What did you build today (Pictures) ?

[pihome]

working on GPIO MySensors Gateway

[berkseo]

An updated version of my temperature and humidity sensor with e-ink. Now on nRF52840. Now it is not a module but a device in the case.

Replaced temperature sensor sht20 -- > > si7020
Added accelerometer.

In the near future the project will be posted updated on the website openhardware.io

Video: https://youtu.be/T66y83lF-xg

[franz-unix]

Amazing! 😃

The case is 3d printable?

[berkseo]

@franz-unix
This is made on SLA printer, but should normally print on FDM

[pihome]

@pihome just realized one big blunder, The NSS, MOSI and SCK are not 5V tolerant on RFM69. hence need level converter :(
i was wondering is there any one ic can can do instead i have to used BSS138 per pin.

[NeverDie]

@berkseo I'm quite interested in a schematic view showing how the epaper gets wired up, because priced just by itself epaper seems like an affordable solution.

aliexpress.com/item/32962453684.html?spm=a2g0o.productlist.0.0.3e97287fLkUbFb&algo_pvid=9af4e6cf-0e45-470a-925d-b0b1d62212d5&algo_expid=9af4e6cf-0e45-470a-925d-b0b1d62212d5-0&btsid=e444f3d1-9949-4c49-ada6-376ecc83a846&ws_ab_test=searchweb0_0,searchweb201602_8,searchweb201603_55

or

https://www.aliexpress.com/item/32810660608.html?spm=a2g0o.detail.1000013.1.10ee3442rep8pS&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.146401.0&scm_id=1007.13339.146401.0&scm-url=1007.13339.146401.0&pvid=8e948464-a786-4cf4-96ff-86c51f67bf4c

On the other hand, if one has to rely on adafruit or similar for an epaper breakout board to make use of it, the effective price jumps by around 5-6x or so.

[monte]

@neverdie you can use this and this as a reference. No need to buy ready breakout board, if you know how to trace your own.

[bjacobse]

https://github.com/dkjonas/Wavin-AHC-9000-mqtt
iron and toner transfer, then etched and soldered and finally acrylic spray on cobber so it won't corrode

[Nca78]

Hello, as it was getting seriously off topic, I moved the discussion related to SLA printing of enclosure to here :
https://forum.mysensors.org/topic/10815/printing-enclosures-with-sla-printers

Feel free to suggest a better title.

[nagelc]

I've had surprisingly good luck buying cheap parts from Ali-express, but not this time. I bought an NRF52832 iBeacon that supposedly had an SHT30 temperature sensor and KX022 accelerometer. When the parts arrived, neither of those parts were populated. All the beacon has is a push button.

I was able to program it to work with MySensors, however. With only SWIO and SWCLK (no txt out), I took @scalz advice (in another topic) and used a J-Link EDU Mini so I could use the RTT app to get printf style debugging. That worked nicely and I learned a new tool.

Perhaps I can use the iBeacon button for a remote.

[berkseo]

Yesterday I finished my new project. This is motion sensor (S16-L201D) + light sensor (MAX44009) + temperature and humidity sensor (SI7020). Рowered by nRF52840.

..upd
video - https://youtu.be/cbJYam4jo2g

[karlheinz2000]

Another 8x8 matrix based display...
This is not a real project, just a try to hide the LEDs for better WAF.
Print still needs some impovements, but from a little distance you can't see the details.

[berkseo]

My new project is finished today and put to the tests. This is a continuation of my other project - Wireless Module for Capacitive Soil Moisture Sensor v1.2.

video: https://youtu.be/2HM0y-D7QNo

[alowhum]

Wow. All these recent creations are so professional. Really nice!

[berkseo]

Another project of mine, the second revision is finished today and put to the test. This is an encoder with accelerometer, powered by nRF52811 chip (datasheet).

[NeverDie]

@berkseo Cool!

[berkseo]

@neverdie Thanks for rating. Especially pleased, so as nRF52 for me began with Your those on this forum.

[monte]

@berkseo nice piece! Do you mean accelerometer for an encoder, or a physical one? And if the latter, what for is it supposed to be used?

[berkseo]

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

nice piece! Do you mean accelerometer for an encoder, or a physical one? And if the latter, what for is it supposed to be used?

I think the use cases quite a lot, I want to implement double tap. For example, there is a dimmable lamp with switching to cold and warm light. Here with the help of a double tap you can control the switch from cold to warm and back. In any case, I think this is a good extension of the functionality.

[NeverDie]

@berkseo :smiley: I'm glad it was helpful. And now you're inspiring me back! That's a virtuous circle if ever there was one.