use the data to measure the performance of my home's HVAC system. Doing this _does_ require real-time local temperature and humidity data. But again, this is all for fun.
I just enjoy it.
Re: Ask HN: What do you do with your Raspberry Pi?
#577openHAB home automation.
The Raspberry Pi is a recommended base for openHAB and a prepared image is provided for easy use.
I use more for other purposes but openHAB is the important one. The Rpi is also nice for it as many hardware receivers/transmitters are compatible
Re: Ask HN: What do you do with your Raspberry Pi?
#578Earlier quoted context omitted.
>2 for weather monitoring (one directly attached to sensors, one that aggregates the data from a few sources and provides reporting) So, I hear people doing this alot. However what exactly does this help with? Like, is the extra information really more useful than just the standard old TV weather forecast?
I do this primarily because I'm a weather geek. I don't _need_ this at all. I do find it interesting to see the differences in temperature (and humidity, etc.) in the microclimate around my house compared to the city and greater metro area. I also use the data to measure the performance of my home's HVAC system. Doing this _does_ require real-time local temperature and humidity data. But again, this is all for fun. I…
What sort of sensors are available? Just the stuff off the pi site?
Re: Ask HN: What do you do with your Raspberry Pi?
#579i created a digital scoreboard that can be hooked up to a large led for sporting events, can be used.from rpi 2, 3 to a, b, and zero
Re: Ask HN: What do you do with your Raspberry Pi?
#580I used RBPs when working on museums. For example as mini video players, to connect sensors and trigger a video or turn on some light, etc.
Also to serve as RS232 to wifi adapters. You'd be surprised how much stuff still uses serial to interface with the outside world (tvs, projectors, audio switchers, etc).