What did you build today (Pictures) ?

[NeverDie]

Back to the OP topic, I made a micro-usb OTG cable (bottom cable below) that passes through all 5 pins:

This will replace the more fragile cable above it in the next generation of my nRF5 micro-usb programming/debug adapter.

It turns out you can't buy this cable. At least, I couldn't find any for sale. Instead, I had to make it myself. Fortunately, Adafruit sells a little DIY kit that helped tremendously:
https://www.adafruit.com/product/1826

:)

[Yveaux]

@NeverDie So much heat shrink tubing -- makes my eyes hurt :sob:

[zboblamont]

@NeverDie So many colours of nations offended... Have you thought of going for President ?

[NeverDie]

Actually, this was the very first time I've used shrink tubing. How could I do it better?

Mostly I didn't want there to be much bending, which might lead to tearing loose the solder connections. I wanted the finished cable to be a "once and done." Now that it's done, the connections should go very easy.

[scalpel]

I use raspberry for watching television, movies etc. Today I build raspberry hat to turn on from remote control. Attiny85 recognizes programmed remote code and by optocoupler short circuit on pins.

[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.