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Best Raspberry Pi Projects
- gspr 4y agoI'll hijack this thread to ask: What are some good Pi alternatives that don't need blobs to boot and run, and that use mainline (or more-or-less mainline) kernels? I don't need any video output, and I'm happy to pay double. What are my options?
- auxym 4y agoPine64 maybe? https://wiki.gentoo.org/wiki/PINE64_ROCKPro64 https://wiki.gentoo.org/wiki/PINE64_ROCKPro64
- gspr 4y agoThanks! That's exactly the kind of advice I was looking for!
- thecolorblue 4y agoCan you explain a little more? I don't know what you mean by 'blobs to boot and run'. As far as I know, the latest Linux kernel supports the raspberry pi.
- flyinghamster 4y agoThe Pi actually boots from the GPU, which runs a closed-source binary blob. The GPU then starts up the ARM cores, and that's where Linux boots.
- ohbeishah9Ienus 4y agohttp://www.orangepi.org/ http://www.orangepi.org/ ? https://ameridroid.com/collections/single-board-computer https://ameridroid.com/collections/single-board-computer ?
- gspr 4y agoThose look like good sources for a variety of SBCs. Thanks! But how do I narrow the selection down to my criteria?
- fsagx 4y agoIf you just need a tiny, fanless board that runs linux, like-new Wyse3040 can be had in any quantity you like for ~$30 - $40 (ethernet only, though). Wyse5010 is a bit bigger and more capable (and has built-in wifi) around the same price.
- jpetrucc 4y agoWhere are you seeing these for those prices? ebay? It'd be interesting to see what could be done with boards like this
- fsagx 4y agoyes. I've picked up a few on ebay: https://www.ebay.com/sch/i.html?_nkw=wyse+3040 https://www.ebay.com/sch/i.html?_nkw=wyse+3040 Many listings will not include the power supply, but if you have a drawer full of wall warts, you can probably find something that works.
- hoppyhoppy2 4y agoThe FSF has a page on single-board computers that might be helpful, at least to narrow down your options by discarding the worse options. https://www.fsf.org/resources/hw/single-board-computers https://www.fsf.org/resources/hw/single-board-computers >Some have workarounds, but some are fatally flawed and none are fully free.
- sparker72678 4y agoMany cool ones in this list! Other great ones: - https://birdnetpi.com — Bird call logging - https://flightaware.com/adsb/piaware/ — ADS-B Tracking - https://pi-hole.net — Network wide ad blocking - https://homebridge.io — HomeKit bridge for many devices/services
- reaperducer 4y agohttps://birdnetpi.com https://birdnetpi.com — Bird call logging I love this idea. I've just started getting into birds, and I wish I had steady enough hands to build a solar+battery version of this I could stash in the woods for a week.
- jmherbst 4y agoI've set this up recently with a cheap(~$20) USB microphone and just have it running on the back porch and it's been such a delight. Loving it!
- greenburger 4y agoYou might be interested in picking up an AudioMoth [0]. A bit more work as you’d have to manually push through BirdNET, but easier to deploy. https://www.openacousticdevices.info/audiomoth https://www.openacousticdevices.info/audiomoth
- geoffeg 4y agoAlong the lines of piaware, also checkout https://liveatc.net https://liveatc.net. If you live near an airport that's not currently served by the site you can set one up moderately easy.
- tlavoie 4y agoIs there anything like birdnetpi, but with an ultrasound transducer for bats? I know I have them zooming around, but rarely see them, and would love to know more what their activity is like here. Oh, checking out the AudioMoth linked elsewhere, looks like that works for recording birds and bats. Down the rabbit hole I go.
- arch_rust 4y agoAnd an in-car ADS-B system: https://rsadsb.github.io/rasp-pi-display.html https://rsadsb.github.io/rasp-pi-display.html
- phkahler 4y agoWhere can I get a Pi these days. I have a work project (low volume need about 5 Pi) where I replaced a Matrix Orbital LED display and custom membrane keypad with a Pi and touchscreen. I used my own personal Pi model B but I need a few for the company and they are out of stock everywhere. (displays are not a problem, just the Pi itself)
- ajsnigrutin 4y agoI need a couple for a project, and yeah... good luck. RPI400 is available pretty much everywhere, but rpi3, 4 or zeroW like they never existed.
- kjs3 4y agoFor anyone thinking "I'll just get a 400 and open it up and pull the Pi", the 400 motherboard isn't remotely the same form factor as the usual RPi's.
