What did you build today (Pictures) ?

[rozpruwacz]

@scalpel yeah, I did this kind of project also and I wonder if there is a software for that :) It would be fun to be able to set the wakeup ir code from the linux os, with for example i2c or 1-wire interface.

[gohan]

@rozpruwacz how often would you need to change the IR code for that?

[rozpruwacz]

rarely, but still it would be fun to make such thing :)

[dakipro]

@sincze said in What did you build today (Pictures) ?:

her favourite radio channel at her prefer

@sincze hi, could you elaborate a bit more the TV messages, do you have any link with more info? Was that the LG tv with Mqtt that was mentioned on the forum?(or I mixed forums)

[sincze]

@dakipro we use kodi on al lgl tvs. The libreelec TV box has cec and can turn on the TV via hdmi. If TV is on I am able to control the volume via the LG webserver. Kodi (api) can display the notifications for Me :). Not that fancy but it works like a charm.

[wallyllama]

Side note. I did a quick search, there is a cec library for arduino!
https://github.com/stefslon/cec-arduino

[bjacobse]

@sincze
If it works like a charm - it's fancy ;-)

[sundberg84]

Back to topic! Last night I made some changes to my ATX Power supply because the variable settings was to sensitive:

[zboblamont]

@sundberg84 Did you find that taking the cover off improved the accuracy at all ?
:laughing:

[maghac]

I built a lithophane lamp for my grandson. The electronics is basically only a pro mini and 36 neopixels. Sadly this version is not mysensorized but maybe I'll do that in version 2 :)

[NeverDie]

@maghac Cool. How were you able to convert the photos into that embossed material (or whatever it is)? Is that a CNC process, or something else? It seems to have very good resolution.

[gohan]

I have seen a video where you can convert your pictures and print them using a 3D printer

[maghac]

@gohan said in What did you build today (Pictures) ?:

I have seen a video where you can convert your pictures and print them using a 3D printer

Correct, these are 3D printed lithophanes (https://en.wikipedia.org/wiki/Lithophane). I used http://3dp.rocks/lithophane/ to convert jpg files to STL files for printing.

[Nca78]

After failing to assemble a completely functional version of my new livolo switch board, I assembled a first prototype of my new "22" sensor board. Unfortunately I didn't receive the sensors yet so it only has a switch, a hall sensor for door and a led, but that's enough for the first testing.
Board is made to cut headers when it will be finished, but meanwhile I can use the headers to make it a breakout board for the nrf51 module or for each of the sensors.

[scalz]

@Nca78 nice :+1: it looks like familiar to me, i don't know why ;) I agree with you, I prefer rounded square shape as it fits more easily everywhere than circles

[NeverDie]

:+1: Have you settled yet on what kind of connector you're going to use on future boards?

[Nca78]

@scalz said in What did you build today (Pictures) ?:

@Nca78 nice :+1: it looks like familiar to me, i don't know why ;)

Not sure which one you're talking about, as it's some kind of child between @NeverDie 's board (same nrf51 module and small size) and your aeos (shape, on board sensors). But it's more like a challenge to me, make the smallest board possible (22*22mm) with as many sensors as possible (at the moment, door, TH, light, accelerometer) and I have a bit of margin to add more like the leak detection from @NeverDie it's really nice to be able to do it with such a tiny sensor.
I'll do a more complete and flexible 33 board later, I will try to make it some kind of a hand-solderable version of aeos ;)

[NeverDie]

As far as minimizing size goes, I think you're right: square (or some kind of rectangle) is going to be better. I end up throwing away a lot of useable space going from square to circle, which, unfortunately, forced me into increasing the diameter (i.e. the size). So, in the end, square/rectangular is probably better. :) I think the allure of the circle is to try to fit the whole thing perfectly onto a coincell (which acts as a kind of limit on how small you can ultimately go), but unfortunately that can't happen with any of the coincell holders I've seen so far....

[scalz]

@Nca78
It was just a private joke :) If I inspire some people, then I'm glad! Because like you said, aeos is different (better mcu, more ios&sensors, and latest unpublished revision is..more generous).

But, if you're trying to make a "aeos" (same sensors for instance) in future, then i don't get the point..why reinventing the wheel? Your board has qfn/dfn footprints too, so I don't see how it's easier to handsolder.
If this is related to Ic's price, there are lot of different ways to get them cheaper.

You should maybe use stencils (maybe you already do it) that will save your day ;)

Keep the good work

@NeverDie yep, agree with you

[NeverDie]

@scalz We're not going to get much software being written (such as, for instance, an OTA booloader that we can all use or cool self-destructing crypto wizardy) until there's worthwhile nRF5 hardware available, so anything you can do to speed up the release of your designs would really help. I've been trying to Johnny Appleseed this, without getting much apparent traction on people adopting it. People seem to like your stuff, which looks very professional. If you can, try to make it available so people can start writing software, integrating it, etc. As the saying goes, a rising tide lifts all boats. :)