What did you build today (Pictures) ?

[nagelc]

@NeverDie , @zboblamont Best laugh I have ever had at a MySensors post : )

[mfalkvidd]

Today I'm trying out Thingsboard, which sort of is a controller, but on steroids.

So far, it seems quite capable, but I have a lot of learning to do. My first step was to integrate it with Sigfox, which seems to work.

[gohan]

@mfalkvidd that looks like more an IoT device management, doesn't it?

[mfalkvidd]

@gohan could be. What's the difference?

When I think of it, I guess a controller has little need for multi-tenancy.

Btw, some pretty cool dashboard examples can be viewed at https://github.com/thingsboard/thingsboard/blob/master/README.md

[gohan]

@mfalkvidd the difference is that the controller is for your home, the IoT device managment is like for a service provider (look at cayenne mydevices for example) that has different customers and resellers, so it needs to be multi tenant and some other features not needed for home use

[mfalkvidd]

@gohan that sounds reasonable. I actually found Thingsboard after spending 4-5 whole evenings fighting with Cayenne's stupid and badly documented REST API.

[Nca78]

Today I soldered a tiny MYSX board to recycle my EasyPCBs in door sensors as compact as possible. I can also use the "vertical" CR2032 holders I had no use for and make some space in my drawers.
It can use a normal or a NO/NC reed switch (for SMD allergies :D ) or a SMD ultra low power hall sensor and it has a footprint for a reserve capacitor to support the CR2032.
I guess this board will be of interest for @sundberg84 ;)

PS: sorry for the ugly soldering, my old 936 clone soldering station is in "zombie" mode and it's all I have until the new soldering iron arrives.

[Nca78]

Not related to MySensors but I also assembled a first version of a battery powered led light, it's small and cheap and I will assemble a bunch to put around my home when there are some power cuts in evening/night. I'm using 3020 leds and they emit a lot of light for their small size, even with low current so I expect to get around 2 hours of battery life with the cheap aliexpress 16340 batteries, and way more than needed with the 18650 cells salvaged from my old laptop battery.
My first board with a li-ion charger and it is working well, now I'm waiting for the battery protection ics (cheap DW01 from AliExpress) to arrive as my batteries are not protected.

[NeverDie]

@nca78 Which 3020's did you get?

[Nca78]

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

@nca78 Which 3020's did you get?

Cheap ones from AliExpress, not disappointed especially for the low price. I'll see in the long run how they behave.
https://www.aliexpress.com/item/100pcs-Light-LED-3020-Warm-White-SMD-Diode/32325994533.html

[dbemowsk]

@nca78 I have some similar looking panels that I had salvaged from some old document cameras. I was planning on building some MySensorized walkway lights in my hall Might be something good to make in the event of a power outage.

[dbemowsk]

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[dbemowsk]

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[sundberg84]

Some more testings on my Logger... I want it to work great before moving on so alot of testing is needed. Why not do it on node #1 (note the old rev om EasyPCB).

[sundberg84]

Completely unrelated but a impossible project for me it seems...

Im building a wifi "babywatch" in a USB stick.
It sends sounds to a app/software which is build to run in the background. This to be able to game or watch video with headphones and still know if you have a angry child.

So pretty much Mic -> Amp -> ADC -> Esp8266 -> Wifi -> Software/App.

This seems impossible to do with all the interference. Everything works now (Rev1) but im now on Rev 6+ or something and I cant get rid of the noice in the Audio.

Seperate power supply + ground for analog and digital side but It seems like the Esp8266 inserts to much noice.

Well, it was a great idea but hard to accomplish.

[nagelc]

@sundberg84
I really like that case. Do you have a link where you purchased it?

[Yveaux]

@sundberg84 analog and esp8266 also beat me. Tried to play some music from an ESP8266 but result was barely usable. I switched to dac+amp connected via i2s which works fine.
Maybe you could try with a digital i2s microphone...

[sundberg84]

@yveaux - thanks!!! A new hope ;) I will.
@nagelc - I use this: https://www.mouser.se/productdetail/789-p3a-220805s but note, there are 4 different variants. WIth and without opening for USB connector and other stuff. I can send you the footprint for the PCB if you wants.

[nagelc]

@sundberg84 Thanks. Looks like that company has several interesting enclosure shapes. Someday I might get a project complete enough that I will want to put it in an enclosure : )

[dbemowsk]

The nice thing about owning a 3D printer is that I don't have to buy enclosures any more. I just have to buy rolls of plastic. The sky is the limit when you have a 3D printer. I do like that enclosure though.