What did you build today (Pictures) ?

[rozpruwacz]

@scalpel how do You program the ir code for the power button ? can it be programed from the linux running in the rpi ? or it is just hardcoded into atiny code ?

[scalpel]

Hardcoded In attiny. Learn arduino irremote library.

Pozdrawiam / regards

[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....