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Ask HN: What do you do with your Raspberry Pi?

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Re: Ask HN: What do you do with your Raspberry Pi?

#881

Post by MrZongle2 »

strags wrote: post #550
1024core wrote: post #540

Earlier quoted context omitted.

I'm thinking of doing the same for my kid. Any photos/description?

It's actually quite a bit louder than this now. Also, the lights aren't quite as infant-retina-searingly-bright as the camera would have you believe. https://www.youtube.com/watch?v=xtE8oE9GOsM Currently it's still running my test code, which just lets him mess with volume/pan/pitch. I need to get around to writing something a bit fancier. Tech deets: It's just a RPi3 with most of the stuff written in Python. I tried…

That's awesome! Great job!

Re: Ask HN: What do you do with your Raspberry Pi?

#882

Post by sparker72678 »

muratsu wrote: post #661
m463 wrote: post #641

Earlier quoted context omitted.

You are a kindred spirit. I have: 2 pi NTP servers - one running a GPS hat + PPS wired up, one using a USB gps receiver. a "workhorse" pi - 2 wired ds18b20 temperature sensors, cron jobs, email generators, weather page generator, connectivity monitor. One pi running piubos + nextcloud. One pi running as a clock. One pi running as a wireless temperature receiver. a few floating pis running media center or retropie or…

Just curious, what kind of cron jobs are you running?

I just went to look at my crontab again. Some highlights (lowlights?):

- Turning lights on/off around the house, because I found cron to be a more reliable scheduling agent that the one built-into my Wave software when I first set it up.

- Testing network performance (ping times to various locations)

- Fetching a mail account and processing the messages for an automation I have setup for some things.

- Updating online weather services with data from my weather station.

- Kicking off data gathering/update jobs.

Re: Ask HN: What do you do with your Raspberry Pi?

#883

Post by [deleted] »

MisterTea wrote: post #397
thecodemonkey wrote: post #95

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 1x Raspberry Pi 3 running Home Assistant with a Z-Wave USB Dongle (Home Automation) 1x Raspberry Pi 3 running OctoPrint (Host/remote-control for 3D Printer) 1x Raspberry Pi 3 running FullPageOS (Full-screen Chromium in kiosk mode) displaying a server statusboard i…

> Next project: 1x Raspberry Pi Zero W to run Unifi Controller Ugh, have fun with the dependency issues. An easy alternative is to run a Unifi docker image. Currently running it from a Debian VM when needed but looking to move it to an alpine vmm on my OpenBSD APU2. The Linux image is the same as the cloud key so you can roll your own cloud key and use the unifi app. Here is the image I use though there are others: h…

[deleted]

Re: Ask HN: What do you do with your Raspberry Pi?

#885

Post by sparker72678 »

googcheng wrote: post #669
sparker72678 wrote: post #527

I 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…

be interesting in weather monitoring, could you describe it more detail

I have a Pi connected to a BME280 breakout board that I got from Adafruit (https://www.adafruit.com/product/2652). It's also connected to a Dallas 18B20 temperature sensor. The sensors are outdoors in a small actively-ventilated enclosure I made. The Pi is indoors, and the wires run through the wall.

Why 2 temperature sensors? Turns out the BME280 runs about 2°F hot, and the 18B20 is right on, so I end up using the 18B20 as my primary temp sensor.

Every minute a cronjob runs and the Pi takes readings from the sensors and stores them locally.

Then, I have another Pi that, every minute, reads those values and stores them in a long-term database (I have about 5 years of weather data at this point). The long-term database is running a custom Rails app I wrote to report on the data and show graphs, compare weather over years, etc.

In theory this could all live in a single Pi, but for various legacy reasons I ended up with a dedicated Pi for data processing, and a dedicated Pi for data gathering.

Re: Ask HN: What do you do with your Raspberry Pi?

#886

Post by sparker72678 »

robertAngst wrote: post #813
sparker72678 wrote: post #527

I 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…

Seems like a Pi is overkill for a few of these, why not a micro?

Absolutely overkill for most of these things, but I've been managing linux servers for 20 years now and find it really easy and fast to get a Pi up and running to do what I want.

There's also some efficiencies from having everything on the same hardware platform.

But mostly it's just comfortable for me.

Re: Ask HN: What do you do with your Raspberry Pi?

#888

Post by sparker72678 »

m463 wrote: post #641
sparker72678 wrote: post #527

I 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…

You are a kindred spirit. I have: 2 pi NTP servers - one running a GPS hat + PPS wired up, one using a USB gps receiver. a "workhorse" pi - 2 wired ds18b20 temperature sensors, cron jobs, email generators, weather page generator, connectivity monitor. One pi running piubos + nextcloud. One pi running as a clock. One pi running as a wireless temperature receiver. a few floating pis running media center or retropie or…

Maybe there should be a help group for people like us?

Re: Ask HN: What do you do with your Raspberry Pi?

#889

Post by msoucy »

ryanmercer wrote: post #830
strags wrote: post #449

I discovered that my 17-month old son loves to mess with stereo controls. So I bought a few rotary encoders and neo-pixel rings - build a wooden enclosure with a plastic faceplate, and wrote some code to generate fancy light and audio effects when he turns/clicks the knobs. He loves it.

Tread carefully, you're creating a young Look Mum No Computer! https://www.youtube.com/channel/UCafxR2HWJRmMfSdyZXvZMTw

Well now that I've seen the Furby Organ I'm not going to sleep tonight...
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