861–870 of 1001 posts
I have a (basically non-existent) side business selling LED strips and RPi lighting controllers for surfboards! If you've seem some viral videos with guys surfing around at night, they were probably using my gear :-) Briefly put, I use the Glediator and Jinx! control software on an RPi, which communicates with an Arduino, which drives the LEDs. I put them in a permanently sealed box, water proof it as much as I possi…
I started a company that constructed booths which used 70 accurately sync'd Pis with custom PiCams (fitted with lenses) to take pictures of human subjects, for turning them into avatars like this: https://sketchfab.com/3d-models/pete-swagger-walk-a55d807de1... At the beginning of the project, I'd barely powered up the Pis I had collecting dust in my drawer. By the end, I was a legitimate domain expert in several nich…
What you call UBEC is just a switch mode DC-DC buck converter. They are used everywhere in electronics, and you could probably save money buying general puprose 5V buck converter modules instead of modules made specifically for RC. Anyway, that's very interesting info about supply voltage affecting Raspberry Pi speed and timekeeping, thanks!
All depends how many of whatever you're building, I suppose.
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I'm interested in learning more about your LED light alarm set up—I had a similar idea a while back but am less familiar with the world of Raspberry Pi.
Thanks for asking! I haven't documented it anywhere, and the source code isn't suitable for consumption by others. But, I can tell you about the basics. I bought a "12V" LED strip intended for automotive use, and created a simple circuit with a +12V DC supply and an NPN transistor. By hooking the NPN transistor to a PWM output on the Pi's I/O (via a resistor), I can control the LEDs from nearly full darkness to their…
Have you found waking up to light a good alternative to standard alarms?
2 Pis for dealing with ADS-B (airplane data), one for 1090Mhz, the other for 978Mhz. I could run that on the same one, but seemed easier to just split them up given some of the software is a bit picky with device IDs. The 978Mhz is much quieter than the 1090Mhz, so I also run a private SpyServer ( https://github.com/lloydpick/docker-spyserver ) for listening to radio transmissions. 1 Raspberry Pi for a running a very…
Why do you listen to all these radio transmissions?
In terms of the random radio transmissions, it was simply because I was already installing the two ADS-B antennas in my attic, and thought I might as well just put up the standard telescopic antenna that came with the USB receivers as well. I'm a newbie in terms of radio, so it's just been interesting scanning the bands to see what you can find and listen to.
A future project I have is to try and pick up the 443Mhz transmission from a really simple weather/temperature sensor I got from Walmart a while ago, since apparently that's what it uses to talk to the little base station it came with.
There's a bus station across from my studio / coworking space. I can see people waiting for the bus and doing either: 1) staring into the void 2) looking at their watches 3) desperately glancing in the direction where the bus is coming from. I figured that it'd be nice to let people know when the bus is supposed to be there. So, I installed a 28" display on a monitor stand, installed the stand on my window frame, tur…
I love and hate this question! I've always been curious what others do with them, but I just convinced myself not to buy a 4 and I'm sure this thread will give me reason to reconsider. -1x Raspberry Pi Zero W in my garage running my drip irrigation (a relay board connects it to standard 24V irrigation solenoids) -1x Raspberry Pi 3 B+ in my office running a dynamic dns script and sitting behind a forwarded port for ea…
Did you need to do anything special to control the 24v solenoids?
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I live nearby and often use this when catching the 55! Sort of surreal to start reading your post and immediately recognize it's something from just a block away!
Hey, I also take the 55 but I never saw the screen!
I love and hate this question! I've always been curious what others do with them, but I just convinced myself not to buy a 4 and I'm sure this thread will give me reason to reconsider. -1x Raspberry Pi Zero W in my garage running my drip irrigation (a relay board connects it to standard 24V irrigation solenoids) -1x Raspberry Pi 3 B+ in my office running a dynamic dns script and sitting behind a forwarded port for ea…
>-1x Raspberry Pi 3 B+ in my office running a dynamic dns script and sitting behind a forwarded port for easy sshing. could you give more info about this? i want to set up something similar at home also.
This is specifically for Route53 since that's where I handle my DNS records. I think it would probably be trivial to modify it to work with another DNS provider with an API, though.
It's quite old and probably ugly, but it's been working flawlessly for several years so I haven't really mucked with it much since I created it.