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Hello everyone, it's a lot of time I don't write in public on the internet. When something difficult/weird comes to my mind, it happens that I go to :)

Here's my difficulty: I'd like to have a device, for personal use at my home, but it doesn't exist - so I can't just purchase it.

It's something that probably technically can be done these days, and I have an overall idea of how to, but can't go from start to finish myself without spending an inappropriate amount of time.

So I thought: it's 2019, the Internet and everything, of course there are communities who "design and build together" things, like software, hardware, etc.
But I'm not sure which could be, for hardware+software devices for personal use.

Thus my question: do you have recommendations? I'd basically would like to post the necessity, and try to contribute as anyone else over time, but hoping that someone smarter than me, together with someone else smarter than him/her, etc. could help with significant progress so to not wait for a lifetime for having it operative on my home's balconies.

The device that I would like to build is something that detects pigeons on balcony with artificial vision and ML, using several cameras and raspberry pi's or whatever, and moves one or more flashlights to point towards the pigeons and try to persuade them to go away. And/Or, moves a robot owl or a robot falcon, that goes towards them, scares them until they go away, and then goes back to the charging station.


Living Room / Re: Your favorite cartoons of yesterday and today?
« on: October 28, 2014, 07:30 AM »
Though I used to love watching cartoons, (and have probably forgotten most of them), Futurama would have to be about the only one I'd go out of my way to watch these days.

Oh sure, Futurama! The Sting, one of many great episodes popping up in my memory.

Living Room / Re: Your favorite cartoons of yesterday and today?
« on: October 28, 2014, 06:35 AM »
Some of yesterday:
- Dr. Slump
- Dragonball, Dragonball Z (excluding the "fill episodes")
- Batman: The Animated Series

One of today:
- Adventure Time

Developer's Corner / Re: Any DC members thinking of trying Kickstarter?
« on: September 04, 2012, 10:25 AM »

[...] However, bank account and Amazon Payments account balance transfers are enabled only for US based customers. [...]


Developer's Corner / Re: Don’t Understimate Language Issues
« on: July 16, 2012, 03:44 AM »

I don't know who's the original author of this great piece of humor, but I very well know it and makes me laugh all the time :) The video version allows a better understanding:

The Italian Man Who Went To Malta


PS: The speaker in the video sure is not Italian, I can hear it from the final "arrivederci" ;)

Developer's Corner / Don’t Understimate Language Issues
« on: July 15, 2012, 11:51 AM »
"Don’t Understimate Language Issues": that's the title of a blog post by an Italian entrepreneur (and great coder) living in USA.
I'm sharing the link here (hoping it's not too much OT), because I think his candid writing can bring some awareness of this kind of problems, just in case someone is actually underestimating them.

Good brainwaves, 4wd, that can all be explored.

Anyway, Image Mirror' author, in the very same day I contacted him, implemented my suggestion: I tested it and replied (it was ok), and in the morning I had a mail announcing that on the website a new fresh release of the software was available. Fantastic.

From my tests, it seems to work very well (I still need to investigate on some problems, but I don't know if they're related to Image Mirror).

Unfortunately, there's no way to avoid the need of two screens, because Image Mirror can only flip a rectangular area that is actually shown somewhere in the desktop.

Making a software capable of just flipping the screen, in Windows, seems to be a very challenging task, if possible.

At the moment, I think Image Mirror is the best solution - of course let me know here if some better solution is found.

Contacted the author of Image Mirror:
Hi, I've tried Image Mirror in search of something that could help for a different usage. It's close to what I need, but still not there.

But, trying Image Mirror, I see you could very well be able to make what I'm searching for: could you consider writing such a software (starting from Image Mirror's code), or adding features to Image Mirror?

I would like to paint in whatever software (in Windows), but the screen should be flipped horizontally. It should be tailored to painting, i.e. for responsiveness maybe it could update fast only a small area (around where the pointer is), while the rest of the flipped region could be updated slower.

Also specified a link to this thread.

Ok, tests done (Windows XP) - here's the report.
Thank you very much, 4wd: you're an amazing software discoverer!

Mirrorimage seems slow, or anyway not fast enough on my PC for painting usage.

Image Mirror is great for this usage, in extended desktop setup with two monitors: I put the Image Mirror in the second monitor, and the painting app in the first one, choose the right refresh rate, and I get a fast enough mirrored view of what I'm painting.

Still, I'm interested in other findings, both for avoiding the necessity of a second monitor, and to obtain faster responsiveness, i.e. maybe something tailored to painting usage could monitor and update *fast* only a small area (around where the pointer is detected), and slow the rest of the flipped region. In fact, for 90% of the time, painting is about moving the pointer and leaving a trail near there ;)

Here's something to try: Image Mirror

Uhm, not exactly what I need, but maybe I could try it with a two monitors extended desktop setup...

No, that wouldn't work.
It's for painting with my graphic tablet under a glass-like surface positioned with a 45 degrees inclination next to a 90 degrees rotated monitor.
The virtual image of the lcd screen lays on the graphic tablet, but the real display should be flipped horizontally in order to see it correctly in the virtual image, and to match the movements of the pen on the tablet.

EDIT: there was no link to Image Mirror while I was writing. I'll look at it.

EDIT: Although, after having tried it, (and the attendant reversed mousing), it's actually 180deg rotation not flipping.

Yes, rotation is quite usual. Flipping (for use with mirror) is not.

