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    kalina

    @kalina

    Hardware Contributor

    I am hardware engineer, and also I have an experience in programming ATMEL (AVR and CotexM0+) microcontrollers.

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    Location Ukraine Age 37

    kalina Follow
    Hardware Contributor

    Best posts made by kalina

    • RE: What did you build today (Pictures) ?

      Oh yes, I forgot to share photos of my new project - Multinetwork Mysensors Gateway. The main idea of this gateway is that it can at the same time serve up to four different networks (Lora - RFM9X, 2.4 GHz - NRF24 and ISM band RFM69). These networks can be assembled in separate modules and each user can build own set of modules. The incoming stream will be connected via Ethernet on various ports, for example, the gate will have the IP address 192.168.1.128, and each subnet will be served on ports 5003 - the first subnet, 5004 - the second, and so on ...

      7.jpg 6.jpg 5.jpg 4.jpg 3.jpg 2.jpg 1.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      Today i have assembled the latest revision of my Lighting X3 for DIN rail mounting.
      3.jpg 2.jpg 1.jpg
      5.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: 💬 MDMSGate

      2_1469688422763_MDMSGate_Foto_1.jpg 1_1469688422763_MDMSGate_Foto_2.jpg 0_1469688422763_MDMSGate_Foto_3.jpg

      posted in OpenHardware.io
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      Today I have finished work on control center for my smart home. The box includes a Raspberry Pi 3, gateway, ethernet switch, power supplies 5V and 9V. Audio input jack, ethernet and AC line cabels out from the box. Maybe, a GSM module should be included to the free space too (i will thinking about...). I am going to install this box in the near future.
      0_1522678287603_Box.jpg
      0_1522678293393_Cabels.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: 💬 MDMSNode "Power"

      I have received pcbs and i am waiting for components now for device testing.
      PCBWAY.com sent me pcbs in less than 2 weeks, as always super quality, thanks to them!
      0_1494305283802_MDMSNode Power.jpg

      posted in OpenHardware.io
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      I have assembled a few UPS ... now I am testing these hardware.

      2_1537103208634_UPS_3.jpg 1_1537103208634_UPS_2.jpg 0_1537103208633_UPS_1.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: 💬 Single board computer UPS

      First soldered device:

      0_1532781155787_UPS_2.jpg
      0_1532781208811_UPS_3.jpg

      And a small test:

      0_1532781143919_UPS_1.jpg

      posted in OpenHardware.io
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      I have finished an enclosure for the my MDMSPanel "Nextion" today.

      4_1550659232406_Panel_5.png 3_1550659232406_Panel_4.png 2_1550659232405_Panel_3.png 1_1550659232405_Panel_2.png 0_1550659232404_Panel_1.png

      posted in General Discussion
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

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

      Yes it's very impressing what you have achieved

      Thanks, the project is published already.

      https://www.openhardware.io/view/676/MDMSPanel-Nextion

      posted in General Discussion
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      LED backlight for my CNC machine....

      0_1534158848242_cnc.jpg

      posted in General Discussion
      kalina
      kalina

    Latest posts made by kalina

    • RE: What did you build today (Pictures) ?

      @NeverDie EMI is a big topic. I think there will be no problems. I am going to do some tests of communication
      quality for various modules and antennas. As for the antennas, I am going to fixed them to the body through the holes, but I have not yet decided on the location. As for connection antenna to the module you can see the on photo ...
      1612440252148.JPEG

      posted in General Discussion
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      @monte Not certainly in that way. In this project, everything is open source with the exception of the board with an ethernet (based on STM32). The ethernet board was developed by my partners and they are not ready to share it yet. But I hope I can persuade them to do it 🙂1.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      Oh yes, I forgot to share photos of my new project - Multinetwork Mysensors Gateway. The main idea of this gateway is that it can at the same time serve up to four different networks (Lora - RFM9X, 2.4 GHz - NRF24 and ISM band RFM69). These networks can be assembled in separate modules and each user can build own set of modules. The incoming stream will be connected via Ethernet on various ports, for example, the gate will have the IP address 192.168.1.128, and each subnet will be served on ports 5003 - the first subnet, 5004 - the second, and so on ...

      7.jpg 6.jpg 5.jpg 4.jpg 3.jpg 2.jpg 1.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      Today i have assembled the latest revision of my Lighting X3 for DIN rail mounting.
      3.jpg 2.jpg 1.jpg
      5.jpg

      posted in General Discussion
      kalina
      kalina
    • RE: 💬 MDMSNode "Lighting X3" (based on ESP8266)

      The device is soldered and fully tested!

      2.jpg
      11.jpg

      posted in OpenHardware.io
      kalina
      kalina
    • RE: What did you build today (Pictures) ?

      I have soldered the first sample of "xRoom" board.
      TODO: testing and detail description of the project))

      1_1564750405850_xRoom_2.png 0_1564750405849_xRoom_1.png

      posted in General Discussion
      kalina
      kalina
    • RE: 💬 MDMSGate

      Hi @berkseo. Thanks for the suggestion, but could you describe in more detail? As for my TODO list, there is already a task to add 485 interface to the gateway. My latest device "xRoom" have this interface.

      ps/ Where have you gone?

      I have been working on "xRoom" shield. A small announce:

      0_1562049826156_5e44feda-bb1e-4a93-b30a-0bc99a201ee5-image.png

      Do you remember the discussion about multinode? So, it will be available soon))

      posted in OpenHardware.io
      kalina
      kalina
    • RE: 💬 MDMSGate

      I am going to production a new batch of gateways, but before that I want to upgrade it. Does anyone have any suggestions for improving current version MDMSGate?

      posted in OpenHardware.io
      kalina
      kalina
    • RE: 💬 MDMSNode "Lighting X2"

      Hi @blackchart,
      Unfortunately, all devices are sold out. Further production is possible only when ordering more than 10 devices (in this case, I also can modify the device to suit your needs).

      posted in OpenHardware.io
      kalina
      kalina
    • RE: 💬 MDMSNode "Lighting"

      Hi @aramko-aramko.
      Unfortunately, this model is already sold. You can look at the upgraded version of this device - MDMSNode "Lighting" Rev 1.1.

      posted in OpenHardware.io
      kalina
      kalina