- dividuum 4y agoIt's difficult. You can try your luck with https://rpilocator.com/ https://rpilocator.com/
- misnome 4y agoFWIW I found better luck looking for "Starter kits" that are the board + power supply + case etc. There were a couple of sites that rpilocator checked that didn't have stock listed, but did have 8gb 4bs as part of a "Starter kit" for ~£15 more. I assume it's some agreement not to list all the variants to try to allow hobbyists to still get some.
- antongribok 4y agoI actually bought an PRi 4 8GB 2 weeks ago at my local MicroCenter, so they're definitely making (and selling) them. I decided to check on my phone on a whim. They showed 8 in stock. By the time I got there, 30 minutes later, they had 3 left. That PiLocator site does show the last time they've been in stock, and from my non-scientific assessment, it looks like availability is slightly getting better.
- baby-yoda 4y agowith the explosion in popularity of the pi in both home and commercial use I wonder if it makes sense for the pi foundation to shift more towards the compute module style and let the market handle the io/specialization aspect? id assume the CM4 would be less constrained by shortages since theres a simpler BOM?
- philjohn 4y agoSee also RaspAP - turns your raspberry pi into a wireless access point. I have one setup in a Raspberry Pi 400 for when I travel - it's configured as a wireguard peer back to inside my home network so any devices I connect to it are being routed securely to there before out to the internet (and I can also access my network from the road, including backups and media).
- iso1631 4y agoI stayed in a hotel over easter, the wifi in the hotel did not allow outgoing ICMP, tcp/22 or udp on any port. The only traffic I could find allowed outbound was on tcp/80 and tcp/443 udptunnel did the job, although I had to tether off my phone to get the server up and running.
- flyinghamster 4y agoIf you want to monitor things around you, and you have an SDR dongle set up, rtl_433 is handy. I have a Pi 3 running it to graph temperature and humidity readings from a couple of remote-reading sensors, plus barometric pressure from a Sense Hat and voltage, load, and battery readings from my UPS. It will display selected readings on the LED display, but I mostly just let mrtg/rrdtool do its thing. https://github.com/merbanan/rtl_433 https://github.com/merbanan/rtl_433
- hdjjhhvvhga 4y agoMy first thought was, "Why would I need SDR to read temperature/humidity from sensors", then I realized these are more like wireless weather stations. Out of curiosity: why did you decide to purchase ready solutions instead of rolling your own using ESP32 for a fraction of the price?
- margalabargala 4y agoNot the person you replied to, but someone who did the same thing: Most of the things inside my house are ESP32 or zigbee things I put together myself. Things that go outdoors, though, I'm much more likely to purchase an off-the-shelf solution for longevity's sake. Especially if the whole point of the item is to be rained/snowed on, be left in direct sunlight, and so forth.
- sgt 4y agoYou can always build a tiny little house for your outside ESP and leave it outside.
- tlavoie 4y agoYeah, mine's under a deck, in a travel soap dish with holes drilled in it. Works great! Power for that one is one of those little solar panels with a micro-USB port on it, used for battery-powered security cameras.
- varispeed 4y agoI wish I could find a project that would recognise a cat by its appearance and open / close a cat flap based on that. It could also make a noise or other distraction at cats that are recognised to deter them from tampering with the cat flap. The cat flaps available on the market use a chip to identify a cat, but this is a terrible method - it doesn't work more often than it does. Many times my cat was attacked by other cats because it couldn't get in and now it is scared of cat flaps.
- Auracle 4y agoMaybe things have changed, but when I was looking for doggy doors I was dismayed nobody made one that would automatically open in case of a fire.
- brimble 4y agoI'm no expert, but I can imagine that automatically opening an air vent to the outdoors, when a fire is detected, isn't a great idea.
- Auracle 4y agoWhat we bought has several flaps (to help with insulation) and a plastic cover we can put over it at night. The flaps would still be there; I just wanted a "cover" that would come off in an emergency.
- tlavoie 4y agoOn that note, one that could open in one direction only would let the pet out, but not open inwards. To the extent that this helps though, I'd wonder more about other things that are risky, like flammable furniture foam/curtains. A room and contents fire gets out of hand faster now than they used to, because the old wood furniture and natural materials are much less immediately flammable. Either way, once the heat breaks a window, that room at least will suddenly have lots of air. I did subscribe to a monitored alarm service specifically for the smoke detectors, on the theory that while I have little need for a burglar alarm here, I would really want the fire department sent if something started while I was out. I'm on my local department, and usually home, but the neighbours wouldn't know quickly if something happened while we're away.