[...] (per connected monitor) [...]

Do you mean, it needs a second monitor for the feature to work?

No nVidia here, sorry.

Sorry for reopening this old topic, but, well - it's 2012 now: is there any software to horizontally flip display in real time, on Windows?

As a happy KeyNote NF user, I know how valuable is your software, and it seems very well done. TreeProjects should be able to quickly and easily transform KeyNote NF stuff into a TreeProjects database, otherwise considering a software change will be hard for anyone with a lot of notes.

Post New Requests Here / Re: Idea - Whats in my fridge?
« on: November 06, 2011, 11:06 AM »
In Help -> About -> Credits you read:
Special thanks to "Absent Professor" on the DonationCoder forums for the original idea.
...but that should be "Abent Professor" :)

Nope.  See earlier note about messing up his name in the registration.

Hehe, so "Absent Professor" aka "Abent Professor" :)

Post New Requests Here / Re: Idea - Whats in my fridge?
« on: November 06, 2011, 08:09 AM »
In Help -> About -> Credits you read:
Special thanks to "Absent Professor" on the DonationCoder forums for the original idea.
...but that should be "Abent Professor" :)

Living Room / Re: Wiki software with authentication
« on: June 13, 2011, 05:10 AM »
Never underestimate the power of Mediawiki, and its huge ecosystem of extensions: when you're searching for something wiki-related, my suggestion is to first have a deep look into it. Example:


And if you can't find an extension, you can always try to code it yourself ;)

Woah, good! Spicey contest proposal - The Blind Thermometer: stop letting the thermometer show the level reached, and the first donator that reaches exactly, or goes beyond the $6000 level, wins something :)

Worth noting that the only big problem for the Zero Install project is the low number of apps available as feeds - and that's where DonationCoder could help ;)

I would like to make a proposal here.

I do follow since several years both the DonationCoder environment and the Zero Install project. Call me a shameless connector or whatever bad word you can think of, I don't mind, but I want to say I'm confident that some kind of partnership, in a direction or the other, would really benefit both. Zero Install works on Linux, Windows, Mac OS X, UNIX. Awesome would be if every piece of software, coming from DC developers, even the most little one, could be packaged providing a "Zero Install feed"; dreaming a bit, but not that much, that would also make flowless and easier to accomplish an interoperability between various DC apps (see how ZI manages dependencies), and the software index would include all the DonationCoder apps, so they would be easier to find and explore (and immediately run! :) Thinking forward, a donation system in DC style could eventually be integrated in the service and/or the project itself. With Zero Install would be very easy for users e.g. to try DC apps (easy as clicking a "Launch!" button), eventually fall in love with them, and donate for a lifetime unlock.

Really, I see a lot of potential here for both the ecosystems, and I could write a lot about that - but I'll let you use your own imagination while here and now I'll just prefer begging to stop for a moment, and take a serious look to the Zero Install project for the possibilities that your contributions would bring; what I'm asking here is to make your tiny/little/big/huge/whatever apps available as Zero Install feeds (if they work on the supported platforms); of course you can continue using your usual way of packaging and distributing stuff, but I'm asking to make a Zero Install version *too* - it's easy and well explained:

If you want to explore the possibility, please join the mailing list that is the main place for discussions; also for any trouble in making the feeds, there will be always someone capable and willing to help there:

Zero Install for Linux:

Zero Install for Windows:

Zero Install for MAC OS X:

Zero Install for UNIX:

Let me know what you think!

Cheers! And what a *awesome* prize is the "10-25 hours Custom Coding Time" on anything we design!

...uh, it has to be legal, now that I read better... D'oh!

Webcam Video Diary / Re: Feature request: in-video notes
« on: January 03, 2011, 07:01 PM »
Sure. In Tab "Project Options" you let the user define a current "Identifier" label, imagine it is "my-dreams", because the user wants to start a video-log of her dreams.
She wakes up, and starts the app, with "my-dreams" as current identifier. In the "Live Camera Video" she eventually writes something into the "Optional Recording Label" field, that is a title for the dream she's going to record - but this has not to be considered as part of the "identifier", i.e. the identifier is still "my-dreams".
While recording, she can pause and insert tags, then resume. Also, she'll be able to add tags when the recording will end. And also, when she'll have a video selected into the "Media File Viewer" Tab.
The process of tags insertion is done by viewing a list of all the tags defined for videos with the same identifier (in this example, "my-dreams"), sorted by descending number of total occurrencies, and writing something into an input field; while writing, the list dynamically changes on every keypress, filtering out tags that don't contain the written string. On the right of the input field there is a [ADD] button, that when pressed clears the field and puts that string into the bucket of tags for the current video. Also, hovering on the tags in the dynamic list retrieved from the videos with same identifier, a [ADD] button appears, that when pressed puts that tag into the bucket of tags for the current video. Hovering on the tags in the bucket of tags defined for the current video, a [DEL] button appears, that when pressed deletes that tag for the current video.

Note that if the user defines also e.g. a "startup-ideas" identifier, and records videos with it, the list of tags for that identifier of course won't include those added to videos of "my-dreams" identifier, but only those added to videos of "startup-ideas" identifier.

If it's not clear, or if you want/can do it in some other way, let me know.

EDIT: errata corrige: "dreams" -> "my-dreams"
EDIT: [TAG] button -> [ADD] button

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