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[1]: https://www.reddit.com/r/raspberry_pi/comments/bwdv36/a_smar...
Using several Raspberry Pis to monitor CO2 levels in my house. Each Raspberry Pi has a CO2 sensor - wrote a little Python script to retrieve data from sensor and upload it to a server Which is also a Raspberry Pi.
What sensor did you use? All the ones I’ve seen tend to be pretty expensive
Earlier quoted context omitted.
I could actually use exactly that. Do you have a blog outlining how you did it, or the code on github by any chance?
No sadly not. I'd love to write about it but my English is just not good enough to write a compelling story. Writing it in German and then having it translated is always a bit of a hassle. But I may consider it. At the moment I have an offer of the door drive manufacturer for doing a "home story" about the solution. If that will happen, it will definitely be released in English. I will open source everything once I'm…
Wardriving rig with GPS puck that runs kismet, airbash, and bettercap to steal PMKIDs and also 4-way handshakes from nearby networks for offline cracking and data visualization. Also has UPS supply for backup power.
An aborted project to make a Hindustani raga time-of-day player, based on a Pi Zero W with a 128GB SD card, that would stream a continuous loop of music appropriate to the specific time of day (8 distinct periods), via a network interface such as Plex. But it was too complicated.
I've also used an RPi3 as a node in https://github.com/lennartkoopmann/nzyme.
1x Pilight (working together with HomeAssistant in a different machine)
1x sandbox (testing software, web stuff, etc)
1x Asterisk/RasPBX
1x backup manager
1x honeypot
1x bastion host
1x media player (also integrated with HA)
Using several Raspberry Pis to monitor CO2 levels in my house. Each Raspberry Pi has a CO2 sensor - wrote a little Python script to retrieve data from sensor and upload it to a server Which is also a Raspberry Pi.
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.
I'm thinking of doing the same for my kid. Any photos/description?
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 to get a bunch of Python audio libs working, but gave up and wrote my own C++ module for sample mixing. The NeoPixel rings are driven via the SPI output, and the rotary encoders/switches are just hooked up to random GPIOs.