- loginatnine 4y agoNo blog post or pictures but I have taped an ADXL345(accelerometer) on the back of my washing + dryer and I'm using a pi to notify me when a load is done. Didn't have the time to put a fancy algorithm to detect movement so it's rough, but it has been working perfectly for the past 4 years with no false positive/negative. https://github.com/jebeaudet/time-to-fold-alerter https://github.com/jebeaudet/time-to-fold-alerter
- alar44 4y agoWhy not detect current in the power cable? Or tap into an indicator light or relay? Way easier.
- loginatnine 4y agoAbsolutely, however I already had the accelerometer in hand for another project.
- croutonwagon 4y agoOne of the recent ones I did was a Pi-KVM. https://imgur.com/a/AVxuR0d https://imgur.com/a/AVxuR0d Im honestly considering deploying these at work to replace some aging (and expensive) dell, java based ipkvms. I like it enough i made a second one to attach to a small headless desktop. Mainly just as a cheap quasi-OOB management. Mine use h.264/webrtc or html5/mjpeg and on one i even hooked it up to a smaller kvm to give me a 4 port switcher via the webUI. Pretty slick and all told was under $400 for a 4-port model. A single pikvm, including the case and everything was about 100 bucks. With some systems (ie: supermicro) and a ribbon cable, you could rig up ATX controls as well.
- marcosdumay 4y agoOn the subject of IP-KVMs, I miss¹ something that I can plug on the USB of several computers, and access them by the bare serial interface, without messing with video capture and peripheral emulation. It would be something much simpler than the things available today, even requiring less wires. The main issue I see with it is that it would need to connect to multiple host USBs and only one client. 1 - I actually don't miss it anymore because I'm not in a situation to use it, but I used to miss it.
- croutonwagon 4y agoNot sure i follow. In this case. Its basically a single USB cable and a HDMI/Video cable. All the Mouse/Keyboard etc is emulated through USB. Which is pretty nice. That was the best part for me. And with modern standards the lag was noticeable, but minimal. That said, in my cases, im just using SSH or something anyway. This was more for outage situations, or in a situation where i need to make a BIOS change remotely etc.
- marcosdumay 4y agoOh, you have 1 of those for each server, like a normal IP-KVM. So there's a network, a video and a USB cable for each server, plus the server cables. It should be able to build a device where you use an extra USB for each server plus one network cable for each 4, 8, whatever (if you push it, your entire hack). To use it, you would SSH into the pi, and use a command to get a server. The serial interface is quite old, everything tends to be accessible there. But now that you mentioned, I'm not sure you can update the BIOS with it.
- rane 4y agoWhat would make the best platform for building some kind of personal dashboard/radiator on an e-ink screen? I guess ideally I'd spend as little time as possible on tinkering with low-level rendering code.
- andruby 4y agoI bought an inky 7 colour e-ink screen for rpi [0]. Pimoroni offers a python library that can write any image (jpg, png) to the screen. Any rpi just fits with the gpio pins like a typically HAT. I'm using an rpi zero 2 w. Setup was less than 5 minutes. I'm now hooking up a system that will take screenshots from a home assistant dashboard and push that to the display every 5 minutes. [0] https://shop.pimoroni.com/products/inky-impression-5-7?variant=32298701324371 https://shop.pimoroni.com/products/inky-impression-5-7?varia...
- gh02t 4y agoInkplate, with Esphome. Expensive, but a lot of the other large-ish epaper all in one boards are not the best quality or have bad library support. LilyGo makes some nice boards too but I (and others) have had variable quality for the display itself and software support is kinda eh, though there is an Esphome component in the works that is basically complete but not yet merged. Shopping for epaper boards is a pain because there are a lot of different driver ICs with varying degrees of support/open source code; even the same model of board might use the different and incompatible drivers. Inkplate basically just works and have good QC because the displays are harvested from recycled Kindles. https://e-radionica.com/en/catalogsearch/result/?q=inkplate https://e-radionica.com/en/catalogsearch/result/?q=inkplate https://esphome.io/components/display/inkplate6.html https://esphome.io/components/display/inkplate6.html
- deleted 4y ago[deleted]
- devwastaken 4y agoRaspis are universally unavailable and scalped for 4-6x original cost. The projects are cool but for current seekers it's essentially vaporware.
- schmorptron 4y agoDoes anyone know of groovebox / OP-1 or MPC-like projects you can do with a raspi? That seems like a very fun application.