731–740 of 1001 posts
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 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…
College student here with a part-time data entry job. I have automated nearly all of it using Python, Selenium, and a few nasty bash scripts called by periodic cronjobs. Recently purchased a 3b+ for the task so that I can travel without worrying about AirBnB wifi speeds. If I need anything I can just SSH or VNC into it from a coffee shop. It just sits next to my router and blinks all day doing my job for me! Best $35…
That's great! The business world is chock full of these situations where non-technical people create a process that could be automated but isn't, eventually leading to an entry level person (or several) who's entire job is to do things like copy-paste, clicky-click or OCR. I think the key step to automating these tasks is to have the ability to both recognize the opportunity for automation and code a solution. There…
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…
Could something like this be used for synchronization in such a scenario? https://ncase.me/fireflies/
Unfortunately, I also have literally no idea what you're proposing. I would like to, though.
I 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…
> I VPN in to my home network, ssh into the pi using Terminus on my iphone, and 'aplay' the wav file Once, when I was working away from home, someone unplugged the phone at home so I couldn't phone in. After becoming very frustrated, I SSH'd into my home server, and from there into the Mac Mini we used as a media station. Then: - checked they were watching something using `ps`. - killed that process so I had their at…
[0] Also interesting is the time I discovered that sending a special escape code to the printer caused the cash drawer to open, but that's a tale for another thread.
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…
could you give more info about this? i want to set up something similar at home also.
* Vision - A custom CNN using YOLO [3], where we are able to process a 256x256 (input is scaled) at 10fps to detect bounding boxes for balls and goal posts
* Localization - Kalman filter (mainly currently used for tracking rotation)
* Networking - Game controller (referee) [4], team communication [5] and a debug interface [6]
* Behaviour - A hybrid state machine
* Walking - Inverse kinematic walk with a balance system [7]
Feel free to ask questions. We plan to open source everything (everything) in a month to two months.
[3] https://pjreddie.com/darknet/yolo/
[4] https://github.com/RoboCup-Humanoid-TC/GameController
[5] https://github.com/RoboCup-Humanoid-TC/mitecom
[6] https://github.com/hellerf/EmbeddableWebServer
[7] https://github.com/Rhoban/IKWalk
EDIT: Bullet points on different lines
Audio: I'm also using one RPi2 with an attached hard disk as a music player for pen&paper roleplaying sessions, and I have 3 Pis distributed around the house acting as Wifi-enabled Airplay receivers attached to off-the-shelf powered speakers.
Retro gaming: I built one RPi2 into an empty Amiga 500 case, it runs an Amiga emulator with many emulated game floppy disks onboard. Fun fact, the Amiga 500 keyboard sends its key strokes over a serial interface, so it's relatively easy to attach it to modern devices.
3D printing / IP cameras: I have drifted towards the Orange Pi hardware recently, mainly because they have a dirt-cheap headless module that costs about 10€. These are extremely useful for all kinds of automation tasks. For example, I'm using them with the Octoprint open source project to control 3D printers. Those headless Orange Pi Zeros are also fantastic as IP cameras, which has become necessary recently because consumer IP cameras that do not send all your data to China have become rare and expensive.
Attendance and access control: I'm currently considering throwing out our shitty proprietary attendance and access management system at work, in favor of some simple custom-built Raspberry Pi or Orange Pi-powered panels. I have a prototype ready but haven't had time yet to make more.
Lab control: I have an RPi3 attached via serial interface to a chemical analytics device at work, which required reverse engineering the proprietary protocol between the device and its shitty Win32 software. This allowed us to throw out a legacy Windows PC that needed to phone home all the time.